ArticleJournal of ophthalmology2026
Association Between Lens Thickness and SRK/T Refractive Prediction Error After Cataract Surgery: A Single-Center Retrospective Cohort Study.
Article in Journal of ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Purpose: To evaluate the association between lens thickness (LT) and SRK/T refractive prediction error following cataract surgery and to analyze its underlying mechanism. Methods: This retrospective cohort study collected data from patients who underwent surgical treatment for age-related cataracts between January 2025 and June 2025. Patients were stratified into three groups based on LT: Group 1 (< 4.0 mm), Group 2 (4.0 ≤ LT < 5.0 mm), and Group 3 (≥ 5.0 mm). Intraocular lens (IOL) power was calculated using the SRK/T formula. Manifest refraction results were collected at ≥ 4 weeks postoperatively. Accuracy of IOL power calculation was analyzed using prediction error (PE), mean absolute error (MAE), median absolute error (MedAE), and the proportions of PE within ±0.25 D, ±0.50 D, and ±1.00 D. Correlations between LT and effective lens position (ELP) as well as postoperative refractive error were assessed. Results: A total of 431 patients (431 eyes) were included, with a mean LT of 4.50 ± 0.58 mm. The overall mean PE was -0.08 ± 0.44 D, and the mean ELP Conclusion: Increased deviation of LT from the mean results in larger ELP prediction errors and greater postoperative refractive error. Thin-lens eyes tended to be myopic, while thick-lens eyes tended to be hyperopic.
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