Objective Assessment of Crystalline Lens Opacity Level by Measuring Ocular Light Scattering With a Double-Pass System

Purpose: To assess the crystalline lens opacity level by measuring ocular light scattering with a double-pass system.Design: Prospective, single-center, cross-sectional study.Methods: Two hundred fifty-three eyes of 135 patients referred for cataract evaluation were enrolled. Patients with corneal or retinal anomalies potentially impairing ocular transparency were excluded. Lens opacification was assessed by the Lens opacities classification system III. Optical Quality Analysis System (Visiometrics SL) measurements provided ocular Modulation Transfer Function cutoff frequency and Objective Scatter Index. Best-corrected visual acuity and Quality of Vision questionnaire scores (Rasch-scaled) were recorded. We analyzed correlations between visual acuity, type and severity of cataract, Optical Quality (Read more...)

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