Ametropic amblyopia and stereopsis
Reviewed by Fiona Rowe

This study aimed to evaluate the correlations between ametropic amblyopia (hypermetropic – 110, myopic – 30, and astigmatic – 65) and stereopsis in 205 children – mean age of 5.2 years ±1.8. For near stereopsis, significant results were found for mild and moderate amblyopia across myopia, astigmatism and hypermetropic refractive errors. Children with hypermetropia had better central stereopsis and macular stereopsis than those with myopia or astigmatism. Children with astigmatism had a significant reduction in stereopsis versus those with myopia and hypermetropia. Reduced stereopsis was seen in those with severe amblyopia. There was no significance for distance fusion range across groups. The authors conclude that types and degrees of amblyopia are closely related with stereopsis. Those with astigmatism were worst and the authors proposed more attention should be paid to treatment of this form of amblyopia.

Stereoscopic visual acuity in types of ametropic amblyopia in children.
Li S, Zon H, Wei C.
JOURNAL OF PEDIATRIC OPHTHALMOLOGY AND STRABISMUS
2014;51:105-10.