Qualified medical treatments abroad
History
from
Wikipedia, the free encyclopaedia
The LASIK technique was made possible by Dr Jose Barraquer (Colombia), who around 1960 developed the first microkeratome, used to cut thin flaps in the cornea and alter its shape, in a procedure called keratomileusis. This procedure was developed and pioneered by the world-leading Barraquer Clinic, based in Bogotá, Colombia.
LASIK surgery was developed in 1990 by Dr. Lucio Buratto (Italy) and Dr. Ioannis Pallikaris (Greece) as a melding of two prior techniques, keratomileusis and photorefractive keratectomy. It quickly became popular because of its greater precision and lower frequency of complications in comparison with these former two techniques.
In 1991, LASIK was performed for the first time
in the United States by Drs. Stephen Brint and Stephen Slade. The same year,
Drs. Thomas and Tobias Neuhann successfully treated the first German LASIK
patients with an automated microkeratome.
Possible complications
Some complications of PRK include:
• Long healing period
• Pain
• Glare, halos, or starburst Aberrations
• Under- or over-correction
• Recurrence of myopia
• Increased intraocular pressure
• Corneal haze
• Scarring
• Reduced best corrected visual acuity
• Reduced acuity in low light
PRK may be performed on one eye at a time to
assess the results of the procedure and ensure adequate vision during the
healing process. (Note: The Food and Drug Administration (FDA) recommends a
3-month period before a second PRK surgery.) Activities requiring good
binocular vision may have to be suspended between surgeries and during the
sometimes extended healing periods.
A few Post-PRK patients have complained of glare, halos, and starburst
aberrations, which may be the result of postoperative corneal haze that may
develop during the healing process. Using modern lasers as of the year 2005,
this is quite rare after 6 months but reportedly, symptoms have occasionally
lingered longer than a year in some cases.
Predictability of the resulting refractive correction after healing is not
totally exact, particularly for those with more severe myopia. This can lead
to under/over-correction of the refractive error. In the case of the
over-correction, premature presbyopia is a possibility.
In 1 to 3% of cases, loss of best corrected visual acuity (BCVA) can result,
due to decentered ablative zones or other surgical complications. (Note:
Loss of BCVA is reportedly 5 to 15x more likely with PRK than that resulting
from the use of extended wear contacts.) PRK results in improved BCVA about
twice as often as it causes loss. Decentration is becoming less and less of
a problem with more modern lasers using sophisticated eye centering and
tracking methods.
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