Health Condition 1: H52- Disorders of refraction and accommodation
Conditions
Interventions
Intervention1: NIL: NIL
Control Intervention1: NIL: NIL
Sponsors
Dr Linsa Kunjumon
Eligibility
Inclusion criteria
Inclusion criteria: 1) Candidate should have a myopia between (-1.5 to 10 D) and astigmatism up to (-4D). 2) With documented stability of refraction, as demonstrated by a change of less than or equal to 1 D of myopia and (-0.5 D) of astigmatism at least 12 months prior to the preoperative examination 3) Patients undergoing customized LASIK (Zyoptix Bausch & Lomb Teneo 317 laser) surgery 4) Candidates with corneal thickness of 500μ and less, Minimal corneal thickness of 470μ and above on Orbscan and calculated residual stromal bed of minimum 300μ for PRK.
Exclusion criteria
Exclusion criteria: 1. Patients undergoing Femto laser-based LASIK surgery. 2. Abnormalities of the cornea (e.g. Keratoconus or other corneal ectasia, thinning, edema, interstitial keratitis, extensive vascularization). 3. Uncontrolled external disease of the eye (e.g. Dry eye, atopy, blepharitis). 4. Previous history of vitreoretinal surgery or any other intra ocular and extra ocular surgery. 5. One eyed patient. 6. Uncontrolled connective tissue or autoimmune disease. 7. Orbital, lid or ocular anatomy that precludes function of the microkeratome. 8. Pregnant or nursing woman.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1.Uncorrected visual acuity (UCVA) 2.Best corrected visual acuity (BCVA) Timepoint: Preoperatively later 1 month and 3 months | — |
Secondary
| Measure | Time frame |
|---|---|
| 1.Contrast sensitivity 2.Higher order aberrations (HOAs) Timepoint: Preoperatively later 1 month and 3 months | — |
Countries
India
Contacts
Public ContactDr Linsa Kunjumon
Aravind Eye Hospital and Post Graduate Institute of Ophthalmology
Outcome results
None listed