Nelson Erik L OD (Lahaina,HI 96761)

• Will the sunglasses lose UV protection when they get wet with water?

  As sunglasses can be cleaned with water,it can't lose UV protection when getting wet with water.But if it is chlorine water,it may lose the UV protection cuz there may be chemical reaction between them.

• Is the UV protection in a prescription lens enough to protect our eyes?

  That will depend on whether they have full UV protection. A prescription glasses lens can be made with UV protection, in which the special materials are used to protect UV rays. Whether the prescription glasses with UV protection can fully protect your eyes depends on the index of UV protection of the lens. If the lens is made of UV400, then it will block all the UV rays and protect your eyes completely.

• Are sunglasses the bigger the better?

  No,the sunglasses are not always the bigger,the better. If the size of sunglasses is too big, the curve of the lenses has also to be big. Once the curve is more than 15°,your vision will be uneven when looking through it and can cause eyes tired easily. You can also have dizziness.

• Can children younger than 6 wear sunglasses?

  Children younger than 6 don't actually need sunglasses. But if the lights are too strong,they can wear them for one or two hours and take them off once they get to indoors.

• Is it possible to get clear lenses with UV protection?

  Of course you can. Most of the lenses can block UV rays more or less,but a UV protection coating can give you 100% protection.

• Why does my eyes keep tearing?

  It can be Herpes simplex keratitis (HSK) and often happens when your body resistance is down.You need to see the doctor immediately otherwise you may get blind.

• Is it necessary for the prescription glasses to have UV protection?

  Too much UV exposure can cause cataracts later on in life and UV protection should not make things look dim.Maybe you need to change another place to get prescription glasses with UV protection.

• What food is good for computer user?

  Carrots, dark leafy vegetables, red dates, sesame, soybean are all good food for computer users.

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