Kappa angle on visual quality after regional refractive MIOL implantation in high myopic patients complicated with cataract
10.3980/j.issn.1672-5123.2026.8.07
- VernacularTitle:Kappa角对高度近视并发白内障区域折射MIOL术后视觉质量的影响
- Author:
Hongdan ZHAO
1
;
Yanan LIU
1
;
Yanfang LI
1
;
Yue DONG
1
Author Information
1. Department of Glaucoma and Cataract, Daqing Aier Eye Hospital, Daqing 163000, Heilongjiang Province, China
- Publication Type:Journal Article
- Keywords:
Kappa angle;
high myopia;
cataract;
artificial intraocular lens implantation surgery;
visual quality;
stereoacuity
- From:
International Eye Science
2026;26(8):1348-1353
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To explore the effect of Kappa angle on changes in visual quality and stereoscopic acuity after regional refractive multifocal intraocular lens(MIOL)implantation in patients with high myopia complicated by cataract.METHODS:A retrospective analysis was conducted on data from patients with normal Kappa angle and high myopia complicated by cataract treated at the hospital from January 2024 to January 2025. Patients were divided into two groups based on the median preoperative Kappa angle(0.182 mm): Group A(00.05). The actual residual astigmatism in Group A was lower than that in Group B at 7 d, 1 and 3 mo postoperatively(all P<0.001). The proportion of eyes with near stereoscopic acuity <60″ was higher in Group A than in Group B, while the proportion of eyes with near stereoscopic acuity between 400″ and 3000″ was lower in Group A than in Group B(both P<0.05). Meanwhile, the incidence of visual disturbances in Group B was higher than that in Group A(P<0.05).CONCLUSION: The Kappa angle has no significant effect on visual acuity or objective visual quality in patients with normal Kappa angle and high myopia complicated by cataract after regional refractive MIOL implantation. However, patients with a larger Kappa angle exhibit higher postoperative residual astigmatism, worse near stereoscopic acuity, and a higher incidence of vision-related adverse symptoms.
