I Knew a Gentleman that had a Cataract growing, which, when I look’d on his Eye in a lightsom place, appear’d to cover almost just the Upper Part of the Pupil; and tho’ He were a Young Vigorous Person, and the Weather was very Clear, he could not well discern Men from Women cross the Street. But this Gentlemans Misfortune came by a great Stroke he received on that Side of his Head, where of heshew’d me the Scar; which Circumstance I therefore Note, because when no Outward Violence has been offer’d to the Eye, it has been observed by a good Oculist, and, if I misremember not, I have Seen an Instance of it, That a small Part of the Pupil, left uncover’d by the Cataract, would serve for more Sight than the Gentleman enjoy’d. In him likewise I had a further Confirmation, of what I was lately Observing about the Conspicuousness of White Objects. For tho’ he could not, as I was saying, discern Men and Women that pass’d by, on the other Side of the Street, yet, having once desired him to tell me, if he could distinguish any Object there, he told me that he could; and that I might no longer Doubt of it, when I asked him what he saw, he said that it was a Woman that pass’d by with a White Apron, which Apron he saw directly, and therefore might easily conclude, without distinctly seeing the Wearer, that the Person that Wore it was a Woman.
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