The normal vitreous body is a special mucous gel-like tissue in the form of a transparent gel with no blood vessels or nerve tissue of its own. Its metabolism is extremely slow and its nutrition and metabolism is accomplished by diffusion through neighboring tissues. Vitreous opacity is the appearance of an opaque body within the vitreous. It is not an independent eye disease, but one of the common clinical signs in ophthalmology.
The etiology is classified as degenerative, inflammatory, hemorrhagic, traumatic, and systemic diseases.
Common causes include: vitreous degeneration in the elderly, retinal or uveal hemorrhage into the vitreous, high myopia, congenital residual embryonic cells or tissues in the vitreous, ocular trauma, intraocular foreign body retention, parasites and tumors, etc.
Clinical manifestations 1.Drifting black shadows in front of the eyes, black shadows floating with eye movements.
2.Various degrees of vision loss.
Examination 1, the examination glasses or slit lamp 90D microscopy can be seen, intravitreal dusty, striped, reticulated or flocculent and other different forms of cloudy objects floating with eye movement.
2.Severe clouding may not be able to see the fundus of the eye or no red reflection.
3, B-type ultrasound examination can assist in the diagnosis.
Diagnosis Diagnosis can be made based on clinical manifestations and examination results.
Treatment In physiological cases, no treatment is needed, while in pathological cases, treatment should be directed at the cause. Generally, anti-inflammatory or hemostatic treatment should be given to the cause, followed by the application of iodine preparations, hyaluronidase, urokinase or calcium agents to promote absorption.