J Cataract Refractive Surgery
Volume 31, Issue 3, Pages 590-594 (March 2005)
Experimental observation of intraocular pressure changes during microkeratome suctioning in laser in situ keratomileusisHiroko Bissen-Miyajima, MD, PhDCorresponding Author Informationemail address, Shintaro Suzuki, MD, Yoshie Ohashi, MD, Keiichiro Minami, PhD
Purpose
To observe changes in intraocular pressure (IOP), the manner in which the eye is suctioned, and the effect of the number of suction ports.
Setting
Department of Ophthalmology, Tokyo Dental College, Suidobashi Hospital, Tokyo, Japan.
Methods
Quote:
Suction rings with single or dual ports were made of transparent acrylic acid resin to facilitate observation with a digital video camera. The IOP and the duration of the IOP increase (time to reach 90% of the maximum IOP) were measured in 6 porcine eyes with an intra-vein pressure-sensor catheter in the vitreous cavity. The IOP changes were recorded using a personal computer.
Results
Suctioning with single- and dual-port suction rings was similar. The IOP increases with single- and dual-port suction rings were similar (99.1 mm Hg ± 6.1 [SD] and 99.0 ± 6.5 mm Hg, respectively) (P=.987). The duration of the IOP increase was also similar (4.21 ± 0.24 seconds and 4.12 ± 0.33 seconds, respectively) (P=.190).
