Purpose: To investigate outcomes and presenting characteristics for subjects undergoing PARS PLANA VITRECTOMY for ocular trauma. Methods: Retrospective study of 113 patients who underwent PARS PLANA VITRECTOMY for severe ocular trauma at [name deleted to maintain the integrity of the review process] between 1999 and 2018. Data were collected on age, gender, initial and final visual acuity (LogMAR), mode of injury, type of injury, number of surgeries performed, follow-up duration, type of tamponade, presence of phthisis, and retinal detachment. The Birmingham Eye Trauma Terminology System (BETTS) was employed. Results: We identified assault and contusion injuries to be the most common mode and type of ocular injury in our cohort. Furthermore, through follow-up we noted a varied number of operations required by patients presenting with ocular trauma and a statistically significant improvement in visual acuity from 1. 73 ( ± 0. 86) LogMAR to 1. 17 ( ± 1. 03; p <0. 01) LogMAR. A statistically significant difference in final visual acuity was also noted between BETTS classified type of injury groups (p < 0. 01). Notably, only 7. 3% and 8. 2% of patients developed phthisis or a persisting retinal detachment, respectively, during follow-up. Conclusion: Our study demonstrates that ocular trauma requiring PARS PLANA VITRECTOMY can require a varied number of operations with a guarded visual prognosis. However, a small percentage will proceed to develop phthisis following intervention.

Purpose: To report the outcomes of PARS PLANA VITRECTOMY (PPV) and intravitreal phacoemulsification in patients with dropped nuclei/nuclear fragments following complicated cataract surgery.Methods: In this retrospective case series, charts of patients who had undergone PPV and intravitreal phacoemulsification for removal of dislocated nuclei/lens fragments were reviewed. After standard PPV, a conventional phacoemulsification probe with an amputated sleeve was used for grasping and emulsifying the nucleus/nuclear fragments in mid/anterior vitreous cavity. Pre- and postoperative visual acuity, and intra- and postoperative complications were recorded.Results: A total of 22 patients with mean age of 71.1±8.2 years were studied. Mean interval between complicated cataract surgery and PPV was 26.6±36.5 (range: 0-120) days. Patients were followed for a mean of 105.5±57.5 days. Preoperatively, best corrected visual acuity was 2.4±0.6 logMAR which was improved to 1.4±0.6 logMAR at final follow-up (P<0.001). Intraoperative complications included iatrogenic peripheral retinal breaks in three eyes. Postoperative complications consisted of epiretinal membrane formation in one eye, hypotony in one eye, and medically-controlled glaucoma in 2 eyes.Conclusion: In this series, PPV and intravitreal phacoemulsification using a conventional phacoemulsification probe in patients with dropped nuclei/nuclear fragments following complicated cataract surgery resulted in visual improvement without any complications directly attributable to the probe.

Purpose: To determine early intraocular pressure (IOP) changes after PARS PLANA VITRECTOMY and evaluate the related factors.Patients and methods: In a clinical trial, the study was performed on 105 eyes of 105 patients who underwent PARS PLANA VITRECTOMY. The patients were divided into four major groups: silicone oil-injected (63 patients), simple VITRECTOMY (16 patients), sulfur hexafluoride-injected (13 patients), and air-injected (13 patients). Preoperative and six consecutive post operative IOP measurements were done with apPLANAtion tonometer.Results: Considering all patients, mean preoperative IOP was 11.53 mmHg which increased by 8.85 after surgery, and maximum elevation occured 16 hours after the surgery. In the four study groups, mean IOP elevation was 11.94, 3.26, 6.64 and 2.58 mmHg, respectively and maximum IOP was recorded at 2-4, 6-8, 16, 24, 36, and 48 hours postoperatively. Post operative IOP increased to 21 mmHg or more in 66.7% of the patients. Factors associated with post VITRECTOMY IOP elevation included intraoperative silicone oil injection, SF6 injection, scleral buckling and development of fibrin in the anterior chamber postoperatively. Conclusion: IOP elevation is very commonly seen after PARS PLANA VITRECTOMY, especially in silicone oil and SF6-injected patients. The optimal time for detecting the pressure rise differs with the type of substitutes injected at the conclusion of operation. Measuring the IOP in the above conditions is compulsory.

Objectives: This study aimed to estimate the natural course of vitreomacular traction (VMT) disorder during a 6-month follow-up using the high-resolution spectral-domain optical coherence tomography (SD-OCT). In addition, it attempted to evaluate the visual and anatomical outcomes of the patients who underwent a follow-up or VITRECTOMY for VMT syndrome. Materials and Methods: In this prospective study, 45 eyes from 45 patients with VMT syndrome underwent SD-OCT imaging and eye examinations. All the patients were observed for the 6 subsequent months. Further, those patients who demonstrated no spontaneous resolution of adhesion during this period underwent 3 port standard PARS PLANA VITRECTOMY. Two patients were excluded from the study, then all the remaining patients were observed for 12 months. The mean observation period of all the patients was 18 months. Changes in visual acuity (VA) before and after the study were compared between the 2 groups. Results: The mean age of patients was 64. 21 ± 7. 712 years (51-80 years). After 6 months follow-up, 20 patients (44. 45 %) represented the spontaneous release of VTM. Furthermore, mean LogMAR VA improved from 0. 7042 ± 0. 21 (Snellen’ s equivalent of 20/100) to 0. 585 ± 78 (Snellen’ s equivalent of 20/76). Baseline VA was greater than or equal to LogMAR VA of 0. 7 (Snellen’ s equivalent of 20/100) in most of the patients who revealed a spontaneous resolution of VMT after a sixmonth follow-up. Moreover, all the patients with spontaneous release of VMT, indicated improvement in VA compared to the baseline, from mean baseline LogMAR VA of 0. 5650 (Snellen’ s equivalent of 20/73) to 0. 4700 (Snellen’ s 20/59). Finally, the mean baseline LogMAR VA improved from 0. 8435 (Snellen’ s equivalent 20/138) to 0. 7000 (Snellen’ s equivalent 20/100) in VITRECTOMY group. Conclusions: Approximately 44. 5% of the patients demonstrated the spontaneous resolution of vitreoretinal adhesion during the 6-month follow-up. The greater was the initial VA, the higher became the spontaneous separation rate, and eventually a better visual outcome.