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Doctor insights on: Can You Tell Me What My Eye Glasses Prescription Means

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Can you tell me what my eye glasses prescription means?

Can you tell me what my eye glasses prescription means?

It's a math formula: The prescription tells the lens maker how to shape the lens (glasses, contacts) that will best correct your vision. The first number is the amount of nearsightedness (-) or farsightedness (+) to be corrected. The next number is the amount of astigmatism to treat and the number after the "x" is the angle of the astigmatism to be treated. ...Read more

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Dr. Tim Conrad
784 doctors shared insights

Glasses (Definition)

Glasses is a term that describes a pair of lenses that are placed in a frame to be worn to correct faulty vision ...Read more


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My eye glasses prescription is -3.25... Does that mean it would be same if I order contacts?

My eye glasses prescription is -3.25... Does that mean it would be same if I order contacts?

Yes.: -3.25 would be the power of the contact lens. Assuming you are wearing a soft lens, You also need the other parameters which include the type of contact lens, the base curve and the diameter ...Read more

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What would my contact lense prescription be if my glasses prescription is -1.75 on my right eye and -1.25 on my left eye? Is it possible to tell?

What would my contact lense prescription be if my glasses prescription is -1.75 on my right eye and -1.25 on my left eye? Is it possible to tell?

CL prescription: Yes, it is possible to tell. It can be calculated from the power of your glasses and the distance of the lens of the glasses to your cornea. For a low prescription like yours, it will most likely be the same as your glasses. For higher prescriptions, it would be a different prescription. ...Read more

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How do you calculate an intermediate prescription for eye glasses?

How do you calculate an intermediate prescription for eye glasses?

Easy: Take the distance sphere power and add 1.00 to it and then take the near add power and reduce it by 1.00. This is my typical calculation for computer glasses. For example, your right lens is -2.25 +1.25 x 30 add: +2.00, your computer glasses would be -1.25 +1.25 x 30 add: +1.00. Hope this helps. ...Read more

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Are contact lenses better than eye glasses if you have a high prescription?

Are contact lenses better than eye glasses if you have a high prescription?

More natural: The vision you obtain with contact lenses mimicks your natural vision. The difference between spectacle correction and contact lenses is greater the stronger the prescription is. ...Read more

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Is it possible to get eye glasses lenses with just my contact prescription?

Is it possible to get  eye glasses lenses with just my contact prescription?

No: The focusing plane of the glasses is usually 10 to 20 mm in front of the focusing point of your contact lenses. The prescription will be different. Contact lenses will often correct astigmatism that will need to be added to the glasses prescription. ...Read more

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What is best test for finding out prescription eye glasses strength for a 4 yrs old? He is short sighted.

What is best test for finding out prescription eye glasses strength for a 4 yrs old? He is short sighted.

Eye glasses: You need to take the little boy to an eye doctor. The wrong prescription can make things worse. Please see a professional. Peace and good health. ...Read more

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I recently got a stronger prescription for my eye glasses, it's been a week and i still haven't gotten used to them. I feel dizzy and a little bit of ?

I recently got a stronger prescription for my eye glasses, it's been a week and i still haven't gotten used to them. I feel dizzy and a little bit of ?

May be normal or too: The scrip may be too strong or it may be just difficulty adjusting.Try for another week in short intervals.If you are still having trouble, go back to the doc. ...Read more

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I wear glasses (prescription) but only whn my eyes still constantly hurts in the sun watching tv etc vwey sensitive. Would you recommend contacts?

I wear glasses (prescription) but only whn my eyes still constantly hurts in the sun watching tv etc vwey sensitive. Would you recommend contacts?

Dry eye treatment: Artificial tears, ointment at night, low dose topical steroids, restasis, punctal plugs, and others are treatments for dry eye. Your symptoms sound consistent with dry eye. ...Read more

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Does one need an updated eye prescription to purchase glasses/contacts?

Does one need an updated eye prescription to purchase glasses/contacts?

Yes: Most practioners require an eye exam, refraction and contact lens fitting be done annually in order to receive a contact lens prescription. For glasses, many optical shops will not fill a prescription that is over 6 months old. ...Read more

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Do I have to get a new eye prescription to get glasses every time I want new glasses?

Do I have to get a new eye prescription to get glasses every time I want new glasses?

Depends: If your vision has changed since the last time you got glasses, you'll certainly want to be examined to get a new prescription. If you just want a different style frame/lens shape, the glasses providers can read your prescription from current glasses & adapt it to new frames /lenses of your choice. Still a good idea to have yearly eye exam to check for glaucoma, cataracts, macular degeneration…. ...Read more

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Can doctors tell me what does my glasses prescription mean?

Can doctors tell me what does my glasses prescription mean?

Lense power: The prescription for eyeglasses is the formula that the lense maker (optician) needs to provide the correct lense for your eyeglasses. On the form you will see od: right eye; os :left eye; power : strength ; cylinder: astigmatism; add: near vision correction for those over 40 and sometimes prism: for eye alignment. ...Read more

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Could you tell me if my contact lens prescription is -4.00/-4.50 what is my glasses prescription?

Close: Commonly it is slightly higer like -4.50 and -5.00 but this depends in part on the goal and how long since your last examination. Also at your age there is the issue of bifocals due to near vision needs. Useful to check with your ophthalmologist for the best information on this. ...Read more

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Can you please explain what this eye prescription means? 0.D. Cylinder -0.25 axis 90 o.S -0.50 axis 75?

Can you please explain what this eye prescription means? 0.D. Cylinder -0.25 axis 90 o.S -0.50 axis 75?

Don't worry: It means that you have an incredibly weak prescription and probably don't even need glasses. ...Read more

Eye Wear (Definition)

Eye wear is a device that either improves vision or protects the ...Read more