|
CLASSIC LASIK |
FEMTOSECOND LASIK |
PKR |
TRANS-PKR |
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| 1) Background and age of the technique |
15 years old |
10 years |
30 years old |
30 years (see note 1) |
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| 2) Security profile of the technique |
very good |
very good (see note 2) |
excellent |
maximum |
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| 3) Speed of visual recovery (see note 3) |
the following day |
the following day |
1 week |
3/4 days |
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| 4) Pain during the operation (see note 4) |
weak |
weak |
very weak |
null (no eye contact) |
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| 5) Risk of movement during operation (see note 5) |
may interfere with the operation |
may interfere with the operation |
minimal risk of complications |
no risk (no contact) |
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| 6) Post-operative pain |
eye discomfort for a few hours |
eye discomfort for a few hours |
pain for 2/3 days |
pain 1 to 2 days (especially the 1st night) |
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| 7) Patient with dryness |
Since Lasik is more drying, plan on using hydrating eye drops for 2 months. |
Since Lasik is more drying, plan on using hydrating eye drops for 2 months. |
recommended in case of known dryness (anti-acne treatment) |
recommended in case of known dryness (anti-acne treatment) |
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| 8) According to the profession: | |||||||
| Military Parachute Firefighters |
|
PKR |
or rather transPKR | ||||
| Rolling stock and flight personnel |
rather Lasik or Femtolasik
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| Need for immediate resumption of activity |
rather Lasik
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| Or unable to be absent: |
rather Lasik |
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| Combat sports |
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rather PKR or Trans-PKR |
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| 9) Saccording to the thickness and shape of the cornea | |||||||
| Thin, irregular cornea suspicious |
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rather PKR or especially Trans-PKR
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| 10) according to the visual defect | |||||||
| Myopia of 1 to 3 diopters: |
Favor surface techniques without hood cutting (transPKR) whenever possible |
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| Myopia of 3 to 6 diopters: |
Rather Lasik but it can be transPKR if Lasik is problematic. |
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| Myopia greater than 6 diopters: |
Rather Lasik if possible
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| 11) Hyperopia from 1 to 3 diopters: |
Favor surface techniques without hood cutting (transPKR) whenever possible. |
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| Hyperopia of 3 to 6 diopters: |
Rather Lasik with a preference for femtosecond if possible. |
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| 12) Astigmatisme de 1 à 3 dioptries: |
Favor surface techniques without hood cutting (transPKR) whenever possible. |
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| Astigmatism of 3 to 6 diopters: |
Rather lasik with a preference for femtosecond if possible. |
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| 13) Presbyopia |
To be discussed on a case-by-case basis, with preference for Lasik and Femto, with transPKR remaining an option suited to presbyopia. |
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| 14) Deadline in case of retouching |
2/3 months for Lasik |
4/6 months for PKR and transPKR |
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*Note 1: Although trans PKR has only been offered by Schwind for a few years, its experience is comparable to that of PKR, since its principle of action is identical to PKR.
*Note 2: In our opinion: the safety profile of Femtosecond Lasik is not superior to that of classic Lasik, which is excellent, provided that high-performance equipment is used and in the hands of experienced operators.Some sites present Femtolasik in a somewhat exaggerated way as a 100/100 laser operation, which is partly true because the flap is cut using a laser, but which can also be misleading because this operation involves a direct intervention phase on the eye with the installation of a device that presses on the eye and then a mechanical intervention phase with lifting and repositioning of the flap.
Recent studies have highlighted specific adverse effects of certain femtos, which we were among the first to describe. That said, femto remains interesting and even essential in certain indications for particular corneas.
*Note 3: This is of course an average trend: in how many days can the person resume their professional activities or daytime driving (except for road or flight personnel, firefighters, etc.).
*Note 4: This is of course an average that can vary depending on the sensitivity of the subjects and which is proportional to the degree of myopia treated.
*Note 5: These are patients who are very anxious and resistant to the idea of having their eye touched or "tinkered with", and who, because of this apprehension, are at risk of having uncontrollable eye movements during the operation.
In these cases, use non-contact Trans-PKR techniques.
Find below videos on PKR, Lasik or Trans PKR:
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