Can we always rely on Borish delayed test for latent hypermetropia?

Abstract

The term hyperopia refers to a refractive condition of the eye where parallel light rays from infinity focus behind the neurosensory retina, after refraction through the ocular media when accommodation is at rest. Latent hyperopia remains hidden in non-cycloplegic conditions, but patients with latent hyperopia often complain about headache, eyestrain, and watering, especially in young children with high accommodation. The prevalence of refractive errors suggests that these symptoms generally occur more frequently with near work, leading patients to avoid such tasks and become lethargic. In case of isometropia, the Borish delayed fogging test can be used as an alternative to cycloplegic refraction, particularly when cycloplegic drops are contraindicated.