 Laser Vision Correction uses a laser called an excimer laser
to resculpt the cornea of the eye. In the United States, laser vision correction
received approval from the FDA in October 1995. There are a number of different laser
systems that have received approval from the FDA for laser vision correction surgery.
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Laser Beam
- Seven beam scanning array with seven small rotating beams,
adjustable 0.65mm to 6.5mm, capable of different shapes.
LASIK for Nearsightedness / Astigmatism
- Approved to correct 0.0 to -14.0 diopters of near-sightedness with or without up to -5.0
diopters.
- Patients should be at least 21 years old for treatment of astigmatism or high
near-sightedness.
PRK for Farsightedness
- Approved to correct farsightedness between +1.0 and +6.0D with no more than 1.0 D of
astigmatism in persons who are 21 years of age or older.
PRK for Farsightedness / Astigmatism
- Approved to correct farsightedness up to +5.0 diopters and up to
+4.0 diopters of astigmatism.
www.visx.com
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Laser Beam
PRK for Nearsightedness/Astigmatism
- Approved to correct -0.75 to -13.0 diopters of nearsightedness.
- Approved to correct -1.00 to -8.00 diopters of nearsightedness with -0.50 to -4.00
diopters of astigmatism.
- Correction of hyperopia is under clinical study.
www.nidek.com
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- Laser Beam - Broad beam laser with optical zone to
6.5 mm. Ablatable disc technology for astigmatism correction.
- LASIK - Myopia/Astigmatism - Approved to correct 0.0 to -14.0 diopters
of nearsightedness with or without astigmatism in the range of -0.5 to -5.0 diopters in
patients 18 years or older.
- Hyperopic PRK - Approved to correct +1.5 to +4.0 diopters of
farsightedness with astigmatism less than 1.0 diopters in patients 21 years or older.
www.sum-tech.com
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Laser Beam
- Small spot scanning beam <1mm
LASIK for Nearsightedness / Astigmatism
- Approved to correct -1.0 to -9.0 diopters of nearsightedness with up to
-3.0 diopters
of astigmatism.
- Patients should be 21 years of age or older.
LASIK for Farsightedness / Astigmatism
- Approved to correct up to +6.0 diopters of farsightedness with up
to -6.0 diopters of astigmatism.
- Patients should be 21 years of age or older.
PRK for Nearsightedness/Astigmatism
- Approved to correct -1.0 to -10.0 diopters of nearsightedness with up to -4.0 diopters
of astigmatism.
- Patients should be 21 years of age or older.
www.ladarvision.com
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Laser Beam
- 2mm flying spot laser beam
Nearsightedness/Astigmatism
- Approved to correct -1.0 to -7.0 diopters of nearsightedness with up to
-3.0 diopters
of astigmatism.
- Patients should be 21 years of age or older.
www.bausch.com
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Laser Beam
- 1mm low energy flying spot laser
PRK for Nearsightedness
- Approved to correct -1.0 to -6.0 diopters of nearsightedness with
less than or equal to -1.0 diopters
of astigmatism.
- Patients should be 21 years of age or older.
www.lase.com
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