Vu Tracie T OD (Portland,OR 97230)

• Why does eating carrots improve night vision?

  Rhodopsin is important in color detection. Light-sensitive, purple-red organic pigment contained in the rod cells of the retina that allows the eye to see in black and white in dim light. It is composed of opsin, a protein, linked to retinal, a conjugated molecule (see conjugation) formed from vitamin A. So eating carrots which are high in vitamin A can help improve night vision. source? http://wiki.answers.com/Q/How_do_our_eyes_see_color#ixzz1vUUWr0S5

• What can I do to keep my eyesight from getting worse?

  The most important thing you should do is to avoid too much close work such as playing computer or reading. Don't always stay up late and do exercise regularly to keep a healthy body. Your overall health is also important to maintain your vision.

• Are contacts supposed to be blurry on the first day?

  It is normal to have blurry vision at first day, and you should not wearing contacts too long on the first day. Increase the wearing time gradually, such as 2 hours for first day,4 hours for second day. If it keeps blurry several days later, maybe you have the wrong prescription.

• How to prevent marks on your nose from sun glasses?

  You can take your sunglasses to your optometrist. He will affix cushioned nose pads to your sunglasses so that your nose does not directly contact with the nose pad of your sunglasses. Then it can prevent marks on your nose.

• How long can contact lenses be stored in same solution without wearing them?

  You'd better change the solution everyday. Some people will store their lens in the same solution for 3 days. Anyway, you should change the solution at least once a week.

• Can I buy contact lenses for an astigmatism over the counter?

  It is against the law to sell you contacts without doctor's prescription and also there is no over the counter contact lenses. All prescription contact lenses are made based on your prescription.

• Do you have to wear glasses all the time if you have astigmatism

  You can get contacts. I've been wearing RGP (hard) contact lenses for 2 years now. I couldn't stand the weight in the soft contacts, or having to wear glasses all the time. They're pretty uncomfortable for 2 weeks but I'm so happy I made the switch.

• What is the treatment for Night blindness?

  If the night blindness is genetic, there is little chance that it can be cured. But if it is temporary and caused by deficiency of Vitamin A, you can take more food high in Vitamin A such as carrots to cure it.

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