Claud Worth

Claud Worth FRCS
Born	1869 Holbeach, Lincolnshire
Died	1936 Falmouth, Cornwall
Nationality	United Kingdom
Known for	Ophthalmologist Writer Master Mariner

Claud Alley Worth FRCS (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 and an established author on the subjects of ophthalmology and sailing.

Claud Alley Worth was born in Holbeach, Lincolnshire in 1869, the son of Thomas Mordaunt Worth, scion of an ancient Lincolnshire family, and Frances Charlotte (née Alley). He was educated at Bedford Modern School between 1884 and 1887 and St Bartholomew's Hospital. He qualified as M.R.C.S. and L.R.C.P. in 1893 and was elected F.R.C.S. in 1898.

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. He was, for many years, ophthalmic surgeon to the West Ham Hospital in the East End of London.

Worth gained fame in two diverse areas of specialization: the management of childhood squint 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.

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