nitinol and Eye-Foreign-Bodies

To evaluate the efficiency and safety of using an intraocular foreign body forceps with two nitinol loops at its tip to capture and chop dropped nucleus (DN) during vitrectomy as an alternative method and to evaluate the outcomes and complications of this surgical technique.. The eyes that underwent 23-gauge vitrectomy with removal of DN using nitinol forceps with a minimum follow-up time of 1 year are included in this study. The efficiency of surgical technique and anatomical and functional results with complications is recorded.. Nine patients with a mean age of 73.11 ± 2.15 years were included in this study. The mean time between DN and vitrectomy was 7.67 ± 3.74 (5-14) days. In all eyes, DN was easily chopped and removed with aspiration. Argon laser photocoagulation was performed in 4 eyes (44.44%) during surgery. All eyes were followed up for a mean time of 21.11 ± 12.36 (12-48) months. The mean preoperative best-corrected visual acuity increased significantly during the postoperative follow-up ( P < 0.001). No complications related to the cataract surgery or DN removal were observed.. Surgical removal of DN with the help of these forceps with nitinol loops is found to be safe and effective in this study. This method avoids ultrasonographic energy and enables 23-gauge vitrectomy without a fragmatome.

Topics: Aged; Eye Foreign Bodies; Humans; Postoperative Complications; Retrospective Studies; Surgical Instruments; Treatment Outcome; Vitrectomy

To describe a novel technique to use the NGage® Nitinol Stone Extractor for large IOFB extraction.. We conducted a retrospective case series study by reviewing the data of 4 eyes with retained large IOFB extracted with the use of the NGage® Nitinol Stone Extractor. The study was conducted in a single tertiary referral center on four eyes of four patients with large retained IOFB. Studied eyes were treated by pars plana vitrectomy (PPV) and IOFB extraction by using the NGage® Nitinol Stone Extractor through a limbal incision.. Four eyes of four male patients with large Retained IOFB were included in the study. The nature of the IOFB was metallic in 2 eyes, glass in 1 eye or ceramic 1 eye. All the IOFB were removed from a limbal wound. Silicone oil tamponade was required in 3 eyes. Two eyes required reoperation. At 6 months postoperative, the final visual acuity using Snellen chart ranged between PL and 0.1.. The NGage® Nitinol Stone Extractor can be a useful tool for the extraction of the large retained IOFB.

Topics: Alloys; Eye Foreign Bodies; Eye Injuries, Penetrating; Humans; Male; Retrospective Studies; Vitrectomy