A man in his early 60s comes into the clinic complaining of fuzzy vision. An eye examination reveals clouding of his lenses. What is his problem and what factors might have contributed to it?

The  person will have "cataract".

Explanation:

As the eye examination of man revelas clouding of his lenses, it means the man will have the problem of  "Cataract" .

Cataract is defined as an eye problem that causes clouding of the lens which further decreases the vision.

Symptoms of cataract includes blurry vision, problem in night vision, faded colors, and halos around light.

Factors causing cataract includes exposure to UV radiation, smoking, aging, and trauma.

Treatment for cataract involve use of glasses and cataract surgery.

Thus, the man has a problem of Cataract and can be contributed by factors like aging, exposure to UV radiation, smoking and trauma.

i think your answer is c. measurement system in which the medication dosage was calculated.

answer; /// i believe its the cochlea;