Sight Improvement Ctr (New York, NY 10036)

• What lens index should I get for my prescription glasses?

  Your prescription is strong, so I think 1.67 index will make your lens much thinner and give you a better look. However, you should consult your doctor to determine which one will suit you best.

• What is the difference between prescription and non prescription reading glasses?

  Non prescription reading glasses usually have the same prescription for each lens. They are cheaper than prescription reading glasses and its lens can't be replaced if it is broken or the prescription is changed. While prescription reading glasses are specially designed for each individual who have a different prescription for each eye. Since prescription reading glasses are customised, they can also correct astigmatism if required. Though non prescription reading glasses won't harm your eyes, you'd better go to an optician to have an eye exam and get prescription reading glasses.

• What Are the Disadvantages of LASIK Surgery?

  After laisk surgery, the cornea will be changed and can't be reversed later. As Lasik is quite complex, unskilled doctor may make error during the process which can affect your vision permanetly.

• Is vision therapy relly helpful for amblyopia?

  The younger you are, the more helpful the vision therapy will be for amblyopia. Some eye doctors think the vision therapy can do good to children who have amblyopia.

• Can I upgrade a 1.5 index lens to 1.7 index lens without replacing the lenses?

  That's impossible. The only thing you can do is to replace the lenses if you want to upgrade a 1.5 Index Lens To 1.7 Index Lens.

• What's the lowest degree you can get for non- prescription reading glasses?

  The lowest degree for the non-prescription reading glasses may be 0.50. You can go to the drug store to get this kind of reading glasses.

• Can non prescription reading glasses harm your eyes?

  Non prescription reading glasses are made with the same power in both lenses. They are suitable for people whose eyes have the same power in both eyes. However, most people have different unique prescription. If you have your own unique prescription, non prescription reading glasses will make you feel uncomfortable and actually cause problems instead of helping to correct vision. Some people will even have sore eyes and dizziness when they wear non prescription reading glasses for a long time. So it is better and more saft to wear prescription one.

• What can I do to postpone the presbyopia?

  To postpone presbyopia, you should form a good habit of living habit. Don't stay up late and overuse your eyes. Keep nutritious diet and take more food high in Vitanmin A and C. Doing eye exercise everyday would also help. Remember to have your eyes examined regularly.

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