Neither procedure in and of itself is painful. In general, the LASIK procedure is more uncomfortable than PRK because pressure is felt when the suction ring is applied during flap formation. In both procedures, patients with small eyes tend to have more discomfort than the average patient when the speculum is placed. The speculum is… Read the full article
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Why Do Some Patients That Have PRK Have Slightly Blurred Vision Longer Than Others?
The PRK procedure involves removing the surface cells prior to treatment with the laser. The surface cells the grow back over the next 3 to 4 days and form a healing line. As the healing line smooths out vision improves. Rarely, the healing line can fall directly in the center of vision in both eyes and the… Read the full article
What If I am Not a Candidate for Lasik
Four out of ten patients that come to see us are not candidates for Lasik eye surgery. Of these, two can have PRK. So 20% of patients can only have PRK. When we do our monthly statistical analysis we note that we do 50% PRK. This is because 3 out of 10 candidates that qualify for Lasik… Read the full article
Boston Magazine’s Top LASIK surgeon/ Ophthalmologist
Dr. Ernest W. Kornmehl, M.D.,F.A.C.S. is selected as a Top Laser Surgeon and Laser Center in Boston Magazine’s Top Doctors issue 2011.
Contemplating Laser Eye Surgery (Part I)
If you have worn eyeglasses or contacts most of your life, the possibility of having good eyesight without them may seem remote. But today, high success rates with LASIK and PRK are inspiring more people to seriously contemplate laser eye surgery. A good way to get started is to address these two questions: Am I… Read the full article
An Overview of Laser Vision Correction – Part 3
LASIK and Myopic Correction As explained earlier, patients who are nearsighted have corneas with too much curvature in proportion to the length of their eyes. Once the corneal flap is made and lifted back, the excimer laser reshapes the underlying stroma to achieve a flatter cornea. The surgeon’s carful, precise measurements, which are programmed into… Read the full article
An Overview of Laser Vision Correction – Part 2
Photorefractive Keratectomy (PRK) The procedure that originally made wide use of the excimer laser was photorefractive keratectomy (PRK), first performed in 1987. Instead of using a microkeratome to remove the corneal disc, PRK uses the laser to accurately sculpt the cornea one microscopic layer at a time. PRK has seen vast improvements since those early days. PRK sculpts… Read the full article
An Overview of Laser Vision Correction – Part 1
People have understood the mechanics of eyesight for thousands of years. Writings and drawings on this subject go back as far as 2000 BC. And the quest to correct vision has never stopped. From the invention of eyeglasses hundreds of years ago to the fabrication of the first American contact lenses, the evolution of vision… Read the full article
How the Human Eye Works Part 3
Most people who have had an eye exam that includes a test to measure visual acuity, clarity or sharpness of vision, recognize the simple notation 20/20 as meaning “normal vision.” What do those numbers mean? Let’s say your vision is 20/40. That means you can see at twenty feet what a person with normal vision can see… Read the full article
Boston Magazine’s Top LASIK surgeon/ Ophthalmologist
Dr. Ernest W. Kornmehl, M.D.,F.A.C.S. is selected as a Top Laser Surgeon and Laser Center in Boston Magazine’s Top Doctors issue 2010.