Claud Worth

Claud Alley Worth (1869–1936) was a British ophthalmologist, inventor of the Worth 4 dot test and Worth's Ambyloscope, a pioneer in the orthoptic treatment of squint, a master mariner

Early life Claud Alley Worth was born in Holbeach, Lincolnshire in 1869, the son of Thomas Mordaunt Worth, scion of an ancient Lincolnshire family, He was educated at Bedford Modern School, between 1884 and 1887, and St Bartholomew's Hospital.

Career Worth began the study of ophthalmology under Henry Power and Bowater Vernon at St Bartholomew's Hospital and in 1906 joined the staff of Moorfields. and amblyopia, and the sailing and navigation of small yachts. His inventiveness endures, as demonstrated by Worth's 4 dot test and later versions of his original amblyoscope.

Worth's name and books were also familiar to sailors of small yachts. He died in Falmouth, Cornwall, on 24 June 1936 and was survived by his wife and a son.

Publications (selected) 1939: Worth's Squint; 7th ed. by F. Bernard Chavasse. Baillière & Co. 1950: Worth and Chavasse's Squint; 8th ed. by T. Keith Lyle. Baillière, Tindall & Cox 1959: Worth and Chavasse's Squint; 9th ed. by T. Keith Lyle and G. J. O. Bridgeman. Baillière, Tindall & Cox