Background information laser eye surgery

Traditional, invasive laser eye surgery may soon be a thing of the past thanks to new research.

In addition, laser-assisted vision correction surgeries such as LASIK still use technology that can thin and in some cases weaken the cornea. And then there's always the fears faced by the patient in having their eye ball messed around with. However, a Columbia Engineering researcher has developed a new non-invasive way to permanently correct vision that could prove a great alternative for traditional eye surgery. This technique is unique because it uses a selective and localised alteration of the biochemical and biomechanical properties of corneal tissue.

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It thus changes the tissue's macroscopic geometry, is non-surgical and has fewer side effects and limitations than those seen in refractive laser eye surgeries. For instance, patients with thin corneas, dry eyes, and other abnormalities cannot undergo refractive surgery. If proven a safe procedure for the masses, it could lead to treatment for all major sight issues such as myopia, hyperopia, astigmatism, and irregular astigmatism, without the need to even touch the patient.

His innovative new method uses a femtosecond oscillator to alter biochemical and biomechanical properties of collagenous tissue without causing cellular damage and tissue disruption. This technique allows for enough power to induce a low-density plasma within the set focal volume but does not convey enough energy to cause damage to the tissue within the treatment region.

I was warned before that my vision would actually be worse than it was previously without glasses right after surgery, and my vision would correct itself in the days subsequent.

How to choose a laser eye surgeon

After these four hours you can open your eyes again, and drops must be applied every hour for the rest of the day. Two anesthetic drops much be applied four times a day for the week after, and protective goggles which stop you from causing damage to your eyes while sleeping, must be worn every night. Nevertheless, I was at the cinema the evening of my surgery, watching a movie from the middle rows.

This is how well my eye healed, taken in my one month post-op check-up. In my one month check up, my vision was absolutely perfect.

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Life changingly so. I could even go swimming and get water in my eyes, so soon after surgery. But best of all, due to the low-invasive nature of the procedure, I was able to overcome the queasy feelings I had with my eyes, and now do not need to massage my own face at dinner after a day of wearing specs. It truly is life-changing, and is bound to shape the industry in years to come as it grows in popularity.

Glasses shops; watch your backs! Freelance journalist covering health tech and fitness innovation. Share to facebook Share to twitter Share to linkedin One of our most cherished senses has to be the gift of sight. This is how well my eye healed, taken in my one month post-op check-up London Vision Clinic. Lee Bell. This is because contact lens wear can temporarily alter the natural shape of your cornea.

Before your LASIK surgery begins, numbing eye drops are applied to your eye to prevent any discomfort during the procedure. Your doctor may also give you some medication to help you relax. Your eye will be positioned under the laser, and an instrument called a lid speculum is used to keep your eyelids wide open. The surgeon uses an ink marker to mark the cornea before creating the flap.

Cutting Nerves Within the Eye

A suction ring is applied to the front of your eye to prevent eye movements or loss of contact that could affect flap quality. After the corneal flap is created, the surgeon then uses a computer to adjust the excimer laser for your particular prescription.

You will be asked to look at a target light for a short time while your surgeon watches your eye through a microscope as the laser sends pulses of light to your cornea. The laser light pulses painlessly reshape the cornea, although you may feel some pressure on your eye. You'll also hear a steady clicking sound while the laser is operating. LASIK is performed on each eye separately, with each procedure taking only about five minutes.

You may feel a temporary burning or itching sensation immediately following the procedure. After a brief post-operative exam, someone can drive you home.

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LASIK for Correction of Myopia

You cannot drive after LASIK until your eye doctor sees you the following day and confirms your uncorrected vision meets the legal standard for driving. You should expect some blurry vision and haziness immediately after surgery; however, clarity should improve by the very next morning. Your eyesight should stabilize and continue to improve within a few days, although in rare cases it may take several weeks or longer.

LASIK Live Surgery

For most people, vision improves immediately. You may be able to go to work the next day, but some doctors advise at least one day of rest instead. Also, it is usually recommended that you refrain from any strenuous exercise for at least a week, since this can traumatize the eye and affect healing.