Moderate to severe refractive errors: spherical equivalent refraction (SER) >  + 2.00 diopters (D) or <  − 3.00 D (the preexisting refractive errors should be corrected with spectacles)

Anisometropia > 1.50 D

Structural ocular pathology

Significant systemic disorders (for example, neurodevelopmental delay)

Unable to visit on a regular follow-up (family planning to move out of area)

Free full text: Click here