See something black

Introduction Look at things with small black spots which are caused by vitreous opacity. The vitreous is a transparent gel-like tissue, which is clear and bright. The main component is a mesh frame composed of collagen fibers filled with hyaluronic acid of adsorbing molecules, which can stabilize the vitreous gel and ensure the vitreous and its surrounding retina. Buffered when the eyeball turns or is shaken. And the vision is clear and flawless, ensuring the acuity of vision.

Cause

Vitreous opacity can be caused by the following lesions:

1, uveitis, inflammatory exudate and inflammatory cells into the vitreous to form gray-white dusty, flocculent or agglomerate turbidity.

2, bleeding, retinal phlebitis, venous obstruction, diabetes, high blood pressure, trauma or surgery caused by bleeding into the vitreous, red, yellow, grayish white sheet or turbid turbidity formed during blood entry and absorption.

3. Pigments, trauma, uveitis, etc. cause pigment particles to enter the vitreous.

4, parasites and their metabolites, intraocular tumors or other parts of the body tumor metastasis, causing turbidity.

5, ocular trauma in the vitreous body remains.

6, due to eye trauma, bleeding, diabetes, etc. caused by vitreous tissue proliferation in the vitreous.

7, vitreous degeneration, more common in the elderly and high myopia, vitreous hyaluronic acid depolymerization liquefaction. People with diabetes and hypercholesterolemia may have cholesterol crystals in the vitreous. Breakline

an examination

Related inspection

Ophthalmoscopy, ophthalmologic examination, fundus examination, eye function examination

Use the direct ophthalmoscope +6 ~ +8D check, when the eyeball rotation suddenly stops, the black fluttering small dots or clumps can be seen under the red light reflection background of the fundus. Under the indirect ophthalmoscope, the floating objects of different natures can be clearly distinguished. Under the slit lamp and the three-sided mirror, the source and properties of the turbidity can be judged in more detail.

Differential diagnosis

There are ghosts in things: astigmatism, presbyopia, cataracts, nervous system diseases, etc. can cause "eyes to see things have a ghost", the ghosts caused by nervous system diseases, only when the eyes look at "eyes see things have a ghost" There is no ghosting when looking at one eye. It is a clinical symptom of diplopia. Re-viewing, as the name suggests, refers to the phenomenon that an object is regarded as two objects that leave. The clinical can be divided into two types: single-eye double-eye and double-eye double-view. The double-eye double-view is more common in the elderly.

Non-vitreous lesions in front of the fly: Congenital physiological floaters are a type of physiological floater.

Non-lesional pre-flying mosquitoes in the elderly: Senile physiological floaters are a type of physiological mosquitoes.

Abnormal flash in front of eyes, increased black spots: pathological floaters are generally caused by serious diseases, which are caused by changes in the structure of the omentum, optic nerve, ciliary body and other structures near the vitreous.

Use the direct ophthalmoscope +6 ~ +8D check, when the eyeball rotation suddenly stops, the black fluttering small dots or clumps can be seen under the red light reflection background of the fundus. Under the indirect ophthalmoscope, the floating objects of different natures can be clearly distinguished. Under the slit lamp and the three-sided mirror, the source and properties of the turbidity can be judged in more detail.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.