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Certified Ophthalmic Medical Technologist (COMT)

Category - COMT

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True or False:

If the letters on the red side of a duo chrome test stand out more, add minus power.

True
False

Explanation

Answer: A

Green light is focused in front of the retina, yellow light at the retinal plane, and red light behind the retina due to chromatic aberration of the eye. Therefore, a brighter red suggests that more minus is required to move the red light's focal point.

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