Straylight and visual quality on early nuclear and posterior subcapsular cataracts

CLEMENTE PAZ FILGUEIRA; LUIS ISSOLIO; ELISA COLOMBO; ROBERTO SÁNCHEZ

CURRENT EYE RESEARCH

TAYLOR & FRANCIS INC

Lugar: Londres; Año: 2016

0271-3683

PURPOSE: To measure log(s) and OSI parameters, both related to forward light scattering in the eye, in subjects with different kinds of early cataracts -nuclear or posterior subcapsular- and corrected visual acuity (CVA). METHODS: 34 eyes of 19 patients ranged between 50 and 75 years old with diagnosed nuclear (14 eyes) or posterior subcapsular cataract (20 eyes) were recruited. Only NO1, NO2, P1 and P2 opacity scores according to LOCS III were included. Observer examination included visual acuity, contrast threshold (Ct), and measurements performed by straylightmeter (straylight parameter log(s)) and double-pass instrument (objective scatter index (OSI)).RESULTS: OSI and log(s) was correlated with LOCSIII in nuclear opacities (P=0.015 and 0.004, respectively) and in the whole data (P=0.027 and 0.019, respectively) but did not for posterior subcapsular opacities alone. OSI was strongly correlated with log(s) in nuclear (r=0.885 and P