Correlation Analysis Of Anterior Chamber Depth (Acd) And Refractive Error After Shallow Anterior Age-Related Cataract Surgery

To explore the distribution characteristics of postoperative refractive errors in patients with age-related cataracts in the shallow anterior chamber, and to analyze the relationship between anterior chamber depth (ACD) and postoperative refractive errors in cataract patients.

IOL power calculation

A total of 300 age-related cataract patients (300 eyes) who attended the Cataract and Presbyopia Department of Aier Eye Hospital of Wuhan University and underwent monocular cataract surgery from January to December 2024 were selected.According to the anterior chamber depth, patients were categorized into very shallow anterior chamber group (ACD<2.0mm), shallow anterior chamber group (2.0mm<ACD<2.5mm), and normal anterior chamber group (2.5mm<ACD<3.5mm). The patients' postoperative refractive error (PE) was calculated at 3 months postoperatively to compare the mean refractive error (ME), mean absolute error (ME), mean absolute error (MAE) and the median absolute error (MedAE).

The mean age of the patients was (68.5±7.2) years, the mean anterior chamber depth was (2.65±0.27) mm, the mean ocular axis length was (23.09±0.76) mm, and the mean corneal curvature was (44.16±1.61) D. Pearson's correlation analysis showed a positive correlation between anterior chamber depth and ocular axis length (r=0.208, P<0.05). Patients with longer eye axis length also had relatively deeper anterior chamber depth.Anterior chamber depth was moderately negatively correlated with postoperative refractive error in patients with age-related cataract (r=-0.274, P<0.05). The MAE and MedAE at 3 months postoperatively were 059D and 0.50D, respectively.

Anterior chamber depth has an impact on postoperative refractive status in patients with age-related row cataracts. Patients with shallower anterior chamber depth had greater absolute postoperative refractive error.