American Board of Ophthalmology (ABO) Practice Exam

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Prepare for the American Board of Ophthalmology Exam with expert resources. Utilize flashcards and multiple-choice questions with hints and explanations to excel in your exam.

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What characteristic of a lens color indicates high sun glare reduction?

Light tint
Medium tint
Dark tint
No tint

The correct answer is: Dark tint

A characteristic of a lens color that indicates high sun glare reduction is a dark tint. Dark-tinted lenses absorb more light and reduce glare more effectively than lighter tints or untinted lenses. This is particularly beneficial in bright light conditions, such as when driving or spending time outdoors in direct sunlight, where the intensity of light and glare can cause discomfort and hinder visibility. Dark tints work by decreasing the overall amount of light that enters the eye, thereby improving visual comfort and reducing the risk of glare-related visual disturbances. In contrast, lighter tints may offer some glare reduction but are less effective, as they allow more light to pass through. Anatomically, darker lenses can also reduce the contrast between the bright outdoors and the darker environments, helping to enhance overall clarity in the presence of bright sunlight.