Nuclear sclerosis cataracts can cause color vision changes; which defect is reported?

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Multiple Choice

Nuclear sclerosis cataracts can cause color vision changes; which defect is reported?

Explanation:
Nuclear sclerosis cataracts cause the lens to yellow with aging, which filters blue light more than red or green. This change shifts the eye’s spectral input so blue wavelengths become weaker, making blue-yellow color discrimination harder. That pattern is described as a Tritan-type defect, which is the acquired blue-yellow change seen with lens aging. Red-green defects (deutan or protan) come from inherited cone-pigment differences and aren’t typically produced by lens changes. Anomalous trichromacy refers to a congenital, generalized shift in color perception, not the acquired change caused by a yellowed lens.

Nuclear sclerosis cataracts cause the lens to yellow with aging, which filters blue light more than red or green. This change shifts the eye’s spectral input so blue wavelengths become weaker, making blue-yellow color discrimination harder. That pattern is described as a Tritan-type defect, which is the acquired blue-yellow change seen with lens aging. Red-green defects (deutan or protan) come from inherited cone-pigment differences and aren’t typically produced by lens changes. Anomalous trichromacy refers to a congenital, generalized shift in color perception, not the acquired change caused by a yellowed lens.

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