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Property Organism Value Units ID Details
Ratio between cones (in the foveola), midget bipolars and midget ganglion cells (in the fovea walls) Primates cones:midget bipolars:midget ganglion cells=1:2:2 unitless 117190 Bringmann A. Structure...
Highest density of cones at center of the fovea Human Homo sapiens 147000 (96900-281000) cones/mm^2 105344 Helga Kolb, Eduardo Fernandez...
Visual angle of familiar objects Human Homo sapiens Sun or moon 0.5°: Thumbnail (at arm's length) 1.5°: Fist (at arm's length) 8°-10° N/A 105350 John Moran eye center...
Number of ATP hydrolysed to transmit a graded signals in an interneuron Blowfly Calliphora vicina 1000000-10000000 Unitless 103554 Laughlin SB, de Ruyter...
Size of receptive field of (retinal) horizontal cells Vertebrates 25 times the size of an individual cell's dendritic arbor 117169 Bloomfield SA, Völgyi...
Response properties of rod cells with maximal responses >=18pA Macaque Macaca fascicularis Table - link N/A 107385 Baylor DA, Nunn BJ, Schnapf...
Number of photoisomerizations caused by steady light that reduced the flash sensitivity to half the dark-adapted value Macaque Macaca fascicularis ~100 Photoisomerizations/sec 107386 Baylor DA, Nunn BJ, Schnapf...
Peak amplitude of unit quantal event Macaque Macaca fascicularis 0.7 pA 107387 Baylor DA, Nunn BJ, Schnapf...
Integration time of the response to a dim flash Macaque Macaca fascicularis ~250 ms 107388 Baylor DA, Nunn BJ, Schnapf...
Dark rate of discrete noise events in rod Macaque Macaca fascicularis 0.0063 sec^-1 107389 Baylor DA, Nunn BJ, Schnapf...
Dimensions of optic nerve head Human Homo sapiens 1.86mm×1.75mm N/A 105342 John Moran eye center...
Distance between eyes Human Homo sapiens 6 cm 105348 John Moran eye center...
Pupil diameter Human Homo sapiens 1-8 mm 105349 John Moran eye center...
Length of fibres of Henle for foveal cones Human Homo sapiens 125 to 260 μm 109684 Perry VH, Cowey A. The...
Comparison of light detection by rod photoreceptors, cone photoreceptors, photomultiplier tubes (PMT), and charge-coupled devices (CCD) Unspecified Table - link N/A 111345 F. Rieke and D. A. Baylor...
Amount of photons necessary to excite a cone Human Homo sapiens 100 unitless 100710 Brain Facts and Figures...
Regeneration of visual pigments to achieve complete dark adaptation Human Homo sapiens ~40 min 111394 Saari JC. Biochemistry...
Fraction of discernible colors perceived by dichromats out of those perceived by normal trichromats Human Homo sapiens 7 % 107062 Linhares JM, Pinto PD...
Number of fibers in human optic nerve Human Homo sapiens 1.2e+6 unitless 100696 Balazsi AG, Rootman J...
Diameter of retinal ganglion cell African Elephant Loxodonta africana 26.5 (14 to 65 ) μm 109092 Pettigrew JD, Bhagwandin A...