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A cataract is a clouding of the eye lens. The lens is the opening where light passes through the eye. It is normally clear and focuses what you see onto the retina (back of the eye). With cataracts, the cloudy lens makes it hard for light to pass through. This causes problems with correctly focusing what you see on the retina. Your vision may be cloudy, hazy, and blurred. You may develop a cataract in one or both eyes.


Return to the emergency department if:

  • You suddenly lose your eyesight.
  • You feel a sudden, sharp pain in your eye.

Contact your healthcare provider if:

  • You have a fever.
  • You have chills, a cough, or feel weak and achy.
  • You have questions or concerns about your condition or care.

Follow up with your healthcare provider as directed:

Write down your questions so you remember to ask them during your visits.

Protect your eyes:

  • Wear sunglasses to protect your eyes from the sunlight and prevent eye discomfort. Make sure the sunglasses have UV protection.
  • Do not smoke. Nicotine and other chemicals in cigarettes and cigars can cause lung damage. Ask your healthcare provider for information if you currently smoke and need help to quit. E-cigarettes or smokeless tobacco still contain nicotine. Talk to your healthcare provider before you use these products.

© 2016 Truven Health Analytics Inc. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes. All illustrations and images included in CareNotes® are the copyrighted property of A.D.A.M., Inc. or Truven Health Analytics.

The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.