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3.
JAMA Ophthalmol ; 136(6): 642-647, 2018 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-29710103

RESUMEN

Importance: Communication between applicants, mentors, and training programs is common before the residency and fellowship match. Few studies have examined the association of prematch communication on final match outcomes. Objectives: To report various characteristics of the vitreoretinal surgery fellowship match and to examine the association of mentor-to-program communication and applicant disclosure of their number 1 ranking with the probability of matching number 1. Design, Setting, and Participants: In this cross-sectional study of the 2016 and 2017 vitreoretinal surgery fellowship matches, an online survey examined (1) number of applications submitted, (2) number of programs ranked, (3) rank order of final match, (4) total application and interview-related costs, (5) mentor-to-program contact, (6) applicant disclosure of number 1 ranking, and (7) mentor disclosure of number 1 ranking. A link to an anonymous online survey was sent to 198 matched fellows (105 fellows from the 2016 match and 93 from the 2017 match). Main Outcomes and Measures: Survey responses regarding the vitreoretinal surgery fellowship application process. Results: The survey was sent to 198 matched fellowship applicants, and 152 (77%) completed the survey. Of the 105 matched applicants in 2016, 21 (20%) were women. Of the 93 matched applicants in 2017, 24 (26%) were women. Matched applicants applied to a mean (SD) of 34 (17) programs (range, 1-85) and ranked a mean (SD) of 12 (4) programs (range, 1-27). Of 152 applicants, 66 (43%) matched at their number 1 ranked program, 23 (15%) matched number 2, and 21 (14%) matched number 3. The mean (SD) total cost was $5500 ($2776) (range, $500-$13 500). Two-sided χ2 testing found no association (odds ratio, 0.70; 95% CI, 0.34-1.4; P = .33) between mentor-to-program contact and the probability of applicants matching at their number 1 ranked program. Matched applicants who revealed their number 1 ranking either personally or via a mentor matched at a program ranked lower (more desirable) on their rank list (mean match ranking, 2.8) compared with those who did not reveal their number 1 ranking (mean match ranking, 4.2; 95% CI, 0.2-2.5; P = .01). Applicant disclosure of their intention to rank a program number 1, either personally or via a mentor, was associated with matching number 1 (odds ratio, 2.6; range, 1.1-6.0; P = .03). Conclusions and Relevance: Vitreoretinal fellowship applicants who disclosed their number 1 ranking, either personally or via a mentor, were associated with improved match outcomes compared with their cohorts who did not make such disclosures.


Asunto(s)
Revelación/estadística & datos numéricos , Becas/estadística & datos numéricos , Internado y Residencia/clasificación , Mentores , Oftalmología/educación , Cirugía Vitreorretiniana/educación , Comunicación , Estudios Transversales , Becas/economía , Femenino , Humanos , Masculino , Oftalmología/economía , Selección de Personal , Encuestas y Cuestionarios , Cirugía Vitreorretiniana/economía
4.
Health Educ Behav ; 44(4): 626-637, 2017 08.
Artículo en Inglés | MEDLINE | ID: mdl-28058851

RESUMEN

INTRODUCTION: Alcohol consumption, including heavy drinking, is the fourth leading preventable cause of death in the United States. Youth who engage in heavy drinking are likely to experience a number of problems associated with their use. In 2015, U.S. prevalence of heavy drinking was 17% among 12th graders. These data suggest a clear need for conducting alcohol prevention activities among youth. METHOD: We designed the Click City®: Alcohol program for 7th graders, with a booster in 8th grade. We conducted an efficacy trial in 25 schools in three counties in Oregon. Schools were randomized to either the Click City: Alcohol ( n = 12) or Usual Curriculum condition ( n = 13). We present the results of a short-term evaluation, assessing change in outcomes from baseline to 1 week following the intervention among students in Click City: Alcohol schools versus those in Usual Curriculum schools. RESULTS: Students who used the Click City: Alcohol program significantly decreased their intentions to drink heavily in the future, as compared with students in the Usual Curriculum control condition, although the effect size was small. Changes in the targeted mechanisms were in the expected direction and were significant for all but one mechanism, with moderate effect sizes. CONCLUSION: Our short-term findings provide preliminary support for the efficacy of the Click City: Alcohol program to change adolescents' intentions to engage in heavy drinking. If the results are maintained over time, the program has the potential to prevent the onset of heavy drinking among teens and reduce the negative consequences associated with heavy drinking, including neurological and other health consequences.


