Surgical outcomes of 23-gauge vitrectomy for the management of lens fragments dropped into the vitreous cavity during cataract surgery

摘要

Purpose To assess the clinical features and surgical outcomes of 23-Gauge (G) vitrectomy for lens fragments dropped into the vitreous during cataract surgery. Methods A retrospective, non-comparative, interventional case series at a single medical center. The medical records of 45 eyes from 45 consecutive patients who were referred to our hospital for surgical retrieval of phacoemulsification dropped lens fragments and who underwent 23-G vitrectomy were retrospectively reviewed. Data pertaining to patient demographics, pre- and post-operative Snellen visual acuity, and postoperative complications were recorded. Factors associated with dropped lens fragments were also examined. Results Mean patient age was 68.18±11.47years. The preoperative and postoperative mean logarithm of minimum angle of resolution (logMAR) visual acuity was 1.91±0.59 (Snellen equivalent 0.06±0.15) and 0.42±0.51 (Snellen equivalent 0.54±0.31), respectively. Forty-two eyes (93.3%) had dislocated lens fragments <50% of the total lens size. Two eyes (4.4%) had a large and hard lens nucleus, which necessitated the use of a 20-G fragmatome to efficiently and completely remove the lens material. At the final examination, 30 eyes (66.6%) had a visual acuity better than 20/40. Post-vitrectomy complications included elevated IOP for at least 3months ( n =5 eyes, 11.1%), intraocular lens dislocation ( n =2 eyes, 4.4%), and cystoid macular edema ( n =1 eye, 2.2%). No cases of postoperative endophthalmitis or retinal detachment were observed. Conclusions A 23-G vitrectomy is safe and efficient for the surgical management of dropped lens fragments following cataract surgery.