Why does LASIK require a stable prescription?

Does your prescription have to be stable for LASIK?

Aside from having your refractive error fall within the treatable range, you need to have a stable vision prescription for over one year. For this reason, we recommend that patients wait until their mid-20s to get LASIK.

What is considered a stable prescription for LASIK?

The generally accepted guideline for stability is a change of 0.75 or less in any component of the prescription over the last year. So, if one year ago a patient wore –2.00 glasses and today they are using –2.75 or less their prescription is considered stable.

What does a stable prescription mean?

The stability of your prescription: Probably second in importance to your prescription is how stable it is. Typically clinics ask you have a stable prescription for twelve months to two years before the procedure. This is why teenagers and young people tend not to be great candidates for treatment.

Can you get LASIK if your prescription is too strong?

While LASIK can be used to correct many vision problems, to achieve the best results, your prescription should not be too high (whether you are nearsighted, farsighted, or suffer from astigmatism).

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Who isn’t a candidate for LASIK?

Many patients are not good candidates for laser vision correction because of systemic or ocular disease. Conditions, such as cataracts, diabetes, or autoimmune diseases like lupus or rheumatoid arthritis, may make LASIK and other laser vision correction options not a good choice for some patients.

Can you do LASIK twice?

A second procedure is necessary if refractive errors were not corrected during LASIK. If a second procedure has been deemed necessary, another flap will be created. Most surgeons won’t perform a second LASIK procedure unless it’s 5-10 years after LASIK.

How bad does your vision have to be to be legally blind?

If you’re legally blind, your vision is 20/200 or less in your better eye or your field of vision is less than 20 degrees. That means if an object is 200 feet away, you have to stand 20 feet from it in order to see it clearly. But a person with normal vision can stand 200 feet away and see that object perfectly.

How much can LASIK correct astigmatism?

When astigmatism is present, it typically does not exceed 3.0 diopters (D) in magnitude and can be fully corrected with a single LASIK procedure. Even higher amounts of astigmatism can be corrected with LASIK, though this increases the likelihood a follow-up LASIK enhancement may be needed to fine-tune the correction.

Is my eye prescription stable?

If your prescription is stable and your eyes healthy

To have LASIK eye surgery, you must have a stable prescription. This means your eyeglass prescription has not changed for at least two consecutive years. … This age of “ocular maturity” typically means prescriptions are more stable.

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Can LASIK correct any vision?

LASIK is a type of refractive eye surgery. In general, most people who have laser-assisted in situ keratomileusis (LASIK) eye surgery achieve 20/20 vision or better, which works well for most activities. But most people still eventually need glasses for driving at night or reading as they get older.

Can LASIK go wrong?

LASIK is surgery, and all surgeries come with risk. Surgical complications from laser vision correction are extremely rare. But they do occur. LASIK complications include infections as well as dislocation of the corneal flap that’s made during the surgery.

Is minus 9 legally blind?

Someone is legally blind if their better eye — while wearing any glasses or contacts — has a visual acuity of 20/200 or less or a field of vision of less than 20 degrees.

Does vision get worse after LASIK?

It permanently reshapes the tissue in the front of your eye, and these changes last your whole life. However, most people’s vision gets worse over time as part of the natural aging process. LASIK can’t stop this, so your vision may become blurry again as you get older.