Visual quality of patients with posterior capsular opacification after Nd:YAG laser surgery

Abstract

AIM: To explore the value of the corneal/refractive analyzer OPD-Scan III in assessing visual quality after Nd:YAG laser surgery in patients with posterior capsular opacification.METHODS: A total of 98 patients(98 eyes)with posterior capsular opacification who underwent Nd:YAG laser posterior capsulotomy in our hospital from May 2021 to April 2023 were retrospectively selected as the research subjects, and higher-order aberration parameters(coma, spherical aberration and trefoil aberration)and visual quality parameters [Strehl ratio(SR)and 4 mm area ratio(AR)in the human eye modulation transfer function(MTF)curve] were obtained using the corneal/refractive analyzer OPD-Scan III. The patient's visual acuity, higher-order aberration parameters and visual quality before surgery, and at 1 wk and 3 mo after surgery were compared.RESULTS: There were statistically significant differences in uncorrected distance visual acuity(UDVA), uncorrected intermediate visual acuity(UIVA)and uncorrected near visual acuity(UNVA), coma, spherical aberration, trefoil aberration, SR and AR before and after surgery(all P0.05). Furthermore, the spherical aberration, trefoil aberration were negatively correlated with SR(rs=-0.427, P=0.009; rs=-0.436, P=0.010), and the trefoil aberration was negatively correlated with AR(rs=-0.406, P=0.015).CONCLUSION: The visual acuity of patients with posterior capsular opacification improved after Nd:YAG laser surgery, and the corneal/refractive analyzer OPD-Scan III system has a high clinical value in reflecting patient's visual quality.

Keywords

• corneal/refractive analyzer
• visual therapy
• posterior capsular opacification
• nd:yag laser
• posterior capsulotomy