Development of vision in retinopathy of prematurity
O. Katsumi, M. C. Mehta, Y. Matsui, H. Tetsuka and T. Hirose
Clinical Research Unit, Eye Research Institute, Boston, MA 02114.
Serial measures (range, two to eight) of preferential-looking grating
acuities of 52 infants with retinopathy of prematurity were made. Group 1
patients (n = 11), who had little or no macular displacement, had normal
preferential-looking acuity except for two who had mild acuity deficits.
None of the group 2 patients (n = 12), who had dragged maculas, ever had
normal acuity. On the average, their acuities, which ranged from 1 to 6
octaves less than normal, gradually increased at a rate not significantly
different from normal. Group 3 patients (n = 29), who had undergone
open-sky vitrectomy, had significantly lower acuity despite reattachment of
the retina.
