Objective Quantification of Lens Opacity in Posterior Subcapsular Cataracts Using IOL Master 700 and CASIA-2

医学 眼科 光学相干层析成像 白内障 接收机工作特性 验光服务 内科学
作者
Shuxin Fan,Rui Feng,Feiyan Liang,Chuang Li,Shuya Tao,Mingwei Wang,Chang He,Xialin Liu
出处
期刊:American Journal of Ophthalmology [Elsevier BV]
卷期号:254: 203-209 被引量:1
标识
DOI:10.1016/j.ajo.2023.06.003
摘要

•This study presented a new method for quantifying objectively and accurately the posterior subcapsular cataracts (PSCs) by IOL Master 700 and CASIA-2.•The APSD-3mm exhibited the highest correlation with BCVA and could distinguish severe PSCs.•We proposed that APSD-3mm can be used as a new accurate and objective index for PSCs quantitative assessment. PURPOSETo objectively quantify the lens opacity of posterior subcapsular cataracts (PSCs) using the swept-source optical coherence tomography (SS-OCT)–based devices including IOL Master 700 and CASIA-2.DESIGNProspective cross-sectional study.METHODSA total of 101 eyes of 101 patients with PSCs were enrolled in Zhongshan Ophthalmic Center from 2021 to 2022. The IOL Master 700 and CASIA-2 were used to obtain lens images. The average posterior subcapsular density (APSD) and the maximum posterior subcapsular density (MPSD) within the pupil area (radius: 3 or 5 mm) were measured by Image J. Spearman and Pearson correlation analysis were performed to assess the associations.RESULTSAPSD-3mm, APSD-5mm, MPSD-3mm, and MPSD-5mm had positive correlations with best corrected visual acuity (BCVA; r = 0.658, 0.641, 0.583, and 0.572, P < .001, respectively), all of which were higher than the correlation between LOCS-III P score and BCVA (r = 0.548, P < .001). Particularly, the APSD-3mm showed the highest correlation with BCVA. APSD could distinguish severe PSCs (LOCS-III P score ≥ 5) with an area under the receiver operating characteristic curve (AUC) of 0.836 (95% CI 0.743-0.930) for APSD-3mm and with AUC 0.758 (95% CI 0.643-0.873) for APSD-5mm, highlighting the better performance of APSD-3mm. The APSD-3mm of IOL Master 700 correlated strongly with that of CASIA-2 (r = 0.789, P < .001).CONCLUSIONSThis study presented an objective method for quantifying PSCs using IOL Master 700 and CASIA-2. APSD-3mm can be used as a new accurate and objective index for the quantitative assessment of PSCs. To objectively quantify the lens opacity of posterior subcapsular cataracts (PSCs) using the swept-source optical coherence tomography (SS-OCT)–based devices including IOL Master 700 and CASIA-2. Prospective cross-sectional study. A total of 101 eyes of 101 patients with PSCs were enrolled in Zhongshan Ophthalmic Center from 2021 to 2022. The IOL Master 700 and CASIA-2 were used to obtain lens images. The average posterior subcapsular density (APSD) and the maximum posterior subcapsular density (MPSD) within the pupil area (radius: 3 or 5 mm) were measured by Image J. Spearman and Pearson correlation analysis were performed to assess the associations. APSD-3mm, APSD-5mm, MPSD-3mm, and MPSD-5mm had positive correlations with best corrected visual acuity (BCVA; r = 0.658, 0.641, 0.583, and 0.572, P < .001, respectively), all of which were higher than the correlation between LOCS-III P score and BCVA (r = 0.548, P < .001). Particularly, the APSD-3mm showed the highest correlation with BCVA. APSD could distinguish severe PSCs (LOCS-III P score ≥ 5) with an area under the receiver operating characteristic curve (AUC) of 0.836 (95% CI 0.743-0.930) for APSD-3mm and with AUC 0.758 (95% CI 0.643-0.873) for APSD-5mm, highlighting the better performance of APSD-3mm. The APSD-3mm of IOL Master 700 correlated strongly with that of CASIA-2 (r = 0.789, P < .001). This study presented an objective method for quantifying PSCs using IOL Master 700 and CASIA-2. APSD-3mm can be used as a new accurate and objective index for the quantitative assessment of PSCs.
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