Effect of residual corneal astigmatism on visual acuity of patients undergoing regional refractive intraocular lens implantation / 眼科新进展
Recent Advances in Ophthalmology
; (6): 43-47, 2024.
Article
en Zh
| WPRIM
| ID: wpr-1022712
Biblioteca responsable:
WPRO
ABSTRACT
Objective To investigate the effect of residual corneal astigmatism on visual acuity after regional refrac-tive intraocular lens(IOL)implantation.Methods A retrospective cohort study was conducted.The medical records and follow-up data of 73 eyes of 57 cataract patients who underwent ultrasound emulsification cataract extraction combined with LENTIS Comfort LS-313 MF15 IOL implantation in the Ophthalmology Department of the Hebei General Hospital from June 2020 to March 2022 were collected.These patients were grouped according to postoperative residual corneal astigmatism:32 patients(40 eyes)with a residual corneal astigmatism of 0.75(exclusive)-1.50 D were taken as the experimental group,and 25 patients(33 eyes)with a residual corneal astigmatism ≤0.75 D were taken as the control group.The uncor-rected distance visual acuity(5 m),uncorrected intermediate visual acuity(80 cm),uncorrected near visual acuity(40 cm),out-of-focus curve,objective visual quality,subjective visual quality,satisfaction degree and lens removal rate of pa-tients in the two groups were recorded 6 months postoperatively.Results The postoperative uncorrected distance visual acuity(logMAR)was 0.10(0.00,0.22),the uncorrected intermediate visual acuity(logMAR)was 0.00(0.00,0.10),and the uncorrected near visual acuity(logMAR)was 0.20(0.10,0.30)and 0.20(0.10,0.20)in the experimental and control groups,with no statistically significant differences(all P>0.05).The postoperative out-of-focus curves showed that the distance visual acuity of patients with additional spherical equivalent refraction ranged from+2.00 D to-4.00 D in the two groups had no statistically significant difference(all P>0.05).There were statistically significant differences in to-tal aberration,coma aberration,modulation transfer function and Strehl ratio in the objective visual quality of patients after surgery(all P<0.05),and there was no statistically significant difference in the total higher-order aberration,spherical ab-erration and cloverleaf aberration(all P>0.05).There was no statistically significant difference in the subjective visual quality,satisfaction degree and lens removal rate in the two groups(all P>0.05).Conclusion Residual corneal astig-matism of 0.75 D to 1.50 D after LENTIS Comfort LS-313 MF15 IOL implantation has no effect on higher-order aberration,spherical aberration,and cloverleaf aberration in subjective and objective visual quality,and has an impact on total aberra-tion,coma aberration,modulation transfer function and Strehl ratio in objective visual quality.
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Base de datos:
WPRIM
Idioma:
Zh
Revista:
Recent Advances in Ophthalmology
Año:
2024
Tipo del documento:
Article