Asunto(s)
Consumo de Bebidas Alcohólicas/prevención & control , Conocimientos, Actitudes y Práctica en Salud , Intención , Evaluación de Programas y Proyectos de Salud , Encuestas y Cuestionarios , Adolescente , Consumo de Bebidas Alcohólicas/efectos adversos , Femenino , Humanos , Internet , Masculino , Oregon , Asunción de Riesgos , Servicios de Salud Escolar , Estudiantes/psicología
5.
Patient Educ Couns ; 100(4): 720-727, 2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-27839891

RESUMEN

OBJECTIVE: In this project we developed and evaluated a mobile health app to improve adherence to tobacco cessation medication. METHODS: The study was conducted in three phases: (1) Create app with input from our consultant, focus groups and user testing; (2) Test feasibility of the app; and (3) Develop and user-test the barcode scanner. RESULTS: Focus group feedback was instrumental in developing content and creating the user interface. User testing helped to identify problems and refine the app. The feasibility trial provided "real world" testing. We experienced challenges in recruitment due to the inclusion criteria. We had high attrition due to technical issues, medication side effects, enrollment procedures, and lack of personal contact. Among the five retained participants, use of the app was associated with good medication adherence and high consumer satisfaction. CONCLUSION: The small sample size limits the generalizability of the findings and the conclusions that can be drawn from the study. However, the feasibility trial enabled the team to identify ways to improve the conduct of this and other mHealth studies. PRACTICAL IMPLICATIONS: We should expand RxCoach to include all prescription and over-the-counter tobacco cessation medications, and re-test for feasibility using lessons learned to improve recruitment and retention.


Asunto(s)
Teléfono Celular , Cumplimiento de la Medicación , Aplicaciones Móviles , Fumar/psicología , Telemedicina , Cese del Uso de Tabaco , Adulto , Anciano , Retroalimentación , Grupos Focales , Promoción de la Salud/métodos , Humanos , Persona de Mediana Edad , Satisfacción del Paciente , Adulto Joven
7.
J Oncol Pract ; 10(6): 373-6, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25336081

RESUMEN

PURPOSE: Errors in the use of medications at home by children with cancer are common, and interventions to support correct use are needed. We sought to (1) engage stakeholders in the design and development of an intervention to prevent errors in home medication use, and (2) evaluate the acceptability and usefulness of the intervention. METHODS: We convened a multidisciplinary team of parents, clinicians, technology experts, and researchers to develop an intervention using a two-step user-centered design process. First, parents and oncologists provided input on the design. Second, a parent panel and two oncology nurses refined draft materials. In a feasibility study, we used questionnaires to assess usefulness and acceptability. Medication error rates were assessed via monthly telephone interviews with parents. RESULTS: We successfully partnered with parents, clinicians, and IT experts to develop Home Medication Support (HoMeS), a family-centered Web-based intervention. HoMeS includes a medication calendar with decision support, a communication tool, adverse effect information, a metric conversion chart, and other information. The 15 families in the feasibility study gave HoMeS high ratings for acceptability and usefulness. Half recorded information on the calendar to indicate to other caregivers that doses were given; 34% brought it to the clinic to communicate with their clinician about home medication use. There was no change in the rate of medication errors in this feasibility study. CONCLUSION: We created and tested a stakeholder-designed, Web-based intervention to support home chemotherapy use, which parents rated highly. This tool may prevent serious medication errors in a larger study.


