An account of some observations made by a young gentleman who was born blind, or lost his sight so early, that he had no remembrance of ever having seen, and was couch’d between 13 and 14 yrs. of age.

The versatile Cheselden made an artificial pupil in an eye in which the products of inflammation had closed or obscured the natural pupil. This iridotomy operation was, next to Daviel’s cataract operation, the most important contribution to ophthalmology during the 18th century.