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III. An Account of two Children horn with Cataracts in their 
Eyes, to shew 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. By Everard Home, Esq. F. R. S. 
Read January 15, 1807. 
Mr . Cheselden’s observations on this subject, recorded in 
the Phil. Trans, for the year 1728, pointed out two material 
facts ; that vision alone gives no idea of the figure of objects, 
or their distance from the eye, since a very intelligent boy, 
13 years of age, upon recovering his sight was unable to dis- 
tinguish the outline of any thing placed before him, and 
thought that every object touched his eye. 
Mr. Ware’s cases, which have also a place in the Phil. 
Trans, for 1801, and are compared with that of Mr. Che- 
selden, appear to lead to a different conclusion. The fol- 
lowing observations are laid before the Society with a view 
to explain this circumstance. 
CASE I. 
William Stiff, twelve years of age, was admitted into St. 
George’s Hospital under my care, on the 17th of July, 1806, 
with cataracts in his eyes, which, according to the account 
of his mother, existed at the time of birth. From earliest 
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