Asunto(s)
Servicios de Atención de Salud a Domicilio/organización & administración , Neoplasias/tratamiento farmacológico , Niño , Salud de la Familia/normas , Estudios de Factibilidad , Servicios de Atención de Salud a Domicilio/normas , Humanos , Errores de Medicación/prevención & control , Errores de Medicación/estadística & datos numéricos , Autoadministración
8.
J Refract Surg ; 30(7): 474-85, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24816208

RESUMEN

PURPOSE: To review and evaluate current and future directions in the diagnosis and surgical management of pellucid marginal degeneration (PMD), including penetrating keratoplasty, full-thickness crescentic wedge resection (FTCWR), deep anterior lamellar keratoplasty (DALK), crescentic lamellar wedge resection (CLWR), crescentic lamellar keratoplasty, tuck-in lamellar keratoplasty (TILK), toric phakic intraocular lens (PIOL) implantation, intrastromal corneal ring segment implantation (ICRS), corneal collagen cross-linking (CXL), and combined therapies. This is the first review article looking at the literature specific to PMD. METHODS: Review of published studies. RESULTS: Reported data for each treatment is presented. Penetrating keratoplasty is the treatment of last resort in PMD and is effective, but with considerable complications. DALK provides visual outcomes similar to penetrating keratoplasty without the risk of immune-mediated graft rejection, but its complexity and relative novelty limit its acceptance. FTCWR has good visual outcomes, but with significant astigmatic drift. CLWR is effective, but lacks long-term results. Crescentic lamellar keratoplasty and TILK are effective, but technically difficult and without long-term results. Toric PIOL implantation is effective, but ectasia progression is a concern. ICRS implantation can delay penetrating keratoplasty and improve contact lens tolerance, but does not treat the underlying process. CXL demonstrates effectiveness without complications, although data are limited and long-term results are needed. Combining treatments such as ICRS, CXL, toric PIOL implantation, and refractive surgery is promising, but additional studies are needed to investigate their efficacy and safety. CONCLUSIONS: Although little is understood about the etiology, pathophysiology, epidemiology, and genetics of PMD, new treatments are improving visual outcomes and reducing complications. Corneal collagen cross-linking is especially exciting because it halts disease progression. Combined treatments and improved screening could eliminate the need for surgical management in most cases of PMD.


Asunto(s)
Enfermedades de la Córnea/diagnóstico , Enfermedades de la Córnea/cirugía , Topografía de la Córnea , Técnicas de Diagnóstico Oftalmológico , Dilatación Patológica , Humanos , Procedimientos Quirúrgicos Oftalmológicos
9.
J Cataract Refract Surg ; 40(4): 564-74, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24568721

RESUMEN

PURPOSE: To compare the change in keratometry (K), spherical equivalent (SE), and visual acuity after myopic laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK). SETTING: Academic tertiary care center. DESIGN: Retrospective review. METHODS: The postoperative K, SE, and uncorrected and corrected distance visual acuities were measured 6 months, 9 months, 1 year, 2 years, 3 years, 4 to 5 years, 6 to 7 years, and 8+ years postoperatively. A difference (Δ) for each variable was calculated from its 6-month postoperative baseline. The rates of change were grouped based on the magnitude of myopic correction (0.00 to 2.99 diopters [D]; 3.00 to 5.99 D; 6.00 to 8.99 D), type of surgery (LASIK versus PRK), and age (<34 years; 34 to 45 years; >45 years). RESULTS: Statistically significant differences were found in the rates of change between low and moderate corrections to high corrections for ΔKavg (P=.0472 and P=.0091, respectively) and ΔSE (both P<.0001). Statistically significant differences were found in the rate of change in ΔKavg between all 3 ages groups (P=.0330, P=.0051, and P<.0001) and in ΔSE between ages less than 34 years and 34 to 45 years to ages over 45 years (P=.0158 and P=.0015, respectively). There was no significant difference in the rate of change in ΔKavg and ΔSE between LASIK and PRK (P=.3599 and P=.9403, respectively). CONCLUSION: There was keratometric and refractive regression for myopic LASIK, with the rate of regression depending on treatment magnitude and age. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.


