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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Sigal, Ian A. Schuman, Joel S. Kraus, Martin Lu, Chen D. Bilonick, Richard A. Grulkowski, Ireneusz Ishikawa, Hiroshi Kagemann, Larry Wang, Bo Hornegger, Joachim Nevins, Jessica E. Fujimoto, James G. Liu, Jonathan J. Nadler, Zach Wollstein, Gadi |
| Description | Author Affiliation: Wang B ( Department of Ophthalmology, UPMC Eye Center, Eye and Ear Institute, Ophthalmology and Visual Science Research Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.) |
| Abstract | PURPOSE: The lamina cribrosa (LC) is a prime location of glaucomatous damage. The purpose of this study was to compare LC 3-dimensional micro-architecture between healthy and glaucomatous eyes in vivo by using optical coherence tomography (OCT). METHODS: Sixty-eight eyes (19 healthy and 49 glaucomatous) from 47 subjects were scanned in a 3.5 × 3.5 × 3.64-mm volume (400 × 400 × 896 pixels) at the optic nerve head by using swept-source OCT. The LC micro-architecture parameters were measured on the visible LC by an automated segmentation algorithm. The LC parameters were compared to diagnosis and visual field mean deviation (VF MD) by using a linear mixed effects model accounting for age. RESULTS: The average VF MD for the healthy and glaucomatous eyes was -0.50 ± 0.80 dB and -7.84 ± 8.75 dB, respectively. Beam thickness to pore diameter ratio (P = 0.04) and pore diameter standard deviation (P < 0.01) were increased in glaucomatous eyes. With worse MD, beam thickness to pore diameter ratio (P < 0.01), pore diameter standard deviation (P = 0.05), and beam thickness (P < 0.01) showed a statistically significant increase while pore diameter (P = 0.02) showed a significant decrease. There were no significant interactions between any of the parameters and age (all P > 0.05). CONCLUSIONS: Glaucomatous micro-architecture changes in the LC, detected by OCT analysis, reflect beams remodeling and axonal loss leading to reduction in pore size and increased pore size variability. |
| ISSN | 01460404 |
| e-ISSN | 15525783 |
| DOI | 10.1167/iovs.13-13109 |
| Journal | Investigative Opthalmology & Visual Science |
| Issue Number | 13 |
| Volume Number | 54 |
| Language | English |
| Publisher | Association for Research in Vision and Ophthalmology |
| Publisher Date | 2013-12-19 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Glaucoma, Open-angle Diagnosis Optic Disk Anatomy & Histology Pathology Optic Nerve Diseases Tomography, Optical Coherence Imaging, Three-dimensional Intraocular Pressure Nerve Fibers Retinal Ganglion Cells Vision Disorders Visual Field Tests Visual Fields Comparative Study Research Support, N.i.h., Extramural Research Support, Non-u.s. Gov't Discipline Ophthalmology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ophthalmology Sensory Systems Cellular and Molecular Neuroscience |
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