Material and Methods: 144 eyes that had undergone 25 G PPV in our clinic were included in the study. Postoperative intraocular pressures, visual acuities, intraoperative and postoperative complications were noted.

Results: 144 eyes of 68 males (48.3%) and 70 females (50.7%) were studied. The mean age of the patients was 59.28±14.47 (12-84) years. The 25 G sutureless technique was performed in all eyes. There was no intraoperative complication. The mean follow-up was 10.16±6.3 (3-25) months. The mean visual acuity decreased significantly on the postoperative 1st day and 1st week and increased on the 1st month and last visit. The mean intraocular pressure decreased significantly on the postoperative 2nd hour, 1st day and 1st week but there was no difference on the 1st month and last visit. Postoperative hypotony (<10 mmHg) was seen in 41 (28.5%) eyes on the 2nd hour, 38 (26.4%) eyes on the 1st day and 15 (10.4%) eyes on the 1st week. During follow-up, 11 diabetic eyes had postoperative vitreus hemorrhage resolving in one week without any treatment. A recurrent macular hole was seen in 6 (4.1%) eyes, retinal detachment in 6 (4.1%) eyes and endophthalmitis in 2 (%1.38) eyes. Revitrectomy was performed in 12 eyes. At last visit, the retina was attached in all eyes.

Conclusion: The 25 G sutureless vitrectomy technique is effective in various vitreoretinal diseases. A transient decrease in intraocular pressure is seen in the early postoperative period. Postoperative reversible transient hypotony is not related directly with postoperative complications. More studies with control groups are needed in order to define the efficacy and safety of this technique. Keywords : 25 gauge vitrectomy, pars plana vitrectomy, transconjonctival sutureless vitrectomy