Asunto(s)
Córnea/patología , Queratomileusis por Láser In Situ/métodos , Láseres de Excímeros/uso terapéutico , Miopía/cirugía , Queratectomía Fotorrefractiva/métodos , Adulto , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Miopía/fisiopatología , Refracción Ocular/fisiología , Estudios Retrospectivos , Agudeza Visual/fisiología
10.
Nicotine Tob Res ; 16(1): 33-41, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23884322

RESUMEN

INTRODUCTION: Click City (®) : Tobacco is an innovative, computer-based tobacco prevention program designed to be implemented in 5th-grade classrooms with a booster in 6th grade. The program targets etiological mechanisms predictive of future willingness and intentions to use tobacco and initiation of tobacco use. Each component was empirically evaluated to assure that it changed its targeted mechanism. This paper describes long-term outcomes for students who participated in a randomized controlled efficacy trial of the program. METHODS: A total of 26 middle schools were stratified and randomly assigned to the Click City (®) : Tobacco program or Usual Curriculum. The 47 elementary schools that fed into each middle school were assigned to the same condition as their respective middle school. In Click City (®) : Tobacco schools, 1,168 students from 24 elementary schools and 13 middle schools participated. In Usual Curriculum schools, 1,154 students from 23 elementary schools and 13 middle schools participated. All participating students completed baseline, post-6th grade program, and 7th grade assessments. RESULTS: As compared to students in schools that continued with their usual curriculum, intentions and willingness to smoke increased less from baseline to 6th grade and from baseline to 7th grade, among students in schools that used the Click City (®) : Tobacco curriculum. Changes in mechanisms were also in the expected direction. The program was particularly efficacious for at-risk students. CONCLUSIONS: Results provide evidence to support the long-term efficacy of Click City (®) : Tobacco. Program development, based on an empirical evaluation of each component, most likely played a role in the success of the program.


Asunto(s)
Servicios de Salud Escolar/organización & administración , Prevención del Hábito de Fumar , Adolescente , Niño , Humanos , Evaluación de Programas y Proyectos de Salud
11.
Cornea ; 32(10): 1315-20, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23928948

RESUMEN

PURPOSE: To determine the penetration of orally administered trimethoprim (TMP)-sulfamethoxazole (SMX) into the aqueous and vitreous cavity of noninflamed human eyes. METHODS: Nine adult patients undergoing cataract surgery and 10 adult patients undergoing pars plana vitrectomy were given 3 doses of oral TMP-SMX every 12 hours before the surgery. Aqueous and blood samples were collected from patients undergoing cataract surgery; vitreous and blood samples were collected from patients undergoing vitrectomy. The levels of TMP and SMX were analyzed using high-performance liquid chromatography and were compared with the mean minimum inhibitory concentrations (MIC) of potential ocular pathogens. RESULTS: TMP-SMX was present in all samples. Among eyes undergoing cataract surgery, the mean concentrations of TMP in aqueous and blood were 0.341 ± 0.141 µg/mL (mean ± SD) and 1.501 ± 0.433 µg/mL and of SMX were 5.259 ± 0.929 µg/mL and 11.835 ± 2.100 µg/mL, respectively. Among eyes undergoing vitrectomy, the mean concentrations of TMP in vitreous and blood were 1.864 ± 0.807 µg/mL and 4.591 ± 2.979 µg/mL and of SMX were 5.910 ± 2.705 µg/mL and 39.289 ± 15.469 µg/mL, respectively. MIC levels were achieved against many bacterial pathogens, including methicillin-resistant Staphylococcus aureus. CONCLUSIONS: TMP-SMX penetrates both the aqueous and vitreous cavities when given orally. The components reach therapeutic inhibitory concentrations in the ocular cavity against many potential pathogens.


