Trans P R K In High Myopia

Evaluate refractive results and postoperative complications after
trans-PKR in highly myopic patients

All patients underwent a preoperative ophthalmological examination.
complete including:
Corrected visual acuity
Subjective refraction
Cycloplegic refraction
Measurement of optical correction scope
Slit lamp examination
Tear film examination (BUT)
Pulsed air IOP measurement
Fundus of eye 

 A trans-PKR was carried out in51 eyesof 36 patients with
high myopia
Data were collected prospectively with
a 6-month follow-up
Outcome measures included uncorrected visual acuity,
manifest refraction,pachymetrypost-operative, Haze and others
complications.

: The average age of our series was31.43 years (from 21 to 43 years)
oThe average of the preoperative spherical defect
was -5.8 D (from -4.50 to -8.25 D).

oThe average of the preoperative cylindrical defect
was -1.23 D (from 0 to -3.25 D).
oThe average of the spherical equivalent was -6.43 D (from -6 to -8.5D)
After 3 months, uncorrected visual acuity was
10/10In66%eyes
        -  ≥9/10 in 94% of eyes
Spherical equivalent at 3 months:-0.16+/-0.30
After 6 months, no eyes were lost.
We have 1 case ofhazegrade 1 without any impact on visual acuity

TransPKR is today an alternativesafe and predictable for the treatment of high myopia,
A complete screening exam is mandatory.
It is important to respect the maximum ablation limits, PTA calculation and final corneal curvature limits.
Application of MMC 0.02% after laser ablationexciseis also important and can reduce the risk of haze