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Why are my contacts and glasses same prescription?
Contact lens prescriptions and eyeglass prescriptions are not the same. They are significantly different because eyeglass lenses are positioned approximately 12 millimeters from your eyes, whereas contact lenses rest directly on the surface of your eyes.
Is it normal for contacts and glasses to have different prescriptions?
The answer is no. While they both have the same objective — to correct what eye doctors call “refractive errors” that prevent you from seeing correctly — prescriptions for eyeglasses and contact lenses are distinctly different.
Can I get a different brand of contacts from my prescription?
Unfortunately, not. Contact lenses come in different sizes and must be fit to your eye by an Optometrist or Ophthalmologist. If you would like to change the type or brand of lens you are wearing, your eye care professional will need to help you make that choice.
How long does it take for eyes to adjust to new prescription contacts?
Most professionals will tell you that you can expect it to take as long as two weeks to get adjusted to your new lenses. Here is a look at a few tips to help smooth the transition to wearing contacts and when you may need a little extra help from your eye doctor.
What is the difference between contact and eyeglass prescriptions?
This becomes significantly different with prescriptions of 4D or greater. Therefore, in our example, the power of a contact lens will be less than the eyeglass prescription for the right eye. A GP lens automatically corrects the astigmatism of the surface of the cornea by molding it into a spherical shape.
Why is the power of contact lenses less than glasses?
Therefore, in our example, the power of a contact lens will be less than the eyeglass prescription for the right eye. A GP lens automatically corrects the astigmatism of the surface of the cornea by molding it into a spherical shape. So a GP lens power will typically be close to the spherical correction of the glasses prescription.
Why do my glasses have cylinders but not my contact lenses?
In some cases, you may have cylinder and axis on your glasses prescription but not your contact lens prescription. This is because of what we mentioned earlier about doctors writing contacts prescriptions to get you as close to 20/20 as possible.
Do contact lenses make you less nearsighted?
Since eyeglasses are usually about 12 millimeters from the eye, the prescriptive power of a contact lens — which is positioned directly on the tear film of the eye — will be slightly less nearsighted. This becomes significantly different with prescriptions of 4D or greater.