There have been advancements in laser vision correction Belfast recently as reports have shown that those who underwent small incision lenticule extraction (SMILE) instead of Lasik surgery have had lower chances of suffering from post-refractive surgery dry eye disease.
Small incision lenticule extraction, or SMILE, is one of the newest laser eye surgery techniques used to treat short-sightedness. SMILE uses femtosecond technology to create a thin circular disc of tissue called lenticule, which is removed through incision in the cornea. The incision made through SMILE is significantly smaller at only 4mm compared to that of the 20mm of Lasik surgery.
Advocates of the SMILE techniques claim that every benefit a patient gets from Lasik is available through SMILE but without a corneal flap due to the smaller incision made in the cornea.
Alexandre Denoyer, a medical doctor, conducted a post-operation study on 30 patients who underwent SMILE procedure and then compared them to 30 who underwent laser eye surgery through Lasik.
Denoyer and his colleagues wrote in their study called Ophthalmology that it is important to understand what causes post-refractive dry eye disease because a better understanding would help develop newer and safer procedures such as SMILE.
They also wrote that understanding the mechanisms that of post-refractive dry eye disease would determine the risk factors that such a disease would cause to the eye due to surgery.
In their study, Denoyer and his colleagues found that those who underwent Lasik had a higher rate of suffering from dry eye disease a month after operation compared to those who underwent SMILE. However, both groups were shown to have high to moderate rates of suffering from the disease only that Lasik showed a higher rate.
Corneal sensitivity for those who underwent the SMILE procedure was also better after a month compared to those in the Lasik group who were able to attain similar corneal sensitivity only after six months post operation.
The results have led Denoyer and his colleagues to conclude that the SMILE procedure affects the ocular surface and the cornea at a les pronounced rate compared to the effects of Lasik and that such are the reasons why dry eye disease happens at a lesser rate in SMILE compared to that of Lasik.