Efficacy of Foveal OCT-based Biometry to Fundus Biomicroscop
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A Study was conducted to assess the additive value of foveal swept-source optical coherence tomography (SS-OCT) based biometry to the preoperative fundus examinations for diagnosing macular abnormalities in patients scheduled for cataract surgery.

Consecutive patients 50 years of age and older planned for cataract surgery were retrospectively enrolled. All patients underwent foveal SS-OCT, and macular spectral-domain (SD)-OCT scans before pupil dilation as well as dilated fundus biomicroscopy examination. The effectiveness of fundus biomicroscopy examinations, foveal SS-OCT scans, and the combination of both in identifying macular diseases was analyzed with macular SD-OCT scans as reference.

Results:
--78 of the eligible 442 eyes were excluded due to non-interpretable macular SD-OCT scans or foveal SS-OCT scans. The remaining 364 eyes of 364 patients formed the study group.

--Fundus biomicroscopy alone vs fundus biomicroscopy with the addition of foveal SS-OCT yielded 36% vs 63% sensitivity, 94% vs 72% specificity, 79% vs 58% positive predictive value (PPV), and 71% vs 76% negative predictive value (NPV), respectively.

--This diagnostic improvement was significant compared to fundus biomicroscopy alone.

Finally, although combined fundus biomicroscopy and foveal SS-OCT scans enhanced the identification of macular defects prior to cataract surgery, they were inferior to macular SD-OCT scans.

Source: https://www.ajo.com/article/S0002-9394(21)00152-5/fulltext?rss=yes
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