Asunto(s)
Antibacterianos/farmacocinética , Humor Acuoso/metabolismo , Combinación Trimetoprim y Sulfametoxazol/farmacocinética , Cuerpo Vítreo/metabolismo , Administración Oral , Anciano , Anciano de 80 o más Años , Bacterias/efectos de los fármacos , Disponibilidad Biológica , Extracción de Catarata , Cromatografía Líquida de Alta Presión , Humanos , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Distribución Tisular , Vitrectomía
12.
Oman J Ophthalmol ; 6(1): 12-7, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23772119

RESUMEN

The Ocular Response Analyzer (ORA) (Reichert Ophthalmic Instruments, Buffalo, NY) allows direct measurement of corneal biomechanical properties. Since its introduction, many studies have sought to elucidate the clinical applications of corneal hysteresis (CH) and corneal resistance factor (CRF). More recently, detailed corneal deformation signal waveform analysis (WA) has potentially expanded the diagnostic capabilities of the ORA. In this review, the role of CH, CRF, and WA are examined in keratoconus (KC) and iatrogenic ectasia (IE). The PubMed database was searched electronically for peer-reviewed literature in July 2012 and August 2012 without date restrictions. The search strategy included medical subject heading (MeSH) and natural language terms to retrieve references on corneal biomechanics, CH, CRF, corneal deformation signal WA, IE, and KC. The evidence suggests that while CH and CRF are poor screening tools when used alone, increased sensitivity and specificity of KC and IE screening result when these parameters are combined with tomography and topography. Recent advances in WA are promising, but little is currently understood about its biomechanical and clinical relevance. Future studies should seek to refine the screening protocols for KC and IE as well as define the clinical applicability of WA parameters.

13.
J Refract Surg ; 29(5): 303-10, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23659228

RESUMEN

PURPOSE: To evaluate the causes of laser programming errors in refractive surgery and outcomes in these cases. METHODS: In this multicenter, retrospective chart review, 22 eyes of 18 patients who had incorrect data entered into the refractive laser computer system at the time of treatment were evaluated. Cases were analyzed to uncover the etiology of these errors, patient follow-up treatments, and final outcomes. The results were used to identify potential methods to avoid similar errors in the future. RESULTS: Every patient experienced compromised uncorrected visual acuity requiring additional intervention, and 7 of 22 eyes (32%) lost corrected distance visual acuity (CDVA) of at least one line. Sixteen patients were suitable candidates for additional surgical correction to address these residual visual symptoms and six were not. Thirteen of 22 eyes (59%) received surgical follow-up treatment; nine eyes were treated with contact lenses. After follow-up treatment, six patients (27%) still had a loss of one line or more of CDVA. Three significant sources of error were identified: errors of cylinder conversion, data entry, and patient identification error. CONCLUSION: Twenty-seven percent of eyes with laser programming errors ultimately lost one or more lines of CDVA. Patients who underwent surgical revision had better outcomes than those who did not. Many of the mistakes identified were likely avoidable had preventive measures been taken, such as strict adherence to patient verification protocol or rigorous rechecking of treatment parameters.


Asunto(s)
Hiperopía/cirugía , Queratomileusis por Láser In Situ/estadística & datos numéricos , Láseres de Excímeros/efectos adversos , Errores Médicos/estadística & datos numéricos , Miopía/cirugía , Queratectomía Fotorrefractiva/estadística & datos numéricos , Trastornos de la Visión/etiología , Adulto , Topografía de la Córnea , Femenino , Estudios de Seguimiento , Humanos , Hiperopía/fisiopatología , Masculino , Persona de Mediana Edad , Miopía/fisiopatología , Refracción Ocular/fisiología , Reoperación , Estudios Retrospectivos , Programas Informáticos , Trastornos de la Visión/fisiopatología , Trastornos de la Visión/cirugía , Agudeza Visual/fisiología
14.
Pediatrics ; 131(2): e455-62, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23319529

