FARSIGHTED LASIK
After the refractive surgery of 20 minutes you will experience perfect vision but it is not in the case of people suffering with hyperopia.
Hyperopia is much more difficult to predict and to correct than myopia (nearsighted, shortsighted) vision. Hyperopic correction is usually like to regress at a greater percentage than myopic correction. But it is not easy to correct Hyperopia with astigmatism. Hyperopia correction of more than about 3.00 diopters is carried out with conventional or custom wavefront Lasik, All-Laser Lasik, PRK, LASEK, LTK, and CK is not easy to correct without inducing additional problems.
Hyperopic correction can be done with conventional ablation as well as with wavefront-guided ablation. To correct myopic problem the technique is very simple. A laser removes tissue in the center of the cornea to make it flatter and the centre of the cornea bulges outward. LTK and CK are the two methods use to correct Hyperopic. Laser and radio wave energy apply as a ring of dots on the outside edges of the cornea and due to it the corneal tissue around the dots shrink. As the corneal shrinks, the center of the cornea bulges outward.
The excimer laser such as Lasik, All-Laser Lasik, PRK, LASEK, and Epi-Lasik correct hyperopic, the cornea is reshaped by removing a ring of tissue around the outer edge of the cornea. So to thin the outer ring and to thicken the center of cornea it gives the effect of a bulge outward in the center.
It will be very difficult to perform the all techniques well because the bulging may not be centered or spherical, causing regular or irregular astigmatism. The cornea nature has tendency to regress back towards its original shape. LTK tends to regress quite quickly but CK regresses slower than LTK but it is believed to be a temporary fix. Lasik, All-Laser Lasik, PRK, LASEK and Epi-Lasik hyperopic correction is likely to retreat but quite at slow rate and will usually stabilize long before full regression back to preoperative levels
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Having all these technical foibles hyperopic correction results are successful. The hyperopes cannot see very well at any distance. The person with presbyopic hyperopes has more advantage because before presbyopia, the natural lens can somewhat "focus around" the hyperopia. When you are presbyopic, you get hit with the full effect of the hyperopia so the presbyopic hyperopes are satisfied with the surgery.
To correct hyperopic correction by reshaping the cornea the techniques of P-IOL and RLE the lens based techniques are better than it. These techniques have boundation and enable to correct astigmatism, but should be considered as an alternative to Lasik, All-Laser Lasik, PRK, LASEK, Epi-Lasik, CK, or LTK.