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lens materials eyeglasses

A 29-year-old member asked:
Dr. Richard Bensinger
52 years experience Ophthalmology
Compensation: Eyeglasses are made to adjust the light focus onto the retina at the back of the eye. They compensate for whatever the natural focus is by adding or ... Read More

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A 33-year-old female asked:
Dr. William Dieck
38 years experience Ophthalmology
Spherical abberation: You should return to the optician who filled the prescription and have him/her check for an aberration in the lens material.
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1 thank
A 33-year-old female asked:
Dr. Bruce Saran
33 years experience Ophthalmology
With or without glasses?: With or without glasses? If it's with classes then it has something to do with the way they're making the lenses. If you've tried different lenses, ... Read More
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2 thanks
Dr. Tim Conrad
34 years experience Ophthalmology
Need more info: With glasses only? One eye or both? What do "white dots" look like? Constant or intermittent? What situations do you see them?
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A 45-year-old member asked:
Dr. David Miller
10 years experience Family Medicine
Possibly: The thickness of eyeglass lenses depends on the material of which they're made. In some cases, the same prescription can be made in a material that al ... Read More
A 44-year-old member asked:
Dr. Richard Bensinger
52 years experience Ophthalmology
Not easily: Scratches in polycarbonate lenses involve the removal of plastic in the scratch. To smooth it out you would need to grind this away which would alter ... Read More
A 37-year-old member asked:
Dr. Ilan Cohen
25 years experience Ophthalmology
No: There are other materials which can be used, trivex for example.
A 41-year-old member asked:
Dr. William Dieck
38 years experience Ophthalmology
Requires : Observation of the lens on the eye and followup to determine if the contact is harming the ocular surface.
A 40-year-old member asked:
Dr. M. Christine Lee
28 years experience Dermatology
Bifocals: Bifocals are eyeglasses with 2 different optical lenses.
A member asked:
Dr. Deborah Josefson
28 years experience Internal Medicine
Yes: Eyeglass cleaners are generally alcohol based , and don't deteriorate. Since you use them on glasses and not on yourself or in your eyes, it's fine to ... Read More
A 19-year-old female asked:
Dr. Michael Savetsky
14 years experience Ophthalmology
New prescription: its possible that your eyeglass prescription has changed. naturally at night, your eyes can become slightly more nearsighted. there are other less com ... Read More
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1 thank

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