Eye surgery has advanced to such a level that ophthalmic surgeons are now able to correct astigmatism, farsightedness and nearsightedness by reshaping the cornea. This changes the way in which the eye refracts to light and corrects the vision problem. Microkeratome Lasik surgery is a mechanical procedure which uses a blade.
Effectively the surgeon makes use of this tiny little blade to create a flap in the corneal tissue. The surgeon then removes a certain amount of this tissue with an “eximer laser” and replaces the flap. There is also a newer type of bladeless Lasik in which a Femtosecond laser is used to create the flap, after which the same technique is used to remove the required amount of corneal tissue.
This surgery has been designed to assist people to see better, and many patients who have had to wear spectacles or contact lenses for years have been helped. The concept or rational for this surgery remains the same with every practitioner, however the tools they used to perform the surgery differ. For some ophthalmologists the terminology “Lasik” means all laser, while other still make use of Microkeratome Lasik in which a surgical scalpel is used.
Mayo Clinic health studies are available which compare bladeless and mechanical Lasik surgery, and these studies have found that both types of surgery have equal results. So you can rest assured that if your ophthalmologist is using a blade or a laser the results you will obtain from the surgery will be of equal quality.
Test subjects were examined six months after both these types of surgery had been completed, and no differences were found in respect of visual acuity. This particular study involved twenty patients, all of whom received surgery for astigmatism or nearsightedness.
The fact that both of these forms of surgery are available to patients who want to undergo this operation (it is elective surgery) indicates that either complete laser or Microkeratome surgery are just as good as one-another. In actual fact, in the study it was found that back-scatter was more prevalent in patients who received all-laser surgery as apposed to Microkeratome. Backscatter does not affect the quality of vision it can only be seen by the physician under testing conditions.