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"Surgical removal of the vitreous gel by a vitreoretinal surgeon can sometimes be performed to achieve symptomatic relief," says Dr. Sastry. 4. Consider other options for the most severe cases
After vitrectomy to remove the vitreous gel, membranectomy is undertaken to peel away the tissue. Diabetic retinopathy – may damage sight by either a non-proliferative or proliferative retinopathy. The proliferative type is characterized by formation of new unhealthy, freely bleeding blood vessels within the eye (called vitreal hemorrhage ...
The vitreous fluid is not present at birth (the eye being filled with only the gel-like vitreous body), but found after age 4-5, and increases in size thereafter. [1] Produced by cells in the non-pigmented portion of the ciliary body, the vitreous humour is derived from embryonic mesenchyme cells, which degenerate after birth. [1]
Pseudoplasticity is the characteristic of a material to rapidly transform from a gel-like consistency to a liquid and back as the shear stress is varied. A high molecular weight, high viscosity OVD at rest retains its shape well. When under sufficient shear stress it will flow, and alignment of the molecules reduces viscosity to allow rapid flow.
Vitreomacular adhesion (VMA) is a human medical condition where the vitreous gel (or simply vitreous, AKA vitreous humour) of the human eye adheres to the retina in an abnormally strong manner. As the eye ages, it is common for the vitreous to separate from the retina.
Eye surgery, also known as ophthalmic surgery or ocular surgery, is surgery performed on the eye or its adnexa. [1] Eye surgery is part of ophthalmology and is performed by an ophthalmologist or eye surgeon. The eye is a fragile organ, and requires due care before, during, and after a surgical procedure to minimize or prevent further damage.
Posterior capsular tears with vitreous loss; Implantation of anterior chamber IOL. Vitreoretinal procedure involving injection of silicone oil. The location of the iridectomy in such cases is at 6 o'clock, as opposed to routine iridectomy done at 11 to 1 o'clock. This is because silicone oil is less dense than water. Iris trauma
Hyalocytes, also known as vitreous cells, are cells of the vitreous body, which is the clear gel that fills the space between the lens and the retina of the eye. Hyalocytes occur in the peripheral part of the vitreous body, and may produce hyaluronic acid and collagen fibrils, [1] [2] Hyalocytes are star-shaped (stellate) cells with oval nuclei ...