My Econo S 39 95 Optical (San Antonio, TX 78218-2146)

• Do I need different prescriptions for glasses and contacts?

  Prescription for glasses is different from that for contacts because the contacts are placed on the eyeballs directly while glasses are a little far from eye.So the power of the contacts is slightly less nearsighted than the power of glasses.

• How do you think of people who have perfect vision but still wear glasses for style?

  They are chasing fashion, I see many famous stars wear glasses even they have perfect vision.I know some people wear non-prescriptin glasses to conceal the eyes without make up. Some even wear glasses to prevent wind and sands.

• Why do people wear glasses frames without lenses in them?

  It is becoming a trend of fashion for wearing glasses frames without lenses in. They are followed not only by students, successful man but also the celebrities. As the pour of this trend, glasses are no longer only the vision correction tool but also a fashion accessory.

• Why do prescription lenses and frames cost so much?

  Unlike other products, glasses are custom made products. Glasses are professional vision correction tools for people with vision problems.That is why they are costly. But you can still find some online stores offer glasses with high quality but with affordable price, usually 1/2 lower than that in brick and motor stores. Firmoo is one of them, they have large selections of frames,but you can save up to 80%-90% for a pair, my last pair cost me only $20 with shipping.

• Is it okay for men to wear tortoise-shell sunglasses?

  Of course.Tortoise-shell sunglasses are very popular with many people including women and men. It just depends on your own preference. If you think they look good on you, just wear them then.

• Who created the first pair of sunglasses?

  There are different opinions about who invented the first pair of sunglasses,someone says it is James Ayscough,while others say it is Sam Foster.There is no way to record it.There is no point in arguing this,who cares.

• Why does the LCD screen of my computer become blank when I look at it through my polarized sunglasses?

  As we konw that Polarizing lenses work by filtering out horizontal light that causes glare. LCD screen on the computer also have a polarizing filter, but they are commonly at around a 45 degree angle. That is to say, when you tilt your glasses at the right angle, all of the light is filtered out and the screen becomes blank.

• Will plain lens glasses be harmful to your eyes if you are just wearing them for fashion?

  If you wear plain glasses correctly, they won't damage your eyes. Some cheap plain glasses may cause damage to your eyes if you wear them for a long time. So you'd better wear them at most 4 hours a day when you wear plain glasses for fashion. What's more, you should do some eye exercises often to relax your eyes.

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