Intraocular Pressure Assessment in Vitrectomized Gas-filled Eyes.

Kang, Se Woong; Jeon, Woong Chan

Original Article

Journal of the Korean Ophthalmological Society 1995;36(8):1378-1383.
Published online August 1, 1995.

Intraocular Pressure Assessment in Vitrectomized Gas-filled Eyes.

Se Woong Kang, Woong Chan Jeon

Department of Ophthalmology, College of Medicine, Chungbuk National University, Cheongju, Korea.

초자체강내 가스와 안압 측정

강세웅(Se Woong Kang),전웅찬(Woong Chan Jeon)

Abstract

We assessed the accuracy of Goldmann or Schi-(phi)tz tonometric readings in the gas filled vitrectomized eyes. We performed pars plana vitrectomy with or without lensectomy in 8 rabbit eyes, and in 6 enucleated porcine eyes. Fluid-air exchange was done at the end of the procedure. Intraocular pressure was measured using Goldmann tonometer and Schi-(phi)tz tonometer and was compared with true pressure which was monitored by manometer with indwelling catheter in the intravitreal cavity. Goldmann and Schi-(phi)tz tonometry always showed lower presure value than manometeric one(P<0.05) and the discrepancy was greater at higher range of intraocular pressure. Between these two methods Goldmann tonometry was more accurate in the rabbit eye (P>0.05).

Key Words: Intraocular pressure;Manometer;Schi-(phi)tz tonometer;Goldmann tonometer;Gas-filled eye