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Subconjunctival bleeding, also known as subconjunctival hemorrhage or subconjunctival haemorrhage, is bleeding from a small blood vessel over the whites of the eye. It results in a red spot in the white of the eye. [1] There is generally little to no pain and vision is not affected. [2] [3] Generally only one eye is affected. [2]
A subconjunctival hemorrhage can often occur without any obvious cause or harm to the eye. A strong enough sneeze or cough can cause a blood vessel in the eye to burst. Hyphema is a result of blunt or penetrating trauma to the orbit that increases intraocular pressure, causing tears in the vessels of the ciliary body and iris .
The person's vision may improve over time as the blood moves by gravity lower in the anterior chamber of the eye, between the iris and the cornea. [1] In many people, the vision will improve, however some people may have other injuries related to trauma to the eye or complications related to the hyphema. [1]
Symptoms of an open-globe injury include eye pain, foreign body sensation, eye redness, and blurry or double vision. [9] While globe injuries are commonly associated with peri-ocular trauma that may obstruct diagnosis, [4] several signs suggest open-globe damage: Visible corneal or scleral laceration; Sub-conjunctival hemorrhage; Protruding ...
Ocular trauma: If a healthcare provider fails to take into account the likelihood that concurrent cerebral bleeding may be contributing to Terson's syndrome, intraocular hemorrhage in a patient with a history of head trauma may be mistakenly diagnosed as a direct eye injury.
Purtscher's retinopathy was first characterized in 1910 and 1912 as a syndrome of sudden blindness after head trauma, [7] with patches of hemorrhage and whitening of the retina in both eyes. [3] Later, it was discovered to occur after other types of trauma, such as chest trauma, and is associated with several non-traumatic systemic diseases. [3]
A red eye is an eye that appears red due to illness or injury. It is usually injection and prominence of the superficial blood vessels of the conjunctiva, which may be caused by disorders of these or adjacent structures. Conjunctivitis and subconjunctival hemorrhage are two of the less serious but more common causes.
Retinal hemorrhage (UK English: retinal haemorrhage) is a disorder of the eye in which bleeding occurs in the retina, the light sensitive tissue, located on the back wall of the eye. [1] There are photoreceptor cells in the retina called rods and cones , which transduce light energy into nerve signals that can be processed by the brain to form ...