HEALTH CANADA-LASER EYE SURGERY ARTICLE

1. The types of vision problems caused by refraction errors that are corrected by laser eye surgery are: 1- Myopia( near sightedness), 2- Hyperopia( far sightedness), 3- astigmatism( distorted vision when looking at objects at any distance), 4- and prespyobia.



2. The part pf the eye that plays a large part of the eye's ability to fovus is the light sensitive layer in the back of the eye.



3. There are four types of of laser procedure. The PRK, LASIK, LASEK, & Epi-LASIK. PRK: first the outer layer of the cornea removed. Then the laser is used to vaporize some tissues to reshape the cornea and correct vision. LASIK: the flap is removed, then calculated amounts of tissue are vaporized by laser then tha flap is pout back. LASEK: this surgery is a mix of the PRK & LASIK together. first the outer layer of the cornea is cut off. Then alcohol is used to loosen and lift it in a single layer. Then the laser is directed at tissue under the epilithium.



4. The benifits of all the procedures is that it corrects the eye vision. Make u get rid of using glasses or contacts. The risks are alot actually. With the PRK, the risks include: pain, hazy vision during the healing process, regression. With LASIK, there is less post-operative pain but there greater complications than just that, it includes: dry eyes, poor quality if night vision due to the glare which could affect your ability to drive at night, corneal ectasia, corneal infection. The more recent LASEK surgery shares some problems associated with both PRK( pain, haze, and regression) and LAZIK. However, the LASEK procedure reduces the risk of the complications associated with cutting flap in the cornea, such as weakening the eye and dry eyes.


5. Before deciding on doing an eye procedure u should put in mind your life style and definitly the history of your family regarding any eye desease. You should also ask your surgeant about this procedure and if its going to work for certain people with special sitiuations. If you play any kind of sports u might considre that the flap might fall of if you get hit in it.


6. Well no i wouldnt choose to have an eye surgery don because basically its has too many risks that it makes you forget about the benifits and its just too much complications. However, if i choose to do an eye procedure i would do the LASEK because it has less complications and less risks to worry about.