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A traumatic hyphema is caused by a blow to the eye. [1] ... The most common causes of hyphema are intraocular surgery, blunt trauma, and lacerating trauma. Hyphemas ...
Traumatic eye injury can cause intraocular hemorrhage in people of any age and gender. However, injuries tend to be more common in young males due to more outdoor activities and heavy work. They are also more common in children during the summer. The incidence of traumatic hyphema is approximately 12 per 100,000.
Multiple complications are known to occur following eye injury: corneal scarring, hyphema, iridodialysis, post-traumatic glaucoma, uveitis cataract, vitreous hemorrhage and retinal detachment. The complications risk is high with retinal tears, penetrating injuries and severe blunt trauma.
The sudden impact on the thorax causes an increase in intrathoracic pressure. [4] In order for traumatic asphyxia to occur, a Valsalva maneuver is required when the traumatic force is applied. [6] Exhalation against the closed glottis along with the traumatic event causes air that cannot escape from the thoracic cavity.
Accidental trauma during sleep should be prevented by patching with an eye shield during night time. Avoid giving aspirin, heparin/warfarin and observe daily for resolution or progression. A large hyphema may require careful anterior chamber washout. Rebleeds may require additional intervention and therapy.
Causes can include coughing, vomiting, heavy lifting, straining during acute constipation or the act of "bearing down" during childbirth, as these activities can increase the blood pressure in the vascular systems supplying the conjunctiva. Other causes include blunt or penetrating trauma to the eye.
The chafing of mispositioned intraocular lens over iris, ciliary body or iridocorneal angle cause elevated intraocular pressure (IOP) anterior uveitis and hyphema. It is most commonly caused by anterior chamber IOLs and sulcus IOLs but, the condition can be seen with any type of IOL, including posterior chamber lenses and cosmetic iris implants.
Causes of the one and a half syndrome include pontine haemorrhage, ischemia, tumors, infective mass lesions such as tuberculomas, demyelinating conditions like multiple sclerosis, Arteriovenous malformation, Basilar artery aneurysms and Trauma.