Evaluation of Efficacy and Safety of Topical 1% Medroxyprogesterone in the Corneal Epithelium Healing After PRK

Photorefractive Keratectomy Clinical Trial

Official title: Evaluation of Efficacy and Safety of Topical 1% Medroxyprogesterone in the Corneal Epithelium Healing After Photorefractive Keratectomy in Feiz Hospital, Isfahan, 2023

Status Completed

Clinical Trial Summary

In this clinical trial, it is decided that 30 patients who are candidates for photorefractive keratectomy will receive a drop of prepared medroxyprogesterone randomly in one of their eyes, in addition to the routine antibiotic drop that is normally placed at the end of the procedure. Afterward, a bandage contact lens will be applied to both eyes, and the patients will receive routine post-procedure drops, including betamethasone and ciprofloxacin drops for both eyes. On the first, second, third, fourth, and fifth days after the operation, the patients will be examined, and the size of the epithelial defect in both eyes will be assessed using a slit lamp device. Additionally, the patients' pain levels in each eye will be evaluated using a questionnaire."

The main question is: General purpose:

Determining the efficacy and safety of 1% topical medroxyprogesterone in repairing the corneal epithelium after photorefractive keratectomy (PRK)

Clinical Trial Description

Patients who have referred for refractive surgery to correct myopia and myopia-stigmatism first undergo complete examinations that are required before the procedure, which includes the following examinations:

1. manifest and cycloplegic refraction

2. UCVA and BCVA

3. Pentacam(topographic imaging)

4. Examining the anterior and posterior segments of the eye with a slit lamp device Placed. Then, on the day of the surgery, in the refractive surgery operating room, the eyes are prepared . Anesthetizing drops of enstocaine are poured into the eyes. After removing the corneal epithelium, laser ablation is performed using the Technolas Teneo 317 device, and then mitomycin C is placed on the cornea based on the amount of ablation and then washed. At the end of the procedure, a contact lens bandage is placed on the eyes, and then a drop of the antibiotic ciprofloxacin is poured into the eyes. At this stage, a 1% medroxyprogesterone drop will be randomly poured into one of the eyes. After discharge, ciprofloxacin and betamethasone drops are routinely prescribed for the patient every 4 hours, and the patient returns for examination on the day after the operation and on the third and fifth days after the operation. (7) In each visit, the size of the corneal epithelial defect is measured by an ophthalmologist with a slit lamp examination as the largest length of the defect and the largest perpendicular length in millimeters. (2) Regarding the patient's pain and discomfort, a questionnaire is used to score the pain intensity by the patient (0: no pain, 1: mild pain, 2: moderate pain, 3: severe pain, 4: unbearable pain). (8) and the checklist includes information: pain intensity, optical size Defect, gender, age, ablation rate, and refractive error will be checked and recorded.

The patient and the examiner do not know about the eye in which medroxyprogesterone drops were used at the end of the procedure.

Medroxyprogesterone drops are made by a pharmacologist under sterile conditions and delivered the day before the operation. ;

Related Conditions & MeSH terms

• Photorefractive Keratectomy

• NCT number: NCT05973253
• Study type: Interventional
• Source: Isfahan University of Medical Sciences
• Status: Completed
• Phase: Phase 2/Phase 3
• Start date: April 21, 2023
• Completion date: July 6, 2023