Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2005 Jul-Aug;36(4):327-30.

Digitizing stereoscopic optic nerve head photographs for storage and viewing using a personal computer

Ronit Nesher  1 , Ioannis Zacharopoulos, Ehud I Assia, Joel S Schuman
Affiliations

Digitizing stereoscopic optic nerve head photographs for storage and viewing using a personal computer

Ronit Nesher et al. Ophthalmic Surg Lasers Imaging. 2005 Jul-Aug.

Abstract

Careful examination and monitoring of optic nerve head changes is essential in the treatment of patients with glaucoma. This often results in accumulation of numerous photographs and required appropriate storage space. A simple, inexpensive, and efficient means of storing and viewing stereoscopic optic nerve head photographs is described. Images were acquired with a fundus camera, on a color slide film. Slides were then scanned and digitized. A handheld stereoscope was used for stereoscopic viewing on a computer monitor. A scanning resolution of 300 dpi appeared optimal. At this resolution, the storage utilization was 16 kilobytes and the scanning time was 160 seconds per patient.

PubMed Disclaimer

Figures

Figure
Figure
Optic nerve head viewing on the personal computer monitor with the aid of the Screen-Vu Stereoscope (Eyesupply USA, Inc., Tampa, FL).
See this image and copyright information in PMC

References

    1. O’Conner DJ, Zeyen T, Caprioli J. Comparisons of methods to detect glaucomatous optic disc damage. Ophthalmology. 1993;100:1498–1503. - PubMed
    1. Nakia M, Nduaguba C, Rozier M, et al. Comparison of imaging techniques to detect glaucomatous optic nerve damage. Invest Ophthalmol Vis Sci. 1999;40(suppl):S397.
    1. Zangwill LM, Bowd C, Berry CC, et al. Discriminating between normal and glaucomatous eyes using the Heidelberg Retina Tomograph, GDx Nerve Fiber Analyzer and Optical Coherence Tomograph. Arch Ophthalmol. 2001;119:985–993. - PubMed
    1. Shuttleworth GN, Khong CH, Diamond JP. A new digital optic disc stereo camera: intraobserver and interobserver repeatability of optic disc measurements. Br J Ophthalmol. 2000;84:403–407. - PMC - PubMed
    1. Jamara RJ, Denial A, Valentini D, Thorn F. Clinical quality assessment using computer monitor photoimages of optic nerve head cupping. Optom Vis Sci. 2000;77:433–436. - PubMed