. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Ardeiformes Plate XXIII Plcgadis falcinellus. Ardeiformes Plate XXIV Mycteria americana CARINATjE Ardeiformes Spoonbill. Platalea leueorodia. Plate XXV. The color of the eyeground is decidedly gray, becoming brownishtowards the periphery. The entire fundus is covered with minute,irregularly shaped, gray-white dots, that appear more distinct aboutthe macular region. At the fovea, where they are brilliant white,they are still more closely packed. The foveal region appears
. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Ardeiformes Plate XXIII Plcgadis falcinellus. Ardeiformes Plate XXIV Mycteria americana CARINATjE Ardeiformes Spoonbill. Platalea leueorodia. Plate XXV. The color of the eyeground is decidedly gray, becoming brownishtowards the periphery. The entire fundus is covered with minute,irregularly shaped, gray-white dots, that appear more distinct aboutthe macular region. At the fovea, where they are brilliant white,they are still more closely packed. The foveal region appears to besunken below its surroundings and to be enclosed in a pale, greenish(reflex) ring that is of oval shape, with its long axis horizontal. Theoptic disc is a long, narrow oval, and presents a brilliant whiteappearance. Near its upper end are several choroidal vessels of apale, golden-yellow color. Parallel to the long axis of the nerve-head is another elongated mass of white fibres (almost like a secondoptic disc) having its centre stippled with fine pigment dots, andextending across the eyeground. Radiating from the margins ofthe papilla one sees a number of fa
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1917
