There are people in this world who have problems with their eye visions. Some cannot see items that are very near them while others have trouble seeing things that are far from them. As an overview, the eyes of individuals who have vision problems are not capable of refracting and/or focusing light.
Fortunately, corrective lenses like eyeglasses and contact lenses have been developed to assist individuals with eye vision problems. What is better is that the field of Ophthalmology has improved a lot since its beginning. Nowadays, people no longer have to rely on the above-mentioned eye appliances just so they can see clearly. That is due to the fact that certain special surgical procedures like Laser-Assisted In-Situ Keratomileusis (LASIK) are already available.
As the name implies, LASIK is an eye refraction corrective surgery procedure wherein laser is used to help correct different types of vision problems namely near sightedness (myopia), far sightedness (hyperopia), and astigmatism. It is a painless procedure that only takes a few minutes, from 10 to 15 minutes, to be completed. Initially, in order to improve the patients’ vision, the opthalmologists or eye doctors will create a circular flap in order to access and remove some corneal tissue. Such is done in order to either normalize or change the shape of the cornea. Through such, the capability of the eye to refract light improves. The good thing about LASIK is that most patients notice visual improvement within 24 hours. Likewise, they only need topical anaesthetic drops and do not need any bandages and stitches. The greatest thing about the LASIK technology is that it continues to improve and upgrade over time. Such have helped not just the patients but also the doctors.
Nowadays, eye doctors are already capable of customizing or personalizing the LASIK treatment procedure of the patient. Meaning, they are already capable of correcting the patient’s vision based on their specific and unique eye structure. Thus, over- and under-corrections, which is common with the traditional method, are prevented. Such is made possible by the Wavefront- and Topographic-guided LASIK technologies. However, the two procedures have certain differences. As an overview, with the Wavefront technology, the doctors will consider all the optical elements like corneal stroma, retina, anterior and posterior corneal surfaces, vitreous humor, and crystalline lens. Thus, it is capable of correcting a majority of eye aberrations. The problem with the procedure, however, is that it uses a static measurement approach, which is at some point not ideal since the eye is a dynamic organ.
The Topography-guided LASIk technology, on the other hand, only relies on the corneal topography. That is due to the fact that it will only involve the microscopic reshaping of the problematic cornea. The greatest advantage of this technology is that it can still be used to individuals who have corneal scars or opacities, as well as severe corneal shape irregularities. However, the predictability rate of refractive correction outcomes is lower than the Wavefront technology. Nevertheless, both technological procedures have shown effectiveness when it comes to achieving 20/20 or better vision results.