MAR 04, 2011
Researchers evaluated the refractive status and optical components of school-age Taiwanese children born prematurely and compared the results with those of age-matched children from a national survey.
The authors found a higher prevalence of myopia (48 percent versus 29 percent), hyperopia (23 percent versus 15 percent), and astigmatism (73 percent versus 41 percent) compared with controls. Common ocular features included shallow anterior chamber depth (ACD), thick lenses, and steep corneal curvature. Hyperopic eye had the shortest axial length , and myopic eyes had a significantly shallower ACD and greater lens thickness. Of the 108 premature children , 44 percent had retinopathy of prematurity (ROP) and 27 percent had ROP of at least stage 3. These children had more prominent anterior segment changes. Generalized estimating equations showed that refractive errors could be predicted by a combination of optical components.
The authors conclude that this study shows the importance of long-term follow-up. Theycall for more studies that examine refractive error changes in preterm patients when they reach adolescence adulthood.