Trials / Unknown
UnknownNCT05812508
Comparison Between Bare Scleral Technique and Conjunctival Auto-graft on Corneal Topography After Pterygium Surgery
A Comparative Study Between Bare Scleral Technique and Conjunctival Autograft on Corneal Topography After Pterygium Surgery
- Status
- Unknown
- Phase
- —
- Study type
- Observational
- Enrollment
- 30 (estimated)
- Sponsor
- Sohag University · Academic / Other
- Sex
- All
- Age
- —
- Healthy volunteers
- Not accepted
Summary
Aim of the work: To study the corneal topographic pattern changes in patients who have pterygium excision by two surgical techniques (bare sclera, conjunctival autograft).
Detailed description
Pterygium is one of the common ocular surface disorders , it's is an elastotic triangular fibro-vascular tissue covered by conjunctival epithelium that spreads over the cornea. Pterygium causes differences in curvature \& power across the cornea . The prevalence of pterygium varies from 1.1% to 53% globally in different environmental conditions. Risk factors include;UV radiation, geographical latitude near to the equator, outdoor activity , aging, male, and dusty environment. Pterygium excision is important in patients suffering from blurred vision due to astigmatism . Surgical techniques include ; bare sclera excision, conjunctival autograft, conjunctival transpositional flap, and amniotic membrane grafting. Pterygium excision increases in the mean central corneal curvature \& reduces astigmatism that leads to improvement in visual acuity. Corneal topography is a gold standard in corneal pathology follow-up. Corneal topography is a computer assisted diagnostic tool that creates a three-dimensional map of the surface curvature of the cornea. Corneal topography produces a detailed, visual description of the shape and power of the cornea. In this study , corneal topography is used to detect how does corneal curvature change after excision of pterygium .
Conditions
Interventions
| Type | Name | Description |
|---|---|---|
| DEVICE | corneal topography | corneal topography before and after pterygium surgery by two techniques bare scleral and conjunctival autograft |
Timeline
- Start date
- 2023-04-20
- Primary completion
- 2023-08-01
- Completion
- 2023-10-01
- First posted
- 2023-04-13
- Last updated
- 2023-04-13
Source: ClinicalTrials.gov record NCT05812508. Inclusion in this directory is not an endorsement.