Light enters the eye through the cornea, pupil, and lens and is then transmitted through the vitreous to the retina. Fills the space between the lens and the retina (80% of the volume of the eyeball), which lined the back of the eye and helps to keep the retina in place, pushing it to the choroid. The space it fills is called the vitreous body.
vitreous humor function
vitreous humor function that is attached to the retina break away from the retinal surface and separate from the retina. It can cause glassy floats. Water humor, fluid in the front part of the eye, is constantly replenished. However, the gel in the vitreous body is not. Therefore, if the remains of these tiny cracks in the retina get into the vitreous, they will remain there.
These debris or small tissue spots are called floats. In the vision, they may look like dots, dust, spiderweb or strings. You see the shadow of this debris when the light is thrown on the volleyball.
They can be annoying and disturb the reading. However, most ophthalmologists consider them harmless and a normal sign of aging.
Glass cell detachment (PVD)
Posterior vitreous (PVD) stratification is a common disorder seen in people 60 years of age and older and increasingly more common after the age of 80. This detachment is usually the result of normal age-related changes in the glass gel in which the gel shrinks and separates from the retina.
It may also result from an eye injury or inflammation caused by surgery or disease. With age, the glass gel in the middle of the eye begins to change. Parts of the gel contract and lose fluid.
When these changes cause the glass gel suddenly shrinks and separates from the retina, it is called posterior vitreous detachment.
The detachment of the posterior vitreous body usually does not cause any problems, but it may increase the risk of retinal detachment or sometimes cause tears in the retina.
At the points where the glass gel is strongly connected to the retina, the gel can pull the retina so strongly that it tears the retina. The tear then allows the fluid to accumulate under the retina, which can lead to retinal detachment.