In 1981, Rangaswamy Srinivasan working at IBM Research Lab discovered that an ultraviolet excimer laser could etch living tissue in an exact manner with no thermal damage to the surrounding area. He named the phenomenon Ablative Photodecomposition (APD). Srinivasan and his co-inventors underwent tests using the excimer laser and a conventional, green laser to etch organic matter. They found that although the green laser produced rough incisions, damaged by charring from the heat, the excimer laser produced clean, neat incisions. In 1983, Srinivasan collaborated with an ophthalmic surgeon to develop APD to etch the cornea.
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Dr. Christoph Schmid - laser treatment of sight defects
Christoph Schmid specialised in refractive eye surgery and has concentrated on laser treatment of sight defects ... Society ("Deutsche Ophthalmologische Gesellschaft" or DOG). In ...
You may be under treated or over treated. Only a certain percent of patients achieve 20/20 vision without spectacles or contacts. You may require additional surgery, but additional treatment may not be possible. You may still need spectacles or contact lenses after procedure. This may be true even if you only required a very weak prescription before treatment. If you used reading glasses before surgery, you may still need reading spectacles after surgery.
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Laser Eye Risks
For some farsighted people, results may diminish with age. If you are farsighted, the level of improved vision you experience after procedure may decrease with age. This can occur if your manifest refraction (a sight exam with lenses before dilating drops) is very different from your cycloplegic refraction (a eye-sight exam with lenses after dilating drops).
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