Exams and Tests
Diagnosis of
cataracts is based on a
medical history and
physical examination.
Often tests are used to:
- Confirm the presence of a
cataract.
- Rule out other conditions that may be causing vision
loss.
For more information, see the topics
Vision Tests,
Ophthalmoscopy, and
Tonometry.
In deciding whether to have surgery, it can be very helpful to
evaluate the effect that vision loss from a cataract has on your life. Your
doctor may ask you to complete a questionnaire regarding the effect of the
cataract on daily activities.
If you have already experienced some vision loss that cannot be
corrected by cataract surgery, your doctor also may perform a
low-vision evaluation to help find ways for you to
make the most of your remaining vision and maintain your quality of life.
Early Detection
Routine screening for cataracts in adults is not necessary since
most adults have an eye exam when they are having vision problems.
Testing your child for cataracts may be necessary if
you think your child is having a vision problem.