Evaluation of the Effects of Phenylephrine Hydrochloride 2.5% Eye Drops on the Operation Time and Intraoperative Bleeding in Pterygium Surgery
Abstract
Aim: This study aimed to investigate the effect of preoperative use of phenylephrine hydrochloride 2.5% eye drops on bleeding-related complications and surgical duration in pterygium surgery.
Material and Methods: Fifty patients were randomized into two groups. Group 1 received phenylephrine hydrochloride 2.5% drops at 5 and 10 minutes before surgery; Group 2 did not receive the drops. Preoperative, intraoperative, and postoperative videos and images were captured and analyzed using the ImageJ program for both groups.
Results: Redness decreased from 451.33 ± 25.45 to 268.52 ± 19.23 pixels after phenylephrine instillation, a change not seen in the control group. Six minutes before autograft implantation, the hyperemic area was 268.52 ± 19.23 pixels in the phenylephrine group and 492.22 ± 21.24 pixels in the control group.
The hemostatic effect of 2.5% phenylephrine eye drops lasted until 35 minutes postoperatively.
Therefore, the bleeding rate decreased by 48% in Group 1, while this effect was not observed in Group 2. No significant difference in intraocular pressure was found. Group 1's mean operation time was 7.20 ± 1.12 minutes versus 12.21 ± 1.02 minutes in Group 2. Phenylephrine reduced hyperemia by 45%.
Conclusion: It is thought that using 2.5% phenylephrine hydrochloride eye drops before pterygium surgery may allow for a smoother and faster operation due to its whitening effect on the surgical field.
Keywords
Ethical Statement
References
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Details
Primary Language
English
Subjects
Clinical Sciences (Other)
Journal Section
Research Article
Publication Date
May 24, 2026
Submission Date
May 8, 2025
Acceptance Date
April 15, 2026
Published in Issue
Year 2026 Volume: 16 Number: 2