With technological advancement comes the improvement of modern medicine. Since time immemorial, we meet surgical developments with enthusiasm. Safer techniques with less cost are always the highlight.
In the field of Ophthalmology, visual corrective techniques focused on the application of lasers to correct errors. Some of these errors are nearsightedness, farsightedness, and astigmatism. There is a certain level of convenience in abandoning your glasses and having a 20/20 vision once more.
Nowadays, we compare two laser-assisted techniques. They are photorefractive keratectomy and laser-assisted in situ keratomileusis.
The Difference Between the Two
To know the difference between PRK and LASIK, we need to compare the procedural write up of the two. Doctors use them to correct nearsightedness, farsightedness, and astigmatism.
The surgeon removes the top layer of the cornea for the photorefractive method. Afterward, he uses an excimer laser to correct the inner layers. A contact lens-like special bandage is applied over the cornea to help the tissues heal.
For LASIK, the surgeon creates a flap on the top layer of the cornea. The surgeon opens the flap rather than removes it like in the photorefractive method. The surgeon also uses an excimer laser to carve up the cornea and correct errors.
Analysis: Which of the two?
Both photorefractive techniques and LASIK can permanently correct vision. The difference mainly lies in the cost and patient recovery.
PRK takes a long time to recover, with a recovery time of 30 days. It also requires changing bandages and is quite expensive. However, photoreactive techniques have a high success rate. There’s a low chance of complication because the surgeon does not create a flap during surgery.
LASIK, on the other hand, has a 4-day recovery period. No bandages are also needed, and the success rate is also high. However, with the creation of the flap comes complications. There is a higher chance of dry eye and poor night vision. There is also a high chance of eye injury.
Overall, reviewing the prospects of both surgical procedures for permanent correction of eyesight is essential before undergoing them. You should also consider if your insurance company includes them in their list of claims.
There are several criteria for eligibility for the surgery. Generally, they consider only those who are 18 years old and above. Other things to be considered are your prescription, pregnancy, and average pupil size in a dark room. They also look into allergic history, eye conditions like glaucoma or macular degeneration, and autoimmune diseases.