منابع مشابه
Structures and Functions of the Vitreous Body
The natural vitreous body has a fine structure and complex functions. The imitation of the natural vitreous body by vitreous substitutes is a challenging work for both researchers and ophthalmologists. Gases, silicone oil, heavy silicone oil and hydrogels, particularly the former two vitreous substitutes are clinically widely used with certain complications. Those, however, are not real artific...
متن کاملCarbonic anhydrase in the vitreous body.
REVIEWS of some recent literature concerning the biochemistry of the vitreous body contain no references to the presence of enzymes (Bellows, 1952, 1953; von Sallmann, 1953, 1954; McLean, 1954). However, the possibility of the existence of enzymes in the vitreous body has not been overlooked. Lepine (1870) reported that the vitreous of dogs, rabbits, and frogs contained a substance which caused...
متن کاملMR Elastography of the Ocular Vitreous Body
Figure 2. MRE Results. a) Magnitude image of the porcine globe imbedded in a bovine-gelatin substrate. b) Up-down sensitized wave image, showing the mode-conversion of 10-Hz longitudinal waves at the corneoscleral surface and propagation of the resulting shear waves inside the vitreous body. c) Shear stiffness map generated with a local frequency estimation algorithm, yielding an average stiffn...
متن کاملProtein Studies on the Human Vitreous Body
INVESTIGATIONS of the vitreous body are beset with numerous technical difficulties. Its large water content and the instability of its structure make it difficult to obtain unchanged vitreous body in large amounts. Through the slit lamp and in fixed histological preparations (Lauber, 1936; Baurmann, 1926; Comberg, 1924; Duke-Elder, 1930), the human vitreous body appears as a structured mass. In...
متن کاملA Novel Artificial Vitreous Substitute – Foldable Capsular Vitreous Body
The natural vitreous is a transparent, gelatinoid structure occupying four-fifths of the volume of the eye. It has a thin, membrane-like structure corresponding to the vitreous cortex that extends from the ora serrata to the posterior pole.1 It is somewhat spherical but slightly flattened meridionally, and it has a cup-shaped depression in its anterior side. It consists of about 99% water by we...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1935
ISSN: 0007-1161
DOI: 10.1136/bjo.19.8.433