Cataracts - Diagnosis

Standard eye tests, therefore, may not be useful for determining whether a patient actually needs cataract surgery.

In general, even if cataracts are diagnosed, the decision to remove them should be based on the patient's own perception of vision difficulties and needs and the effect of vision loss on normal activity. The patient should also be aware of all the risks and costs of surgery. In order to determine the quality of life, the patient may be given a questionnaire such as National Eye Institute Visual Function Questionnaire, which asks 39 questions related to vision and daily activities. This test or others may be useful for determining if eye disease is actually impairing the ability to function.

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