Ultrasonic characteristics of retinopathy of prematurity presenting with leukokoria
D. R. Shapiro and R. D. Stone
The B-mode ultrasonic appearance of eyes afflicted with retinopathy of
prematurity exhibiting leukokoria was retrospectively investigated as an
aid to increase the accuracy in assessing the patient with leukokoria.
B-mode sonograms were obtained employing the immersion technique
(Sonometrics 150 A/B-mode instrument). Contact A-mode confirmation was made
(Kretztechnik 7200 MA instrument). Prominent B-mode characteristics
included echo patterns consistent with increased corneal thickness (47%),
shallow anterior chamber depth (73%), malpositioned lens (64%), cataractous
lens changes (64%), fibroproliferation in the anterior vitreous (63%),
total retinal detachment (53%), partial retinal detachment and/or retinal
fold (30%), choroidal thickening (30%), and acoustic shadowing of orbital
fat (33%). Together, these features aid in the ultrasonic differentiation
from other causes of leukokoria.
