Status:
UNKNOWN
Myoring Versus Keraring Implantation for Keratoconus
Lead Sponsor:
Shahid Beheshti University of Medical Sciences
Conditions:
Keratoconus
Eligibility:
All Genders
20-40 years
Phase:
PHASE2
Brief Summary
Various approaches, including surgical and non-surgical management have been proposed for keratoconus. One of the surgical procedures is Intrastromal Corneal Ring implantations that have been designed...
Eligibility Criteria
Inclusion
- keratoconus patients and :
- age between 20 to 40
- corneal thickness\> 380 microns
- mean keratometry between 44 to 60 D
- clear central cornea
- Patients should be discontinued their contact lenses for 3 weeks prior to the exams
- contact lenses in tolerance
- 20/200\<visual acuity \<20/30
Exclusion
- Positive pregnancy test
- Breast-feeding
- History of glaucoma, cataract, vernal and atopic keratoconjunctivitis
- History of previous ophthalmologic surgery, keratorefractive surgery on the operative eye
- Dry eye
- Corneal stromal disorders
- History of herpetic keratitis
- Pellucid marginal degeneration
- Corneal grafts
- Retinal disorders
- Nystagmus and uncooperative disposition
- Neuro-ophthalmologic disorders
- Intraocular pressure \<10 mmHg or \>21 mmHg
- Patients with autoimmune, connective tissue disorders, diabetes and immunosuppressive drugs users
- Hyperopia
Key Trial Info
Start Date :
May 1 2013
Trial Type :
INTERVENTIONAL
End Date :
Estimated Enrollment :
23 Patients enrolled
Trial Details
Trial ID
NCT01869517
Start Date
May 1 2013
Last Update
June 5 2013
Active Locations (1)
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1
Islamic Republic OF Iran
Tehran, Iran