List three major features of the CCFDN syndrome.
Congenital cataracts, facial dysmorphism and peripheral neuropathy are three major features of the CCFDN syndrome. Other described signs and symptoms of the CCFDN syndrome include microcornea, microphthalmos, micropupil, floppy eyelid syndrome, pseudoptosis, nystagmus, congenital esotropia, impairment of distant visual acuity, ataxia, pyramidal signs, mild chorea, short stature, muscular atrophy, delayed early motor and intellectual development, hypogonadotrop hypogonadism, hypomyelination of the peripheral nervous system, serious complications related to general anaesthesia and parainfectious rhabdomyolysis.