Classification and Management of Congenital Cataracts

Anatomical Classification and Clinical Significance

Anterior polar cataracts are localized opacities at the anterior lens pole, through which retinoscopy can often be performed readily, and typically cause mild to moderate amblyopia or may have no effect on visual development, according to the American Academy of Ophthalmology 1
Anterior subcapsular cataracts are located just beneath the anterior capsule and can be associated with phenothiazine use in younger patients, as noted by the American Academy of Pediatrics 2
Posterior polar cataracts are localized posterior opacities that allow reasonable fundus visualization despite difficult retinoscopy and typically cause mild to moderate amblyopia, as reported by the American Academy of Ophthalmology 1
Posterior subcapsular cataracts (PSC) are located just inside the posterior capsule, cause substantial visual impairment when involving the axial region, and are more common in young patients than nuclear and cortical forms, according to the American Academy of Ophthalmology 3

Dense central cataracts are highly likely to cause amblyopia in young children and require urgent intervention to prevent irreversible visual loss, as recommended by the American Academy of Ophthalmology 1
Newborns with visually threatening unilateral cataracts have better prognosis when the cataract is removed and optical correction is in place by 2 months of age, according to the American Academy of Ophthalmology 1
Surgery must be performed within 2 months of birth for dense congenital cataracts combined with prompt optical correction and aggressive occlusion therapy, as recommended by the American Academy of Ophthalmology 1
Children with known or suspected cataracts should be referred to a pediatric ophthalmologist for specialized management, as advised by the American Academy of Pediatrics 2
Coexisting refractive errors with partial cataracts must be corrected to optimize visual development, according to the American Academy of Ophthalmology 1
Subtle or unrecognized abnormalities of the retina or optic nerve may contribute to vision loss in addition to the cataract itself, as noted by the American Academy of Ophthalmology 1

Nuclear cataracts tend to progress slowly and affect distance vision more than near vision, as reported by the American Academy of Ophthalmology 3
Posterior subcapsular cataracts cause glare symptoms and poor vision in bright light, with near vision typically more affected than distance due to miosis with near accommodation, according to the American Academy of Ophthalmology 3
Family history of congenital or genetic ocular anomalies significantly increases risk of early cataract development, as noted by the American Academy of Pediatrics 2