The Table, developed by the Dutch ophthalmologist Herman Snellen, in 1862, by its easy application, it is still the main method of measuring vision in ophthalmologists' offices, despite their limitations:• Does not assess contrast perception.• Some letters are harder to identify than others.• Manufacturers can use different scales.• The lighting condition of the room can change the result.
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Newton Kara-Júnior (2023) studied this question.
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