Vision Services (San Francisco, CA 94188-3252)

• What causes my blurry vision?

  Maybe it is because you overuse your eyes and make it tired.When your eyes get tired, you will find things blurry. In this case, you should close your eyes and give them enough time to rest.

• Can contact lenses also provide UV protection?

  Though some contacts are made to give some degree of UV protection, they cannot give the same effect as sunglasses to protect the eyes. Because contacts don't cover all parts of your eyes but only cover the iris and pupil.

• Why does my child blink his eye frequently?

  It could be viral Conjunctivitis and often happens after a cold. The symptoms are red eyes,tearing,sensitive to light etc.You‘d better take him to see the doctor.

• What are the signs for glaucoma?

  My mother just had a glaucoma surgery.The signs for her are can't see things clearly suddenly, always feel sick and have a pain in the headache.

• Can sunglassess be considered as protective equipment?

  Sunglasses are not considered as protective equipment. Sunglasses are used to protect eyes from being damaged by the harmful UV rays. However, some sunglasses cannot give full protection to our eyes. Safety glasses are impact resistant and can provide adequate protection from particles, splashes and debris which can injure the eye. So safety glasses should be considered as protective equipment.

• What color in sunglasses can cause damage to eyes?

  To be exact,the blue lenses won't cause damage to our eyes,it is the blue lights that are harmful to our eyes. The blue lenses would allow the blue lights come into our eyes and cause damage.

• What are the harms if I wear other people's glasses?

  Your eyes may get infection if you wear other people's glasses. Because some people have eye disease which may be infectious.

• Why does wearing sunglasses cause dizziness?

  If your sunglasses are non prescription,the dizziness may be caused by oppression of nose pad. In that case,you should not wear sunglasses too long.

View More