Tapetum lucidum in a Carrier of X-Chromosomal Atrophia retinae pigmentosa
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چکیده
منابع مشابه
Fine structure of the canine tapetum lucidum.
The structure of the canine tapetum lucidum appears to be basically similar to that described in some other carnivores, but specific distinctions are present. The reflecting rodlets of the dog are similar in their dimensions to those of the cat, but they are more closely packed, resulting in a unique value for the wavelength of maximal reflectance. In addition, the rodlets are less precisely or...
متن کاملReflections on the tapetum lucidum and eyeshine in lycosoid spiders
In the lycosoid spiders, the secondary eyes possess a grate-shaped tapetum lucidum that reflects light, causing eyeshine when these spiders are viewed with approximately coaxial illumination. This guanine-based reflective surface is thought to increase visual capabilities in low light. We explored the eyeshine of the posterior medial eye in eight taxa of pisaurid and lycosid spiders. The taxa i...
متن کاملElectron Microscopy of the Tapetum Lucidum of the Cat
The fine structure of the tapetum of the cat eye has been investigated by electron microscopy. The tapetum is made up of modified choroidal cells, seen as polygonal plates grouped around penetrating blood vessels which terminate in the anastomosing capillary network of the choriocapillaris. The tapetal cells are rectangular in cross-section, set in regular brick-like rows, and attain a depth of...
متن کاملComparative morphology of the tapetum lucidum (among selected species).
OBJECTIVES The phenomenon of 'eye-shine' is seen in a variety of animal species, and is generally thought to be related to the presence of an intraocular reflecting structure, the tapetum lucidum. The tapetum lucidum is a biologic reflector system that is a common feature in the eyes of vertebrates. It normally functions to provide the light-sensitive retinal cells with a second opportunity for...
متن کاملFine structure of the tapetum lucidum in the short-tailed stingray (Dasyatis brevicaudata).
The tapetum lucidum of the short-tailed stingray (Dasyatis brevicaudata) is located in the choroid of the superior fundus immediately external to the choriocapillaris. In this species the tapetum consists of a single layer of overlapping cells oriented at an angle of about 30 degrees to the incoming light. These tapetal cells alternate with and are separated from one another by melanocytes whic...
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ژورنال
عنوان ژورنال: Ophthalmologica
سال: 1976
ISSN: 1423-0267,0030-3755
DOI: 10.1159/000307904