Laser Eye Surgery Essay

...world.Some people don't know how important vision is. We use eyes so much and los most of my eyesight.In general,there are mainly solutions to help us see better which are contact lens and glasses.But,there is a solution that can solve its which is LASIK surgerry. Initially,LASIKsurgery were developed in Columbia by the Spanish ophthalmologist,Jose Barraquer.In his clinic,he would cut thin flaps in the cornea to modify its shape.We also exemine how much of cornea had to be left unaltered in order to provide stable long-term results.This work was followed by the Russian,scientist,Svyatoslav Fyodorow,who developed the Radial keratotomy in the 1970s.In 1980, Rangaswamy Srinivisan discovered that an ultraviolet excimer laser could each living tissue,with precision and with no thernal damage to the surrounding area.Five years later, Steven Trokel published his work using the exicimer laser in radial keratotomy with his colleagues performed the first human VISX regractive laser eye surger. LASIK stands for Laser-Ssisted in situ Keratamileusis commonly referred to as laser eyesurgery or laser vision correction.The procedure involves creating a thin flap on the eye,floading it to enable remodeling of the tissue with a laser and repositioning the flap.Patients wearing soft contact lenses are instructed to stop wearing them 5-21 days before...

Lasik Eye Surgery Essay

Nowadays, different options for correcting vision problems are available. LASIK eye surgery is one of these options that is a procedure done on the cornea; the clear part in front of the eye. This procedure tends to reduce the dependence on glasses and contact lenses and provide excellent vision. LASIK has been proposed as the perfect way to provide excellent vision without the need for glasses. Furthermore, some advantages have been emphasised such as the shortness of procedure duration time and the immediate noticeable excellent results. However, there are serious complications can be occur by this procedure. This essay will argue that LASIK eye surgery is not the best way to provide improved vision with the freedom of glasses compared with other treatments. This argument will be supported by examining some serious complication of LASIK eye surgery compared with ortho-k, comparing the cost-effect measures for both treatments, and then pointing out the limitation of LASIK eye surgery. Finally, the criticism regarding frequent follow-ups with ortho-k will be refuted.

First of all, LASIK eye surgery is an irreversible procedure and can cause serious complications. These complications can occur in either of the two steps of the surgery on the cornea. The first step, which is creating the flap by microtome blade or with the newly technique femtosecond laser, is important to uncover corneal stroma where the second step takes place on. This step can cause serious complication called flap buttonholing which can endanger the cornea to sub-epithelial scarring and epithelial ingrowths (McAlinden et al .2008, p.24) which can affect the vision negatively. Maldonado (2002) asserts that even with the improvement of the instrument and ophthalmologist experience, the condition of operative complication such as flap buttonholing is one of the potential serious complications that still occur as a result of the first step of LASIK. This certainly indicates that LASIK is not the best treatment due to the high possibility of scaring the cornea permanently as a result of such complication. Furthermore, the second step, which is performed by using excimer laser to reshape the corneal structure by removing tissues to correct the refractive errors, can cause other serious complications. The most serious complication is corneal ectasia which means that the cornea bulges from the surface due to the weakness and thinning of the layers as a result of corneal tissue ablation. Guttman (2008) points out that the relationship between changes in corneal hysteresis increased with greater ablation depth. This indicates that ablation of corneal tissue is the main reason in reducing corneal resistance which as a result can cause ectasia. In this case the only available solution is corneal transplant which can cause further complications by itself. On the other hand, ortho-k is a safer alternative treatment which will provide patients with a good vision and freedom from any...

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