INDICATIONS OF EACH TECHNIQUE
- Radial keratotomy : : Myopia from -1 to -3 diopters
- PRK or Lasek : Myopia from -1 to -3 diopters, astigmatism from -1 to -3 diopters
- TRANS PRK : Myopia, hyperopia and astigmatism from +/- 1 to +/- 5 diopters
- Lasik surgery. and Femtolasik :
- High Myopia : -1 to -10 diopters
- Astigmatism : +/- 1 to +/- 5 diopters
- Hyperopia : + 1 to + 5 diopters
- AberrometryWavefront Customized treatment by aberrometry and Ultra Thin Lasik :
- Myopia: -1 to -10 diopters
- Astigmatisme: -1 à -6 dioptries
- Significant optical aberrations
- large pupillary diameter in dim light
- Indication to enhance visual acuity
- Thin cornea
Particularities of each technique
- RK, PRK, Lasek and Lasik can induce a regression or a postoperative under-correction of the ablation profile due to individual variability of the human corneal tissue.
- In 4 to 5% of cases, a free retreatment is necessary (according to results from Doctor Assaf). Retreatment is less frequent with customized treatment by aberrometry, estimated from 2% to 3%.
- Retreatment for over and under correction after RK and PRK can be performed by PRK and LASIK.
- Retreatment following Lasik is always done by Lasik
Inclusion criteria for refractive surgery
- Age : > 19 ans
- High Myopia, astigmatism or hyperopia stable for more than 2 years
- No ocular disease such as: keratoconus, evolutive glaucoma,
chronic herpetic infection…
- No auto-immune disease : lupus, scleroderma …
- No uncontrolled ocular diabetes
- High motivation: professional, aesthetic, sportive...
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