CompletedNot Applicable

Preoperative and Postoperative Refractive and Topographic Evaluation in Patients With Primary Pterygium: Comparison of Two Surgical Techniques

78 participantsStarted 2013-04-01

Plain-language summary

This study evaluated changes in refractive status and corneal topography before and after surgical treatment of primary pterygium. Patients undergoing pterygium excision were treated with either conjunctival autograft or amniotic membrane transplantation. Visual acuity, refractive error, and corneal topographic parameters were assessed before surgery and after postoperative follow-up to compare the effectiveness of both surgical techniques in restoring corneal optics and improving visual outcomes.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Adults aged 18 years or older. * Diagnosis of primary nasal pterygium in one or both eyes. * Pterygium extending at least 1 mm onto the cornea. * Candidate for surgical treatment and willing to undergo pterygium excision. Exclusion Criteria: * Corneal scars. * Corneal ectatic disorders. * History of ocular trauma. * Previous ocular surgery. * Cicatrizing ocular surface disease. * Cataract or any other ocular condition that could affect visual function.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change in Corneal Topographic Astigmatism

Timeframe: Baseline and 12 months after surgery

Trial details

NCT IDNCT07742995

SponsorInstituto de Oftalmología Fundación Conde de Valenciana

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2015-03-01

View on ClinicalTrials.gov More Primary Pterygium trials