The Use of Lidocaine Gel Versus Subconjunctival Xylocaine Injection in Pterygium Excision
Status:
Recruiting
Trial end date:
2024-12-31
Target enrollment:
Participant gender:
Summary
In pterygium excision procedures, the subconjunctival injection of xylocain is regarded as an
uncomfortable and painful step in the procedure. While already being studied in other
ophthalmic procedures such as glaucoma surgery (7), application of topical lidocaine gel is
likely to minimize pain. The gel has a longer surface contact time due to its consistency,
providing not only a longer anesthetic effect, but protecting the corneal surface against
desiccation, when compared to eye drops.
The investigators hypothesize that Ophtesic 2% lidocaine gel is as effective as an anesthetic
in pterygium excision as subconjunctival injection, while providing more comfort during
surgery and less corneal dryness afterwards.
Our goal is to compare both the anesthetic and corneal surface effect of topical 2% lidocaine
gel to subconjunctival injection of xylocaine 2% solution with 0.125 epinephrine in pterygium
surgery:
- Compare the patients pain during and after surgery
- Compare corneal dryness after surgery.
- Evaluate possible secondary events