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About Optical Glasses

What is Optical Glasses?

Optical Glasses

Take a look around and you would see almost everyone around you wearing optical glasses. Our lives greatly depend on lenses inside those frames to see a better and a clearer world. To have a perfect vision there are three things that are a must for an individual:

  • The image that we see and focus on needs to fit the size of the retina
  • The image must get focused at the surface of the retina
  • The image that we focus on needs to get curved to match the curve of the retina

If any of the mentioned factors above does not work properly, people suffer from vision problem. To focus on the image correctly, there is a lens between pupil and retina and a transparent window known as cornea. If the surface of the lens or cornea is not smooth, then it causes aberration which leads to distortion known as astigmatism.

What are optical glasses?

Individuals have vision problems when the eye cannot focus on retina. To correct this imperfection, optical glasses are used balance the refractive error in the eye. Optical glasses are also popularly known as eyeglasses or spectacles used for vision correction.

There are two major types of vision problems:

  • Hyperopia: Farsightedness in a person occurs when an individual is unable to focus on a close object and it appears to be blurred. This is caused as the image that the individual is looking for does not come into focus before it gets to the retina. To correct this vision problem, plus lens are recommended for the individual. Bifocal lens are also used which helps a person to look at closer objects clearly and look normally while looking at distant objects.
  • Myopia: Nearsightedness occurs when an individual cannot see distant objects clearly. This is caused as an image gets focused before they reach the retina. To correct this vision problem, a minus lens is used, which moves the images farther back from where its gets focused on the retina.

Optical glasses are meant to correct the refractive error of a person’s eyes, so that s/he is able to see more clearly both for nearsightedness and farsightedness. They are also prescribed to an individual if s/he is suffering from presbyopia, or from an extraocular muscle imbalance such as strabismus or phoria.

Who is the best candidate?

Any individual who is suffering from nearsightedness and farsightedness can wear optical glasses to correct their refractive error of the eye.

Side effects:

Wearing optical glasses does not have any side effects.

What is the Cost?

What are the alternative solutions to optical glasses?

Possible Alternatives: