A rare genetic eye disorder characterized by congenital cataracts (cloudy eye lens) and small eyes. The various types differ in the origin of the genetic defect. Type 4 involves a defect on chromosome 22q11.2-q13.1. Type 1 involves a defect on chromosome 16p13.3 and type 2 involves chromosome 14q23. See also Microphthalmis, isolated, with cataract 4