Colour Vision Deficiencies VIII by John D. Mollon (auth.), G. Verriest (eds.) PDF

By John D. Mollon (auth.), G. Verriest (eds.)

ISBN-10: 9400942753

ISBN-13: 9789400942752

ISBN-10: 9401083991

ISBN-13: 9789401083997

Colour imaginative and prescient Deficiences VIII brings jointly details at the most modern tendencies within the following parts of analysis: -Visual results of extreme lighting fixtures; -Effects of intoxications on color imaginative and prescient; -Ageing and imaginative and prescient; -Methods of exam; -Congenital defects; -Acquired defects; -Practical elements; -Physiological bases.

This quantity is a average follow-up on Volumes VI and VII released in 1981 and 1983 respectively via Dr. W. Junk Publishers.

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The treatment sessions are I week apart. B. The normal value for the blue mechanism at 460nm, measured using the Wald technique, is 2 log units. DISCUSSION There is some evidence that deterioration in colour vision following panretinal photocoagulation with the argon laser depends on the amount of treatment given in terms of the number of bums. However the change from long-duration to short-duration bums is a more important factor. With the former treatment style permanent tritanopia and loss of huediscrimination results while in the latter the loss of hue-discrimination is transient and the blue mechanism only slightly affected.

Even the diet of the patient, the condition of the intestinal flora (vitamin synthesis) and the consumption of alcohol or tobacco may play an important role. For this symposium I investigated the files of about 700 patients suspected of intoxication or being on treatment. The purpose was to select patients in whom colour vision examination strongly suggested involvement of the retina or of the optic nerve. Colour vision examination was made under standardized conditions: six Philips fluorescent tubes colour 57, colour rendering index 96, providing 1750 lux at the level of the test table.

Swinney, Birmingham (1785). Ytterborg, J. Optic neuropathy during treatment with Catran. Acta Ophthalmol. (Kbh) 44:377-379 (1966). J. and Baier, M. Die Veriinderungen der spektralen Empfindlichkeit bei Myambutolschiiden. Ber. Dtsch. Ophthalmol. Ges. 78:1031-1037 (1981). Author's address: Prof. Dr. W. -Eye Hospital Heidelberg Bergheimer Str. G. 52 CONE INTERACTIONS IN DRUG-INDUCED RETINAL DYSFUNCTIONS E. ZRENNER and 1. ) Spectral sensitivity functions and the transient decrease of sensitivity to short wavelengths after the offset of yellow light (Mollon and Polden, 1977) were measured by increment threshold techniques in patients suffering from acquired colour vision deficiencies, caused either by drugs or by hereditary retinal degenerations.

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Colour Vision Deficiencies VIII by John D. Mollon (auth.), G. Verriest (eds.)

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