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Intraocular Pressure Measurement after Pars Plana Vitrectomy

1989; Elsevier BV; Volume: 96; Issue: 9 Linguagem: Inglês

10.1016/s0161-6420(89)32716-3

1549-4713

Lucian V. Del Priore, Ronald G. Michels, Mirta A. Nunez, William Smiddy, Bert M. Glaser, Serge de Bustros,

Glaucoma and retinal disorders

The ability of various tonometers to measure intraocular pressure (IOP) accurately after pars plana vitrectomy was determined by using Schiøtz, Goldmann, and Digilab pneumatic tonometers before and after the procedure in 47 eyes. Seventeen of these eyes underwent intraoperative fluid-gas exhange and had an intravitreal gas bubble on the first postoperative day. The Schiøtz tonometer underestimated the Goldmann IOP by more than 10 mmHg in 6 (35%) of 17 eyes after vitrectomy with intravitreal gas and 4 (13%) of 30 eyes without intravitreal gas. The Digilab tonometer did not underestimate the Goldmann IOP by more than 10 mmHg in any eye postoperatively. However, the Digilab tonometer underestimated the Goldmann IOP by more than 5 mmHg in 3 (18%) of 17 eyes after vitrectomy with intravitreal gas and two (7%) of 30 eyes without intravitreal gas.