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1996 | 01 | 3 |

Tytuł artykułu

The measurement of luminance of light reflected from the human iris

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The authors developed a method of measuring the light luminance reflected from the human iris. The distribution of white and monochromatic light luminance reflected from the iris was measured in a group of people. The image of the iris was obtainedby means of a slit lamp equipped with its own light source and a built-in video camera. The eye was illuminated by white and monochromatic light with the wavelength of 486, 551, 589 and 656 nm. Experiments were conducted with the exclusion of all other light sources. The obtained image was saved in a computer by means of a Video Blaster FS 200 video card in a file with bmp extension. An original computer program has been written to calculate the luminance value for particular parts of the image.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

01

Numer

3

Opis fizyczny

p.303-309,fig.

Twórcy

  • Medical School, Bialystok, Poland
autor

Bibliografia

  • 1. Vanghan, D., Asbury, T., Wachstum, Entwicklung und Altersveranderungen. Vanghan, D., Asbury, T., Ophtalmologie, Diagnose und Therapie in der Praxis Berlin-Heidelberg: Springer-Verlag, 1983; chap. 2.
  • 2. Apple, D.J., Naumann, G.O.H., Manthey, R.M., Microscopic anatomy of the eye. In: Naumann, G.O.H., Apple, D.J., eds. Pathology of the eye. New York Springer-Verlag, 1986; chap. 2.
  • 3. Akhtar, R.A., Abdel-Latif, A.A., Surgical Sympathetic Denervation Increases (α1-Adrenoceptor-Mediated Accumulation of myo-Inositol Trisphosphate and Muscle Contraction in Rabbit Iris Dilator Smooth Muscle, Journal of Neurochemistry, 46(1), 96-104,1986.
  • 4. Shiraishi, K., Takayanogi, I., Subtype of Muscarinic Receptors Mediating Relaxation and Contraction in the Rat Iris Dilator Smooth Muscle, Gen Pharmac., 24(1), 139-142, 1993.
  • 5. Sandberg, M.A., Gaudio, A.R., Miller, S., Weiner, A., Iris pigmentation and extent of disease in patients with neovovascular age-related macular degeneration, Invest. Ophthalmol. Vis. Sci., 35(6), 2734-2740, 1994.
  • 6. Holz, F.G., Piguet, B., Minassian, D. C., Bird, A.C., Weale, R.A., Decreasing stromal iris pigmentation as a risk factor for age-related macular degeneration, Am. J. Ophthalmol., 117(1), 19-23, 1994.
  • 7. Repo, L.P., Terasvirta, M.E., Koivisto, K.J., Generalized transluminance of the iris and the frequency of the pseudoexfoliation syndrome in the eyes of transient ischemic attack patients, Ophthalmology, 100(3), 352-355, 1993.
  • 8. Kleszczewski T., Święcicki A., The Measurement of Luminance of Light Reflected from the Human Iris, Polish - British Workshop „Fractals, Nonlinear Dynamics and Chaos in Biophysics„ , Zakopane, Poland May 6-10, 1996.
  • 9. Kurpiewska, G., Kurpiewski, J., Podstawy Telewizji Kolorowej, Warszawa: Wydawnictwa Komunikacji i Łączności,, 54-57, 1971.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-article-4ebded51-6fc7-4f62-8082-34d9b2a2f233
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