The Vision of the Future

While myopia and hypermetropy are fairly familiar conditions, astigmatism is when the corneas are misre certify to some degree that impairs hatful. This error typically results in blear vision. Presbyopia is a very common condition if non immediately recognizable by name. Presbyopia is age-related refractive error, a condition that submits most people to need corrective lenses at some point past the age of forty. This condition causes an in exponent to focus. At the present time corrective laser centre of attention surgeries correct only myopia, hyperopia, and astigmatism. Despite this condition at the present time, researchers are confident new procedures being developed allow for one day make the need for corrective lenses as a result of aging obsolete. As Dr. Daniel Durrie, director of the Hunkeler inwardness Centers, a chain of eye clinics in the mid-west, maintains "There whitethorn come a time when people will picture back and wonder why we ever hung something on our ears and twist to make our eyes see better" (194+).

Radial keratotomy was invented in 1973, then the only means of surgically repairing refractive errors. Advances in medical technology and the development

There are many successful cases of both PRK and LASIK mathematical operation. In many cases individuals who have undergone the procedure have their accurate vision restored and never again need to wear any run of corrective lenses. LASIK has eclipsed the popularity of other procedures like radial keratotomy and PRK because of its advantageous aspects in comparison. It is a relatively painless operation, recovery is quick, vision is restored quickly, and a second operation within the first year is a simple procedure when fine tuning is required. LASIK surgery has boasted hundreds of thousands of successes. somewhat people see well enough to operate a motor vehicle just a day afterwards having the procedure performed. For eye surgeons the procedure is also much more than advantageous than previous methods of refractive surgery. As Boodman (1999) explains:

Lewis, C. (Jul 1, 1998).

Leaser eye surgery: Is it worth looking into? FDA Consumer, 32, Viewed on Oct. 6, 2003: hypertext transfer protocol://www.elibrary.com, 1-9.

There are two main forms of laser eye surgery. The first is cognize as photorefractive keratectomy (PRK) and the other is known as laser in situ keratomileusis (LASIK). PRK is a less complex procedure than LASIK because it does not require the surgeon to use a scalpel and is primarily performed by the reckoner controlled laser. PRK and LASIK are both outpatient procedures. The PRK procedure "gently reshapes the cornea by removing microscopical amounts of tissue from the outer surface with a cool, computer-controlled ultraviolet communicate of light" (Lewis 1998, 1). The laser beam is amazingly precise with an ability to cut notches in a strand of human haircloth without breaking it. It is a finely tuned instrument much more precise than the most skillful surgeon's hand. Each pulse of the laser can remove 39 millionths of an inch of tissue in 12 billionths of a second, (Lewis 1998, 2).

Neergaard, L. (Jun 3, 2002). Guidelines for eye laser surgery. AP Online, Viewed on Oct. 6, 2003: http:/
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