@inproceedings{3b115bbffaac4ee8bf43d137b5a0c2a3,
title = "In vitro examination of the anterior chamber angle with a gradient-index (GRIN) lens endoscope",
abstract = "The cloudy cornea in primary infantile glaucoma may contraindicate a goniotomy if a view of the anterior chamber angle is not obtainable through the operating microscope. The purpose of this study was to determine if a gradient-index (GRIN) endoscope was capable of improving the imaging of the anterior chamber angle structures in vitro. The anterior chambers of cadaver porcine eyes were deepened with a viscoelastic material. The GRIN lens endoscope entered the anterior chamber through a corneal incision near the limbus. The anterior chamber structures including the pectinate ligaments in the angle were clearly visualized on a video screen as the endoscope was advanced into the anterior chamber angle. The amount of illumination was automatically controlled. A low OH silica fiber having a core diameter of 100 microns and delivering 10 mJ of Holmium:YAG energy was inserted into the endoscope. Due to the low amount of energy, the pectinate ligaments were inconsistently cut. The specimens were examined with a dissecting microscope, fixed in formalin, and processed for light microscopy. A thin endoscope allows intraoperative examination of anterior segment structures when a cloudy cornea is present. Therefore, it may become a useful instrument for performing a goniotomy in primary infantile glaucoma when direct visualization of the anterior chamber angle is not possible with a goniotomy lens.",
author = "Joos, {Karen M.M.D.} and Jinhui Shen and Parel, {Jean Marie} and Rol, {Pascal O.}",
year = "1995",
month = dec,
day = "1",
language = "English (US)",
isbn = "0819416630",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
pages = "42--46",
editor = "Rosario Brancato and Fercher, {Adolf F.} and A.S. Melamed and Rol, {Pascal O.}",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
note = "Lasers in Ophthalmology II ; Conference date: 09-09-1994 Through 10-09-1994",
}