منابع مشابه
Colour vision in marine organisms.
Colour vision in the marine environment is on average simpler than in terrestrial environments with simple or no colour vision through monochromacy or dichromacy. Monochromacy is found in marine mammals and elasmobranchs, including whales and sharks, but not some rays. Conversely, there is also a greater diversity of colour vision in the ocean than on land, examples being the polyspectral stoma...
متن کامل[Vision measurement and psychophysical tests].
Vision measurement is the basis for the study and standardization of visual sciences. Measurement of visual acuity has great value for research and for clinical practice. This paper (1) reviews the fundamental concepts to understand visual sense and the measuring units; (2) presents the fundamental limits to visual performance and the principles of aberration measurement of the eye; and (3) dis...
متن کاملIntroduction etc
Bilateral and multilateral development cooperation agencies are to an increasing extent promoting and adopting a sector-wide approach (SWAp) in their development cooperation. The Swedish International Development Cooperation Agency (Sida), for example, joined their first sector-wide approach cooperation in the late 90s, and today they are involved in SWAps in countries in Africa, Asia and Latin...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1922
ISSN: 0007-1161
DOI: 10.1136/bjo.6.2.90