RESUMEN

OBJECTIVES: We report the results of a randomized clinical trial of a 3-hour, web-based, tobacco cessation education program, the Web-Based Respiratory Education About Tobacco and Health (WeBREATHe) program, for practicing pediatric respiratory therapists (RTs), registered nurses (RNs), and nurse practitioners (NPs). METHODS: Two hundred fifteen RTs (n = 40), RNs (n = 163), and NPs (n = 12) employed at the Children's Hospital of Philadelphia and the Children's Hospital, University of Colorado at Denver, participated in this study. All study activities were completed online. After consenting, participants were randomly assigned to either the training (intervention) or delayed training (control) condition. The training condition consisted of a 3-hour continuing education unit course plus ongoing online resources. Participants were assessed at baseline, 1 week, and 3 months after enrollment. RESULTS: Participants in the training condition were more likely to increase their tobacco cessation intervention behaviors than their delayed training counterparts (F[1, 213] = 32.03, P < .001). Training participants showed significantly greater levels of advise (F[1, 213] = 7.22, P < .001); assess (F[1, 213] = 19.56, P < .001); and particularly assist/arrange (F[1213] = 35.52, P < .001). In addition, training condition participants rated the program highly on measures of consumer satisfaction. CONCLUSIONS: The WeBREATHe program is the first evidence-based education program in tobacco cessation designed specifically for pediatric RTs, RNs, and NPs. Engagement in WeBREATHe increased participants' tobacco cessation-related behaviors.


Asunto(s)
Instrucción por Computador/métodos , Educación Continua en Enfermería/métodos , Educación Continua en Enfermería/organización & administración , Capacitación en Servicio/métodos , Capacitación en Servicio/organización & administración , Internet , Enfermeras Practicantes/educación , Enfermería Pediátrica/educación , Terapia Respiratoria/educación , Cese del Hábito de Fumar/métodos , Colorado , Curriculum , Hospitales Pediátricos , Hospitales Universitarios , Humanos , Philadelphia , Cese del Hábito de Fumar/psicología
15.
Clin Ophthalmol ; 6: 1827-37, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23152662

RESUMEN

PURPOSE: To evaluate the current United States Food and Drug Administration (FDA) recommendations regarding laser in situ keratomileusis (LASIK) surgery in patients with collagen vascular diseases (CVD) and assess whether these patients make appropriate candidates for laser vision correction, and offer treatment recommendations based on identified clinical data. METHODS: A literature search was conducted using PubMed, Medline, and Ovid to identify all existing studies of LASIK in patients with collagen vascular diseases. The search was conducted without date limitations. Keywords used for the search included MeSH terms: laser in situ keratomileusis, LASIK, refractive surgery, ocular surgery, and cataract surgery connected by "and" with the following MeSH and natural-language terms: collagen vascular disease, rheumatic disease, systemic disease, rheumatoid arthritis, systemic lupus erythematosus, Sjögren's syndrome, seronegative spondyloarthropathy, HLA B27, ankylosing spondylitis, reactive arthritis, psoriatic arthritis. The abstracts for all studies meeting initial search criteria were reviewed; relevant studies were included. No prospective studies were found; however, four retrospective case studies were identified that examined LASIK surgery in patients with CVD. Several case reports were also identified in similar fashion. RESULTS: The FDA considers CVD a relative contraindication to LASIK surgery, due largely to the ocular complications associated with disease in the CVD spectrum. However, recent studies of LASIK in patients with CVD indicate LASIK may be safe for patients with very well-controlled systemic disease, minimal ocular manifestations, and no clinical signs or history of dry-eye symptoms. CONCLUSION: LASIK surgery may be safe in patients with rheumatoid arthritis or systemic lupus erythematosus and the seronegative spondyloarthropathies if stringent preoperative criteria are met. Evidence suggests patients with Sjögren's syndrome are not suitable candidates for LASIK.

