Polaroid Photoscreening for Amblyogenic Factors in a Normal Population

Amblyopia is a leading cause of vision loss.1,2 Since early identification and treatment of amblyopia may lead to more favorable acuity outcomes, considerable attention has been paid to the development of amblyopia screening techniques.3,4 The direct measurement of visual acuity in very young and preverbal children can be time consuming in the context of mass screenings5-8, expensive9, and may tend to underestimate the incidence and magnitude of amblyopia.6 Therefore, most screening methodologies are based on the identification of amblyogenic factors (i.e., strabismus, refractive errors and media opacities).