A refractive error is one of the problems that we experienced with our eyes. Refractive errors include problems like hyperopia or farsightedness, myopia or nearsightedness, and astigmatism. People who suffer from any of these complications may resort to wearing glasses or contacts. However, the person may also choose to undergo lasik eye surgery in order to treat the problem in such a way that the need for glasses or contacts is reduced or not needed at all. However, patients who suffer from eye problems may also turn to other types of surgery other than lasik eye surgery. Today, we are going to take a look into other types of refractive surgery.
1.) Phakic intraocular lenses – This type of refractive surgery is for patients who are suffering from an extreme case of myopia or nearsightedness. It is in cases like this wherein lasik eye surgery and other types of refractive eye surgery are no longer plausible enough. The treatment process involves using a phakic intraocular lens which is implanted into the patient’s eye. The used of the lens helps treat myopia up to negative twenty diopters.
2.) Advanced surface ablation – The treatment of lasik eye surgery involves creating a flap over the cornea in order to expose the corneal tissue underneath which is shaped using the excimer laser. However, there are also treatment procedures that do not require creating a corneal flap and these treatments are classified as advanced surface ablation treatments. Advance surface ablation treatments include laser subepithelial keratomuleusis or lasek, epipolis laser in situ keratomileusis or epi-lasek, and photorefractive keratectomy or PRK. In order to perform this cornea surgery, these treatments involve removing the uppermost layer of the cornea which is the epithelium.
3.) Intracorneal ring segments – Also known as intacts for shot, this type of refractive surgery is used in the treatment of low myopia and helps patients who are suffering from keratoconus. Intacs are actually segments that are very thin which are made from plastic. These are implanted into the patient’s peripheral cornea. Once there, the plastic intact can help flatted the shape of the cornea from the center. Although it may seem like a nuisance to have, patients who have intracorneal ring segments on their actually cannot feel it. The intact can also be removed and the effect of flattening can be reversed. As mentioned this only treats low myopia around negative three diopters and the recovery of vision isn’t as fast as other treatments.
4.) Conducive keratoplasty – This type of refractive surgery can help treat presbyopia and hyperopia temporarily. Also known as CK treatment for short, this type of treatment makes use of radiofrequency waves which are aimed at the cornea’s peripheral area. This result in the peripheral cornea to shrink and also results in the steepening of the central area. Compared to other cornea surgery treatments, CK treatment is considered to be quite safe. However, the effects of CK treatment don’t last as long and it is common to experience regression within a few years of the treatment.