+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

The reproducibility of computerized boundary analysis for measuring optic disc pallor in the normal optic disc



The reproducibility of computerized boundary analysis for measuring optic disc pallor in the normal optic disc



Ophthalmology 92(2): 243-251



The optic discs of eight normal subjects were photographed on three separate visits under widely varying conditions. Each photograph was scanned by a television camera, converted to digital form, and then analyzed using computer image analysis techniques. The computer was programmed to delineate the boundary around the optic disc and the area of pallor. The percentage of disc pallor was then computed across the entire disc and for each disc quadrant. The reproducibility of the procedure was determined by evaluating several photographic parameters: camera flash intensity, film type, magnification, and centering of the disc in the photograph. The focus adjustment on the television scanner was also varied. Under carefully controlled conditions, results showed that the reproducibility of measuring the total percent of disc pallor was 2%. Results for reproducibility are also given for less than optimal conditions and for manual planimetry on the same set of photographs.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 041736694

Download citation: RISBibTeXText

PMID: 3838580

DOI: 10.1016/s0161-6420(85)34057-5


Related references

The optic disc in glaucoma, III: diffuse optic disc pallor with raised intraocular pressure. British Journal of Ophthalmology 62(10): 670-675, 1978

Stereoscopic optic disc measurement with computerized image analysis optic disc cup profile. Folia Ophthalmologica Japonica 41(6): 1277-1278, 1990

Computerized measurement of the three-dimensional distribution of optic disc pallor. Current Eye Research 16(11): 1096-1101, 1997

Combined in-depth, 3D, en face imaging of the optic disc, optic disc pits and optic disc pit maculopathy using swept-source megahertz OCT at 1050 nm. Graefe's Archive for Clinical and Experimental Ophthalmology 256(2): 289-298, 2018

Increase of pallor and fluorescein-filling defects of the optic disc in the follow-up of ocular hypertensives measured by computerized image analysis. Ophthalmology 94(5): 558-563, 1987

Reproducibility of evaluation of optic disc change for glaucoma with stereo optic disc photographs. Ophthalmology 110(2): 340-344, 2003

Acute visual loss and optic disc edema followed by optic atrophy in two cases with deeply buried optic disc drusen: a mimicker of atypical optic neuritis. Bmc Ophthalmology 18(1): 278, 2018

Reproducibility of optic disc measurements with computerized analysis of stereoscopic video images. Archives of Ophthalmology 104(7): 1035-1039, 1986

Membrane tissue on the optic disc may cause macular schisis associated with a glaucomatous optic disc without optic disc pits. Clinical Ophthalmology 7: 883-887, 2013

Quantitative evaluation of pallor disc ratio and color of the optic disc by a photographic method. Graefe's Archive for Clinical & Experimental Ophthalmology 220(4): 184-186, 1983

The histologic basis of optic disc pallor in experimental optic atrophy. American Journal of Ophthalmology 83(5): 709-717, 1977

Using ImageJ to evaluate optic disc pallor in traumatic optic neuropathy. Korean Journal of Ophthalmology 28(2): 164-169, 2014

Quantitative study of optic nerve head capillaries in experimental optic disc pallor. American Journal of Ophthalmology 93(6): 689-699, 1982

The influence of age, gender, refractive error, and optic disc size on the optic disc configuration in Japanese normal eyes. Acta Ophthalmologica Scandinavica 78(2): 200-203, 2000

Computerized optic disc analysis with adjunct stereoscopic viewing of disc photographs. Yonsei Medical Journal 31(4): 375-378, 1990