Scanning electron microscopic aspects of the vitreous body: Technique of preparation

Theopold, Hans-Martin; Faulborn, J

doi:10.1007/bf00414534

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…Opposing the SEM appearance of the observed structure to the entirely different SEM appearance of the ILM, we could identify it as vitreous itself. The ILM is composed of collagen type IV fiber of thinner diameter and irregular arrangement and is embedded in ground substance which gives it a smooth appearance (1), while the vitreous cortex is composed of collagen type II fiber, of thicker diameter (5) and parallel to the retinal surface (6).…”

Section: Discussionmentioning

confidence: 99%

Vitreous cortex remnants at the fovea after spontaneous vitreous detachment

Kishi¹,

Demaria²,

Shimizu³

1986

Int Ophthalmol

158

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We performed a scanning electron microscopic observation of the posterior retinal surface of 59 autopsy eyes with spontaneous vitreous detachment. In 26 eyes (44%), there were remnants of the posterior vitreous membrane in the foveal area. These vitreous cortex remnants formed three basic patterns. They appeared either as disc-shaped collagenous membranes covering the fovea, as rings along the foveal margin, or forming a structure that resembles a cyst. Each of these patterns seemed to have a counterpart to various known clinical situations. These findings imply that remnants of the vitreous cortex membrane frequently remain attached to the fovea after apparent complete posterior vitreous detachment. The observed features would provide morphological basis for the interpretation of several clinical conditions that take place along the vitreoretinal interface at the fovea.

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Section: Discussionmentioning

confidence: 99%

Vitreous cortex remnants at the fovea after spontaneous vitreous detachment

Kishi¹,

Demaria²,

Shimizu³

1986

Int Ophthalmol

158

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“…These phagocytic cells are mostly concentrated in the vitreous base and adjacent to the posterior pole [6,7,10,11]. They are involved in the synthesis of vitreous components such as collagen fibrils, HA and other macromolecules, and have been implicated in a number of pathological eye conditions [12].…”

Section: Biochemistry and Physiology Of The Vitreousmentioning

confidence: 99%

The Vitreous, the Retinal Interface in Ocular Health and Disease

2013

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The vitreous is a complex structure whose composition and appearance change with age. Anomalous adhesions between the posterior vitreous face and the retinal surface are the cause of numerous vitreoretinal complications, while the presence of an intact posterior hyaloid provides a scaffold for vascular growth and anteroposterior traction. This review summarizes what is known about the biochemistry of the vitreous, the process of posterior vitreous detachment (PVD) development, and the available clinical approaches to examining the vitreous and its interface. A pooled analysis of studies looking at the presence of a complete, partial or absent PVD in a number of macular and retinal diseases allows us to establish odds ratios for these various states. From this emerge both protective and disease-associated states in conditions such as proliferative diabetic retinopathy, macular edema, and age-related macular degeneration. With the emergence of pharmacological means to separate the posterior hyaloid, a better understanding of the possible role of the vitreous in tractional syndromes is required.

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“…The methods used are described in detail elsewhere [3,4], The eyes of 8 grown individuals without known eye disease were examined macroscopically and light microscopically. 2 of these eyes were also investigated by electron micros copy.…”

Section: Methodsmentioning

confidence: 99%