American Board of Ophthalmology (ABO) Practice Exam

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Prepare for the American Board of Ophthalmology Exam. Study with interactive quizzes and comprehensive explanations to ensure you pass your test with confidence. Dive into a balanced mix of detailed questions and helpful hints for a successful exam experience.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which type of lens is specifically designed to enhance contrast in low-light conditions?

Polarized lens
Photochromic lens
Amber lens
Standard tint lens

The correct answer is: Amber lens

The type of lens specifically designed to enhance contrast in low-light conditions is the amber lens. Amber lenses are effective in filtering out blue light, which can create a glare and reduce visibility, especially in low-light or overcast conditions. By enhancing contrast, these lenses help the wearer perceive details more clearly, making them a popular choice for activities such as hunting or sports played in variable light conditions. Polarized lenses, while excellent for reducing glare from reflective surfaces, do not primarily focus on enhancing contrast in low-light scenarios. Photochromic lenses adjust their tint based on UV exposure, offering protection in bright conditions, but they do not specifically enhance contrast in low light. Standard tint lenses typically only provide a consistent color without the specialized filtering properties of amber lenses. Thus, amber lenses are uniquely suited for improving visibility and contrast when lighting is poor.