An interventional study of Conjunctival Transpositional Pterygium Surgery in Pterygium of the Conjunctiva and Cornea, sponsored by Zahedan University of Medical Sciences. Recruiting at 1 site in Iran. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-15.
Sponsored by Zahedan University of Medical Sciences · Not applicable, Interventional, and Treatment
This prospective single-arm interventional study evaluates the recurrence rate and functional outcomes following conjunctival transpositional pterygium surgery without bare sclera formation. The technique involves mobilization and transposition of the pterygium tissue while preserving Tenon's layer and avoiding adjunctive therapies.
219 studies on the registry are indexed under Corneal Diseases; 43 are open to participants now.
This study's planned enrollment of 70 is above the median of 40 across 132 interventional studies indexed under Corneal Diseases.
Browse Corneal Diseases studies →Zahedan University of Medical Sciences is the lead sponsor of 15 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Procedure: Conjunctival Transpositional Pterygium Surgery
A conjunctival incision was created at the upper and lower limbus to allow adequate tissue mobilization. The pterygium tissue is dissected off the corneal surface without complete excision or creation of a bare sclera defect. The fibrovascular tissue is mobilized and transposed inferiorly within the subconjunctival plane and secured with absorbable sutures. Tenon's tissue is preserved, and no adjunctive therapy is used.
Pterygium Recurrence
Recurrence is defined as fibrovascular regrowth toward the cornea or surgical failure.
Time frame: 12 months
Visual Acuity
Change in visual acuity measured in logMAR units.
Time frame: 12 months
Refractive Astigmatism
Change in refractive astigmatism measured as cylindrical power in diopters.
Time frame: 12 months
Plan to share: Undecided
No publications or documents are linked to this record.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Zahedan University of Medical Sciences