Arachnodactyly and Ectopia Lentis in a Father and Daughter.

Burch (1936), in a comprehensive review, was largely responsible for furthering recognition of the condition in America, and the number of cases that have been reported, mostly in the ophthalmological literature, during the past ten years is an indication that arachnodactyly is not of extreme rarity, and that many milder cases and 'formes frustes ' have previously passed unrecognized. Stewart (1939) considers that the condition is not uncommon amongst mental defectives, although the intelligence of reported cases has generally been described as normal. Most of the reports have appeared in the French and German literature, but cases have been described in this country by Poynton (1903), Thursfield (1920), Poynton and Maurice (1923), Ormond and Williams (1924), Cameron (1924), Fowler (1924), Young (1929), Ormond (1929, 1930), Ellis (1931), Hudson (1932), King (1934), Sorsby (1935), Cockayne (1935), and Stewart (1939).