<unk> s refers to a lens opacity which is present at birth.<unk> s cover a broad spectrum of severity: whereas some lens opacities do not progress and are visually insignificant, others can produce profound visual impairment.<unk> s may be unilateral or bilateral. They can be classified by morphology, presumed or defined genetic cause, presence of specific metabolic disorders, or associated ocular anomalies or systemic findings.
Congenital cataract
Childhood cataract
Corneal dystrophy
Macular corneal dystrophy
Motion-induced blindness
Cystic eyeball
Granular corneal dystrophy
Fundic gland polyposis