Analysis of the refractive status in patients with age-related cataract and shallow anterior chamber after phacoemulsification

Abstract

AIM: To explore the characteristics of refractive changes in patients with age-related cataract and shallow anterior chamber after phacoemulsification.METHODS: A retrospective study was conducted. 96 patients(112 affected eyes)with age-related cataract who were admitted to the hospital between March 2018 and June 2019 were divided into the shallow anterior chamber group(ACD≤2.20mm, 52 patients with 62 affected eyes)and the control group(ACD between 2.21 and 2.90 mm, 44 cases with 50 affected eyes)according to the anterior chamber depth(ACD). All subjects were treated with phacoemulsification. The diopter, ACD and anterior chamber volume(ACV)were measured before surgery, at 1d and 3mo after surgery. Pearson linear correlation analysis was performed to analyze the relationship between the refractive status and anterior chamber parameters in patients with age-related cataract and shallow anterior chamber after phacoemulsification.RESULTS: The diopter error in the shallow anterior chamber group was higher than that in the control group at 3mo after surgery(PPP>0.05). In the shallow anterior chamber group, the diopter error at 3mo after surgery was negatively correlated with preoperative ACD(PPP>0.05).CONCLUSION: There is hyperopic shift in patients with age-related cataract and shallow anterior chamber after phacoemulsification. The degree of hyperopic shift is negatively correlated with preoperative ACD and positively correlated with postoperative ACD, namely, the smaller the preoperative ACD, the larger the postoperative ACD, the severer hyperopic shift.

Keywords

• age-related cataract
• shallow anterior chamber
• phacoemulsification
• refraction
• anterior chamber depth