Abstract: Objective To explore the clinical application effect of the new-type precision temperature-controlled disposable electrocautery pen in hemostasis during pterygium surgery under local anesthesia. Design Case-control study. Participants A total of 400 patients with primary pterygium who underwent surgery at Beijing Tongren Hospital from February 2024 to April 2025. Methods The patients were randomly divided into the electrocoagulation group and the control group, with 200 cases in each group. The electrocoagulation group used a new type precision temperature-controlled disposable electrocoagulation pen for hemostasis, while the control group used an integrated spherical ophthalmic cautery for hemostasis. Intraoperative hemostasis time, operation time, presence of crusting after hemostasis, postoperative subjective symptoms, subconjunctival hemorrhage, and postoperative recurrence rate in the two groups were recorded, compared, and statistically analyzed. Main Outcome Measures Intraoperative hemostasis time, operation time, presence of crusting after hemostasis, postoperative subjective symptoms, subconjunctival hemorrhage, and postoperative recurrence rate. Results The mean hemostasis time in the electrocautery group (33.96±4.56 s) was significantly shorter than that in the control group (116.36±12.49 s) (t=-87.634, P<0.001). The total operative time in the electrocautery group (36.60±5.10 min) was also shorter than that in the control group (39.91±3.63 min) (t=-7.450, P<0.001). Regarding intraoperative eschar formation, the incidence in the electrocautery group (2.00%) was significantly lower than that in the control group (10.50%) (χ2=12.331, P<0.001). Both groups provided satisfactory surgical field clarity, with a clear visual field rate of 97.50% in the electrocautery group and 95.00% in the control group. On the first postoperative day, there were no statistically significant differences between the two groups in terms of subjective symptoms (pain, foreign body sensation, irritation, epiphora), subconjunctival hemorrhage, or the one-year postoperative recurrence rate (all P>0.05). Conclusion The novel precise temperature-controlled disposable electrocautery pen demonstrated reliable hemostatic efficacy in pterygium surgery, effectively reducing both hemostasis time and operative time while minimizing intraoperative eschar formation, without increasing postoperative complications.

Key words: Pterygium/surgery, Disposable electrocautery pen, Hemostasis effect