No. Hyphema is an accumulation of blood in front of the iris, usually resulting from an injury. While the outermost layers or whites of the eyeball contain capillaries, the internal chambers of the eye contain no blood vessels. Instead, the eye has its own special circulatory system, consisting of a transparent liquid known as aqueous humor. If a capillary over the iris bursts, blood may seep into the aqueous humor and cause visual problems.Fortunately, aqueous humor flows constantly across the iris and is reabsorbed by a network of small veins that empty into the bloodstream. The blood from a hyphema is usually carried away from the eye by the flow of the aqueous humor within a matter of days, and vision returns to normal.However, a blood clot may block the small veins responsible for reabsorbing the aqueous humor, causing pressure to build up in the eyeball. This may result in damage to the optic nerve from glaucoma, a sight-threatening increase in pressure within the eye.Similarly, damage from the injury that caused the hyphema may lead to glaucoma. The risk of glaucoma is greater with larger hyphemas or in cases when, after the blood has disappeared, there is subsequent bleeding and recurrence of hyphema.