ametropia

Full Definition

Ametropia encompasses all refractive errors including myopia, hyperopia, and astigmatism, where the eye's optical system fails to bring light rays to a sharp focus on the retina. In pediatric ophthalmology, ametropia is significant because uncorrected refractive errors can lead to amblyopia development during the critical period of visual development. Early detection and correction are essential to prevent permanent visual impairment in children.

Usage

Usage note: Often confused with emmetropia (normal vision). Use specifically for abnormal refractive states.

In Context

• "The presence of significant ametropia in one eye can lead to deprivation amblyopia if left uncorrected during the critical period." — Clinical assessment report
• "Screening programs aim to detect ametropia early in childhood to prevent amblyogenic factors." — Pediatric vision screening protocol