16.
Clin Ophthalmol ; 6: 1719-22, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23118524

RESUMEN

This observational case report describes the development of bilateral Mooren-like ulcers in a patient with anesthetic keratopathy. A 42-year-old man with a recent history of minor eye trauma and pain self-treated with tetracaine eye drops presented with complaints of acutely worsening vision and severe pain bilaterally. His visual acuity at presentation was limited to hand motion. Slit-lamp examination revealed bilateral epithelial defects at the center of the cornea, and an area of stromal infiltration and thinning with an undermining leading edge resembling a Mooren's ulcer in both eyes. Corneal haze and hypopyon were visible. Anesthetic use was halted immediately and the patient was started on prednisolone and mycophenolate mofetil (Cellcept(®)), after which visual acuity gradually improved and pain decreased. Despite improvement of symptoms, residual epithelial defects remained, and the patient was ultimately treated with keratoplasty for recovery of vision. We suggest that anesthetic keratopathy should be included in the differential diagnosis for any patient presenting with ring-shaped stromal infiltrates or nonhealing epithelial defects.

17.
Clin Ophthalmol ; 6: 1665-74, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23109803

RESUMEN

PURPOSE: A growing number of diabetic patients request laser in situ keratomileusis (LASIK) for elective vision correction each year. While the United States Food and Drug Administration considers diabetes a relative contraindication to LASIK surgery, there are several reports in the literature of LASIK being performed safely in this patient population. The purpose of this review was to examine whether diabetes should still be considered a contraindication to LASIK surgery by reviewing the ocular and systemic complications of diabetes, and examining the existing data on the outcomes of LASIK in diabetic patients. METHODS: A literature review was conducted through PubMed, Medline, and Ovid to identify any study on LASIK surgery in patients with diabetes mellitus. This search was conducted without date restrictions. The search used the Medical Subject Headings (MeSH(®)) term LASIK linked by the word "and" to the following MeSH and natural language terms: diabetes, diabetes mellitus, systemic disease, and contraindications. Abstracts for all studies meeting initial search criteria were reviewed for relevance. There were no prospective clinical studies identified. Three retrospective studies were identified. Key sources from these papers were identified, reviewed, and included as appropriate. An additional literature search was conducted to identify any study of ocular surgery on patients with diabetes using the MeSH terms refractive surgery, photorefractive keratectomy, radial keratotomy, cataract surgery, vitrectomy, and iridectomy linked by the word "and" to the following MeSH terms: diabetes, diabetes mellitus, and systemic disease. This search was conducted without date restrictions. Abstracts of studies meeting the initial search criteria were reviewed and articles deemed relevant to the subject were included in this review. CONCLUSION: LASIK may be safe in diabetic patients with tight glycemic control and no ocular or systemic complications.

18.
J Refract Surg ; 28(10): 675-82, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23061996

RESUMEN

PURPOSE: To compare the ratio of keratometric change (ΔK) to refractive change (ΔSE) induced by refractive laser ablation. METHODS: The charts of 3337 eyes that underwent LASIK or photorefractive keratectomy (PRK) from 2002 to 2011 were retrospectively reviewed, and the ratio ΔK/ΔSE measured at 3 months postoperatively was compared between eyes with low ΔSE (0.00 to 2.99 diopters [D]), moderate ΔSE (3.00 to 5.99 D), and high ΔSE (6.00 to 8.99 D). Eyes were further stratified by LASIK vs PRK; custom vs conventional treatments; microkeratome vs IntraLase (Abbott Medical Optics Inc) femtosecond laser-created flaps; and flat (38.00 to 41.99 D) vs moderate (42.00 to 45.99 D) vs steep (46.00 to 49.99 D) preoperative keratometry, and the ratio ΔK/ΔSE was similarly compared. RESULTS: Significant differences were found in the ratio ΔK/ΔSE among eyes with low ΔSE (1.00±0.50 D), moderate ΔSE (0.83±0.19 D), and steep ΔSE (0.80±0.15 D) (P<.001), and between eyes with moderate and high ΔSE in LASIK vs PRK, custom vs conventional treatments, and microkeratome vs IntraLase flaps. Significant differences in the ratio ΔK/ΔSE were also found in eyes with low, moderate, and high ΔSE regardless of preoperative keratometry. The ratio ΔK/ΔSE compared with ΔSE follows a nonlinear pattern and tended to be higher and more variable at lower amounts of correction. CONCLUSIONS: The change in simulated keratometry required to achieve 1.00 D of myopic refractive correction decreased as the amount of refractive change increased, was more variable with lower amounts of correction, and followed a nonlinear relationship. Many variables, such as LASIK vs PRK, custom vs conventional, and microkeratome vs IntraLase flaps, affected the ratio of ΔK/ΔSE for moderate and high myopic corrections.


