- Main Page
- Risk Factors
- Symptoms
- Diagnosis
- Treatment
- Screening
- Reducing Your Risk
- Talking to Your Doctor
- Living With Cataracts
- Resource Guide
The purpose of screening is early diagnosis and treatment. Screening tests are usually administered to people without current symptoms, but who may be at high risk for certain diseases or conditions.
Screening Tests
A comprehensive eye examination screens for cataracts. This examination should include:
- Visual acuity testThis eye chart test measures how well you see at various distances.
- Slit lamp examThis examination of the eye uses a specialized microscope that magnifies the eye.
- TonometryThis standard test measures fluid pressure inside the eye; increased pressure may be a sign of glaucoma
- Dilated eye examThe doctor gives you special eye drops to widen your pupil, which allows better examination of the lens and the structures of the back of the eye.
Screening Guidelines
Ask your doctor for guidelines specific to your individual situation. The American Academy of Ophthalmology recommends the following general screening guidelines for healthy adults with no risk factors for eye disease:
At least once between age 20-29At least twice between age 30-39Age 40-64: every 2 to 4 yearsAge 65 and older: every 1 to 2 years You should be screened more often, as directed by your doctor, or if you: Have risk factors for cataracts, glaucoma, or other eye diseasesHave a personal or family history of eye diseaseHave had a serious eye injury in the pastHad eye surgery in the pastAre taking a corticosteroid medicationHave diabetes, high blood pressure, or other chronic illnessNote: If you currently have eye symptoms, you should call your provider immediately for an evaluation. In case of an emergency, call for an ambulance immediately. References: American Academy of Ophthalmologywebsite. Available at: http://www.aao.org/. Mayo Foundation for Medical Education and Researchwebsite. Available at: http://www.mayo.edu/. Mayo Foundation for Medical Education and Researchwebsite. Available at: http://www.mayo.edu/. National Eye Institute website. Available at: http://www.nei.nih.gov/. Last reviewed August 2007 by Marc Ellman, MDPlease be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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