This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citation map  • Citing articles on HighWire  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

Yuichiro Ogura, MD; Mahnaz Shahidi, PhD; Marek T. Mori, MS; Norman P. Blair, MD; Ran Zeimer, PhD

Arch Ophthalmol. 1991;109(7):957-961.

Abstract
• We have developed instrumentation to improve the visualization of fine vitreoretinal structures at the macula during slit-lamp biomicroscopy. The instrument, mounted on a slit-lamp microscope, used a green helium-neon laser to deliver a narrow beam, 15 µm in width and 2 mm in length. The intersection of the laser slit with the ocular structures was viewed at an angle, as in conventional slit-lamp biomicroscopy. The instrument was used to examine patients with idiopathic macular holes or cysts. The results indicated that the new illumination was superior due to the narrow width of the beam, the enhanced brightness, and the monochromacy in green, which reduced background scatter. These advantages allowed for visualization of fine retinal structures that are difficult to detect with conventional slit-lamp biomicroscopy. The findings in patients with idiopathic macular hole demonstrated that the operculum was located approximately 500 µm anterior to the surrounding retina and moved minimally. This suggested that the operculum may be supported by partially detached posterior vitreous cortex, and that a macular hole is the result of tangential traction followed by axial traction caused by a contracted and detached cortical vitreous gel.

Author Affiliations
From the Department of Ophthalmology, UIC Eye Center, University of Illinois at Chicago College of Medicine.

Footnotes
Accepted for publication February 27, 1991.

Reprint requests to Applied Physics Laboratory, Department of Ophthalmology, UIC Eye Center, University of Illinois at Chicago, 1855 W Taylor St, Chicago, IL 60612 (Dr Ogura).

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter     What's this?

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Retinal topography and thickness mapping in atrophic age related macular degeneration
Shahidi et al.
Br J Ophthalmol 2002;86:623-626.
ABSTRACT | FULL TEXT  

Illustration of the Stages of Idiopathic Macular Holes by Laser Biomicroscopy
Kiryu et al.
Arch Ophthalmol 1995;113:1156-1160.
ABSTRACT