Asunto(s)
Astigmatismo/fisiopatología , Queratomileusis por Láser In Situ , Miopía/fisiopatología , Queratectomía Fotorrefractiva , Refracción Ocular/fisiología , Astigmatismo/cirugía , Sustancia Propia/fisiopatología , Sustancia Propia/cirugía , Topografía de la Córnea , Femenino , Humanos , Masculino , Miopía/cirugía , Estudios Retrospectivos , Colgajos Quirúrgicos
19.
Clin Ophthalmol ; 6: 653-9, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22570546

RESUMEN

BACKGROUND: The purpose of this work is to report our experience using loteprednol 0.5% for routine prophylaxis after photorefractive keratectomy in an academic refractive surgery center. MATERIALS AND METHODS: Photorefractive keratectomy was performed on 579 eyes from 316 patients in this retrospective chart review of patients treated postoperatively with either fluorometholone 0.1% (273 eyes) or loteprednol 0.5% (306 eyes). Primary outcome measures at 6 months included uncorrected distance visual acuity, corrected distance visual acuity, and manifest refraction spherical equivalent. Secondary outcome measures were incidence of corneal haze and increased intraocular pressure. RESULTS: There were no statistically significant differences in preoperative characteristics between the two groups when comparing age, sex, best-corrected visual acuity, spherical equivalent, or keratometry. Both groups achieved excellent visual outcomes, with a mean uncorrected distance visual acuity (logMAR) of 0.004 ± 1.4 in the fluorometholone group and -0.028 ± 1.1 in the loteprednol group (P = 0.013) at 6 months. Postoperative corneal haze and increased intraocular pressure were uncommon and not statistically different between the groups. CONCLUSION: Loteprednol 0.5% performed similarly to fluorometholone 0.1% when used for prophylaxis following photorefractive keratectomy. The incidence of haze and increased intraocular pressure were similar between the two groups.

20.
Clin Ophthalmol ; 6: 459-64, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22536037

RESUMEN

PURPOSE: To evaluate visual outcomes in moderately myopic eyes with flat and steep corneas (preoperatively) that have been treated with laser-assisted in situ keratomileusis (LASIK). PATIENTS AND METHODS: Records of ninety-six eyes with average preoperative keratometry (K) values between 39.9 and 42.0 diopters (D) (flat) were matched with 103 eyes with preoperative K values between 46.0 and 47.2 D (steep) that underwent LASIK between March 2007 and March 2010 for moderate myopia, and were retrospectively reviewed. The primary outcome measures used to determine the effect of preoperative keratometry on visual prognosis were refraction, visual acuity, change in keratometry (ΔK), and change in spherical equivalent (ΔSE), measured at 1, 3, 6, and 12 months postoperatively. RESULTS: Significant differences were found at 6 months postoperatively between the flat group and steep group in SE (P = 0.029), sphere (P = 0.018), ΔK (P = 0.002), percentage of eyes achieving SE of -0.25 to + 0.25 D (P = 0.0125), -0.26 to -0.50 D (P = 0.003), -0.51 to -1.00 D (P = 0.044), and the percentage of eyes achieving uncorrected distance visual acuity of 20/15 or better (P = 0.0006). CONCLUSION: Moderately myopic eyes with flatter corneas preoperatively have better visual prognosis following LASIK compared with moderately myopic eyes with steeper corneas.

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