What LASIK Can Do in Treating Presbyopia

What LASIK Can Do in Treating Presbyopia

LASIK eye surgery has made leaps and bounds in treating eye defects worldwide, and one of those problems that can be corrected is presbyopia. Presbyopia is described as a condition where the patient has increased difficulty-seeing things within very short distances. To be more specific, it relates to the eye muscles and how it reshapes your eye’s lens to focus better. This process of adjustment is what’s called accommodation in ophthalmology terms.

As people age, the accommodation strength gradually decreases. The most common way to improve near vision is by wearing a positive power lens. The prerequisite for the kind of eyeglass depends on the prescription. For example, the necessity for reading glasses will be lessened for myopia or nearsightedness patients by removing their distance glasses. This is possible because nearsighted individuals have a specific up-close location that they can clearly visualize without wearing glasses. The mathematical formula for this distance is 1/eyeglass prescription, and it is also described as the near focal point in optical terminology.

Most of the patients who have experienced this condition choose to undergo vision correction through laser. Unfortunately, the concept of wearing glasses with bifocal lens is not the same ideal that drives the laser eye surgery treatment, because currently, bifocal laser surgery cannot be performed on the cornea. Instead, monovision or blended vision will be the result of using the surgical laser.

Basically, this method creates a different purpose for each eye. One will be corrected for distance, while the other for nearsightedness. To achieve the latter, the eye will be made myopic, and consequently, the patient will experience nearsightedness on the said eye. As described previously, the eye will see clearly at a near focal point distance without the aid of glasses. This may sound outrageous because it may seem that that particular eye is intentionally damaged, but the overall result has satisfied many LASIK patients. This “blended vision” will be the outcome of making one eye stronger in distance and the other eye stronger for close proximities. Even though they have different functions, the eyes will work together to achieve better vision no matter what the space is between the person and the objects to be seen.

But take note. Monovision laser correction should not be used if a person fails a certain trial criteria concerning contact lenses. There are already monovision contact lenses available, and it is also commonly used as a treatment for those who prefer contacts. If you do pass these requirements, you need to keep in mind that monovision correction changes over time. The eyes will adapt to the gradual accommodation decrease. This is not a totally permanent cure. With that said, this surgery may not be for patients who want to live their whole lives without wearing glasses. You should instead be content with the few years this surgery will provide you with being glasses-free.

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