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İ.Ü. Cerrahpaşa Tıp Fak. Göz Hastalıkları AD. Intraocular pressure(IOP) changes following scleral buckling procedures due to retinal detachment surgery were studied by Schiotz indentation, Goldmann applanation and non-contact pneumotonometry methods separately. A series of twenty-six patients (17 males and 9 females whose refractive values were between +0.50 and -9.00 dioptry) undergoing scleral buckling surgery were included in the study. IOP s were measured with indentation, applanation and non-contact pneumotonometry methods before surgery and at 1st. week, 1st. month and 3rd. month following operation. All values obtained before and after surgery were analysed statistically. IOP s which were measured by all methods following scleral bucklying procedure were higher than preoperative values(p<0.05). Both of preoperative and postoperative 1st. week values which were obtained by all three methods showed no statistical difference (p>0.05). Postoperative 1st. and 3rd. months values which were measured by applanation and non-contact methods were higher than Schiotz tonometry (p<0.05). We consider that this difference is caused by both more effective pressure of the used sponge which has swollen with water and the changes in the scleral rigidity. Keywords : Retinal Detachment, Scleral Explant, Ocular Tonus