An account of two children born with cataracts in their eyes, to show that their sight was obscured in very different degrees; with experiments to determine the proportional knowledge of objects acquired by them immediately after the cataracts were removed

The design of the present communication is to explain a disagreement between the results of former experiments on this subject; since a very intelligent boy, thirteen years of age, couched by Mr. Cheselden in 1728, was unable, upon receiving his sight, to distinguish the outline of any object placed before him, and thought that every thing before him touched his eye; but the cases communicated to this Society by Mr. Ware in 1801 lead to a different conclusion. The subjects of Mr. Home’s experiments were not equally sensible of light previous to the operation of couching, and consequently were not similarly affected by objects presented to them after receiving their sight.