Retinal Residua of Retinopathy of Prematurity
نویسندگان
چکیده
Results. Measurable scores for both letter and grating acuity were obtained from 1694 eyes at 3 ' / 2 years and 2101 eyes at 4V2 years. Correlation analysis showed that the relation between crowded HOTV and grating acuity scores was best described by a quadratic function, with r values of 0.57 at 3 '/2 years and 0.68 at 4 '/2 years. Difference scores were calculated for each eye by subtracting the log of the HOTV score (converted to cyc/deg based on the convention that 20/20 = 30 cyc/deg) from the log TAC score. Normal eyes showed HOTV acuity that was higher than TAC acuity by an average of 0.37 octave (SD = 0.46, n = 1150) at 3V2 years and 0.27 octave (SD = 0.43, n = 1337) at 4'/2 years. HOTV and grating acuity scores were similar to each other in eyes with retinal residua of ROP. Overall, eyes with acuity better than 20/150 to 20/300 tended to show better HOTV than grating acuity, whereas those with acuity below 20/150 to 20/300 generally showed better grating than HOTV acuity.
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