The presence of blood in the anterior chamber of the eye.(noun)
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Use "hyphema" in a sentence
"The water rockets you mention were a big deal at our house about that time - the NC versions were called "Wet Willies" and my brother had one shoot into his eye while he was trying to fill it up and cause a hyphema (big deal - bleeding into the eye that you have to remain perfectly still for for 48 hours to prevent blindness)."
"That ball shattered his nose, shattered his orbital bone, opened up a gash above his eye that needed 13 stitches, and worst of all, left his left eye filled with blood - the doctors called it hyphema."
"The uveitis may remain undiagnosed clinically because of hyphema, decreased corneal clarity, and inflammation related to the trauma."