Refractive error requiring refractive surgery PRK TransPRK
Conditions
Interventions
trans epithelial PEK using excimer laser,PRK after Manual epithelial removal
Experimental Procedure/Surgery,Active Comparator Procedure/Surgery
tPRK,mPRK
Sponsors
Armed force medical services
Eligibility
Sex/Gender
All
Age
21 Years to 45 Years
Inclusion criteria
Inclusion criteria: 1. aged 21 to 45 years 2. Normal Slit lamp examination, with no appearing pathology. 3. Spherical equivalent power of -1.0 to -5.0 diopters. 4. Stable refraction with spectacles for the last 12 months before surgery. 5. Normal Pentacam parameters with no suspicious ectasia. 6. The thinnest pachymetry should not be less than 500 microns. 7. The final residual stromal bed thickness should be 400 microns and above including the original epithelium 8. best corrected distance visual acuity of 0.8 Snellen chart or better for each eye.
Exclusion criteria
Exclusion criteria: 1. Eyes with any pre-existing corneal layer pathology (keratoconus, ocular inflammation, glaucoma, past ocular history of any surgery or posterior segment pathology). 2. Medication history of (isotretinoin, amiodarone, anticoagulants, HRT, antihistamine, sumatriptan).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pain Day 1, 2, 3, 4, and 8 Pain scale 0-10,Photophobia Day 8, and 1, 3, 6 months Pain scale 0-10,Corneal epithelial healing Day 1, 4 and 8 Slit lamb examination, percentage out of 100% compared to initial defect | — |
Secondary
| Measure | Time frame |
|---|---|
| Distance uncorrected vision Day 8, and 1, 3, 6 months Snellen Chart ,Spherical aberration Pre op, and 1, 3, 6 months Pentacam,Corneal densitometry Pre Op, 1, 3, 6 months Pentacam | — |
Countries
Oman
Contacts
Public ContactMojahid Al Kalbani
Oman medical speciality board
Outcome results
None listed