Experimental observation of intraocular pressure changes during microkeratome suctioning in laser in situ keratomileusis

Abstract

The number of ports did not affect suctioning and changes in IOP. This technique is useful in developing the ideal shape and setting of the suction ring.

Continuous intraocular pressure recordings during lamellar microkeratotomy of enucleated human eyes

“…1,2,14,15 Unusually high IOP during LMK, with IOP ranging from 77 to 229 mm Hg during the vacuum phase and 140 to 360 mm Hg during the lamellar cut, was found. Sachs et al 1 also noted a sudden decrease from these elevated values to 5 mm Hg upon vacuum release.…”

Intraocular pressure measurements during flap preparation using 2 femtosecond lasers and 1 microkeratome in human donor eyes

“…This method of direct IOP measurements in the posterior segment is well-established. 14,21,22 We chose this approach because we found it difficult to access the anterior chamber during LASIK because cutting heads and suction rings of variable shape cover the cornea and the perilimbal region. Also, as described above, some LASIK-related complications occur in the posterior segment of the eye.…”

Pneumatic Trabeculoplasty versus Argon Laser Trabeculoplasty in Primary Open-Angle Glaucoma

“…During LASIK, IOP increases to 85–120 mm Hg during the suction phase [20,21,22,23,24] and deformation of the eye (1.125 mm axial length increase, mainly affecting the posterior segment) [25] and reversible optic nerve head changes have been detected [26]. However, after several months, no alterations were found in the optic disc, retinal nerve fiber layer [27,28,29], and visual field [30,31].…”