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Dry Eyes After Lasik and All-Laser Lasik
Dry eye prevention techniques to use with Lasik, All-Laser Lasik,
PRK, LASEK, and Epi-Lasik.
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Lasik and All-Laser Lasik may induce dry eye symptoms during
the normal six month healing period.
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Dry Eyes after
Lasik is a common condition during the immediate recovery
period. If you have dry eyes before conventional or custom
wavefront Lasik,
All-Laser Lasik,
PRK,
LASEK, or
Epi-Lasik, you may not be excluded as a candidate for
refractive surgery, but it is a condition that you must
report to your doctor. Pre-existing dry eyes needs to be evaluated,
treated, and resolved before surgery.
This article is about why dry eyes occur and how to prepare
before surgery. A related article is
Lasik dry eye treatment.
Tear Quantity, Tear Quality
Two popular methods to test for dry eyes is a
Tear Break-Up Test (TBUT) to determine tear quality and
a
Schirmer test to determine tear quantity. Dry eye treatment
will depend upon the cause and severity of the dry eyes. Dry
eyes is a medical condition and treatment would normally be
covered under by major medical insurance plans.
Lasik Induced Temporary Dry Eyes
It is common to experience dry eyes for a short period after
Lasik, All-Laser Lasik and sometimes PRK and its cousins LASEK
and Epi-Lasik. Virtually everyone who has Lasik or All-Laser
Lasik will experience dry eyes, but the important issue is to
what degree and for how long.
For the vast majority of refractive surgery recipients, the
degree of dry eye symptoms is not significant enough to cause
difficulties. Even those who do have some trouble most often
find the dry eye symptoms resolve within the normal six-month
healing period. For an unfortunate few patients, Lasik induced
dry eyes is a long-term complication that, although manageable,
may be very disruptive.
There are many techniques to reduce the probability of dry
eyes being induced by surgery, but most are the responsibility
of the doctor. Prevention of Lasik related dry eyes is primarily
focused on proper patient selection and treatment of pre-existing
dry eye prior to surgery.
Drowning In Artificial Tears
There are many techniques to treat dry eye. The most common
are preservative-free artificial tears, lubricating gel,
punctal
plugs, Restasis, and flax seed oil supplements. The technique
best suited depends upon the exact nature of the tear deficiency
and underlying cause. There are many types of
artificial tear eye drops for slightly different purposes.
Less Dry Eye With Surface Ablation
Although PRK, LASEK, and Epi-Lasik may induce dry eye symptoms,
Lasik and All-Laser Lasik seem to be the more commonly associated
with dry eyes. This is partly because the Lasik techniques are
more disruptive to the corneal nerves than PRK and LASEK. For
this reason, patients with preexisting dry eyes may find PRK,
LASEK, or Epi-Lasik a better choice. Other techniques such as
CK,
Intacs,
RLE, and
P-IOLs only marginally disrupt the corneal nerves, but have
their own limitations. Whatever the surgery of choice, the less
the corneal nerves are disrupted, the faster the nerves recover
and normal tear function returns.
Be sure to discuss any dry eye problems (before or after
surgery) with your doctor.
If you are ready to choose a doctor to be evaluated for conventional
or custom
wavefront
Lasik,
All-Laser Lasik,
PRK,
LASEK,
Epi-Lasik,
NearVision CK,
RLE, or any
refractive surgery procedure, we highly recommend you consider
a doctor who has been evaluated and certified by the USAEyes
nonprofit organization. Locate a USAEyes Evaluated & Certified
Lasik Laser Eye Surgery Doctor.
If this article did not fully answer your questions, use our
free
Ask Lasik Expert patient forum.
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Current Lasik Dry Eye Medical Journal News...
Five-year outcome of LASIK for myopia.
Five-year outcome of LASIK for myopia.
Ophthalmology. 2008 May;115(5):839-844.e2
Authors: Kato N, Toda I, Hori-Komai Y, Sakai C, Tsubota K
PURPOSE: To investigate the efficacy and safety of LASIK over a 5-year postoperative period. DESIGN: Observational case series. PARTICIPANTS: We examined 779 eyes in 402 patients with myopia or myopic astigmatism who underwent LASIK to correct their refractive errors and received regular postoperative assessments for 5 years. METHODS: Postoperative examinations were performed 1 day; 1 week; 1, 3, and 6 months; and 1, 2, 3, 4, and 5 years after LASIK surgery. MAIN OUTCOME MEASURES: We evaluated changes in uncorrected visual acuity (UCVA) (logarithm of the minimum angle of resolution [logMAR]), manifest refraction, best-corrected visual acuity (BCVA) (logMAR), intraocular pressure, corneal thickness, corneal endothelial cell counts, and complications. RESULTS: Preoperative UCVA of 1.27 improved to -0.03 at 1 day after surgery and -0.08 at 1 month and revealed minimal but significant decreases thereafter. Postoperative manifest refraction was also improved by surgery, showing minimal but significant regression after 1 year. Final BCVA loss was seen in 10 eyes of 7 patients; in 7 cases, there were obvious reasons such as the progression of cataracts in 3 eyes, epithelial disintegrity due to dry eye in 2 eyes, irregular astigmatism due to flap striae in 1 eye, and age-related macular dystrophy in 1 eye. Intraocular pressure and corneal thickness decreased by 4.0 mmHg and 76.9 microm, respectively, due to surgery, but remained stable throughout the follow-up period. Corneal endothelial cell counts (2689.0+/-232.9 cells/mm(2) before surgery) showed a statistically significant decrease at 5 years after surgery (2658.0+/-183.1 cells/mm(2); 1.2% loss for 5 years), likely within the range due to physiological age-related loss. No serious, vision-threatening, irreversible complication such as keratectasia or progressive endothelial cell loss was observed. CONCLUSION: LASIK surgery is an effective and safe procedure for correcting myopia/myopic astigmatism as long as inclusion and exclusion criteria are strictly respected. However, minimal regression occurred during the 5-year investigative period.
PMID: 17900692 [PubMed - indexed for MEDLINE]
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Dry Eye
Last updated
Friday, April 25, 2008
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