A nurse is caring for a client who has a cloudy, opaque area over the lens of one eye. The nurse should identify that this is a manifestation of which of the following visual impairments?

A. Macular degeneration: This condition affects the macula, leading to central vision loss, not cloudiness in the lens. B. Diabetic retinopathy: This condition affects the blood vessels of the retina and can cause vision loss, but it does not cause cloudiness in the lens. C. Cataracts: Cataracts cause the lens of the eye to become cloudy or opaque, leading to blurred or reduced vision. D. Glaucoma: Glaucoma affects the optic nerve and can cause peripheral vision loss but does not cause cloudiness in the lens.