Which subjective finding suggests that an older adult client may have cataracts?

The subjective finding that indicates the presence of cataracts in an older adult client is cloudy vision. Cataracts typically lead to a gradual clouding of the lens in the eye, which can significantly affect clarity of vision. Individuals with cataracts often describe their vision as being cloudy, hazy, or blurry, as if they are looking through a fogged-up window. This perception of cloudiness is a hallmark symptom and is a direct result of the lens becoming increasingly opaque due to the accumulation of proteins.

Blurred vision may relate to other vision issues and is not specific to cataracts. Increased sensitivity to light can be seen in various ocular conditions, while difficulty seeing at night, known as night blindness, could stem from multiple causes and is not directly indicative of cataracts alone. Therefore, the specificity of "cloudy vision" makes it the most relevant subjective finding associated with cataracts.