Efficacy and safety of high-intensity focused ultrasound cyclo-plasty in glaucoma

Abstract

Background High-intensity focused ultrasound cyclo-plasty (UCP) is a recently developed glaucoma surgery. This study collected and analysed the clinical data of patients who underwent UCP to observe the efficacy and safety of this surgery in Chinese glaucoma patients. Methods This was a retrospective study. The clinical data of all the patients who underwent UCP at Affiliated Foshan Hospital, Southern Medical University, were collected and analysed to evaluate the efficacy and safety of UCP. The main outcome measure was intraocular pressure, and the secondary outcome measures were best corrected visual acuity (logMAR) and complications. Results Fifty-eight patients (61 eyes) were recruited for this study. IOP was dramatically decreased during the 12 months after UCP (p<0.05). The median IOP reduction during the 18 months post-procedure was more than 30%. The greatest reduction was at 1 month post-UCP (60.86%). The qualified success rate was more than 60% during the 18-month follow-up (Fig. 1). Poor follow up was found after 6-month post-UCP. The highest success rate was obtained at 7 days post-UCP (94.55%). No statistically significant decrease in BCVA in the vison group was observed at the follow-up visits, except for 1 day post-UCP. There was a statistically significant reduction in the use of IOP lowering medications during the 6 months post-UCP. No severe complications occurred. Conclusion UCP is a safe and effective procedure for primary and refractive glaucoma at least during the 6 months post-UCP procedure. Studies with longer follow-up time and better follow up are needed to further confirm the long-term efficacy and safety of UCP in Chinese glaucoma patients.

Effects of Ultrasound Cycloplasty in Glaucoma Patients:6-Month Results From a Prospective Clinical Study

“…Chen and Guo treated 61 eyes (7 POAG, 17 PACG, 26 NVG, 11 secondary glaucoma) with UCP and followed up for 18 months and found that IOP reduction was more than 60% at 1 month after UCP, and more than 30% 18 months after UCP, with a success rate of 94. 55% at 7 days after UCP, and more than 60% 18 months after UCP [13]. We did a correlation analysis and found that that there was a signi cant linear correlation between the decrease in postoperative intraocular pressure and preoperative intraocular pressure.…”