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Infection is very rare with RK, PRK and LASIK.
However, late
infections (many months to
years) have been reported with incisional techniques such as
RK. Corneal
haze and scarring
in the area of the cornea treated by the laser is more common
with PRK and rare with LASIK. Glare and haloes or
starburst light patterns occur commonly in the early post-operative
period following any refractive procedure. As the cornea heals,
these night vision problems generally fade or disappear altogether
(1-2months). Irregular
surface (irregular astigmatism)
can result from an initial irregular ablation pattern, a laser
pattern not centered over the cornea, or poor healing.
Contact lens
wear may be necessary to
visually correct the problem, although fitting a contact can
be more difficult following refractive procedures due to the
altered shape of the cornea.
Most serious complications
of LASIK are associated with creation of the corneal flap. A thin or bad flap can occasionally occur. When this happens,
the flap is repositioned and allowed to heal for several months.
Most patients can then be retreated, however permanent corneal
scarring can result. The flap occasionally becomes displaced
(usually in the first 48 hours) and then must be repositioned.
Folds can occur in the flap, making it necessary to "iron"
them out. Other complications have been reported and discussion
of the potential risks of surgery with your surgeon is an important
part of your consultation visit. |
