The myodesopsies are more commonly known as the phenomenon of “flying flies”; this disorder is due to deterioration of the bilateral vitreous body.
The vitreous is a gelatinous and initially compact substance that fills the intraocular space between the retina and the crystalline lens.
This substance for a natural and physiological aging or for other causes (myopia and others) is however destined to lose part of its integrity, over the years.
The phenomenon of flying flies indicates that the vitreous has slightly liquefied and part of its fibers move inside the eye.
The liquefaction of the vitreous often provokes a vitreous detachment with consequent proliferation of the mobile bodies and possible retinal lesions.