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[1] [4] Globe lacerations occur when a sharp object or projectile contacts the eye causing a full-thickness wound at the point of contact. Globe lacerations are further sub-classified into penetrating or perforating injuries. [3] Penetrating injuries result in a single, full-thickness entry wound.
Closed globe injury: the eye globe is intact, but the seven rings of the eye have been classically described as affected by blunt trauma. Types include contusion and lamellar laceration; Open globe injury: there is a full thickness injury of the eye wall (cornea and sclera) It includes
Any aqueous leakage is revealed during the Seidel test confirms corneal perforation. A fluorescence strip is wiped over the wound. If the clear aqueous humor from the eye runs through the yellow stain, the patient tests positive for corneal perforation.
At this point, the fluorescein appears green in color. Any changes in color or surface of the fluorescence area indicate the presence of corneal leakage. The test is contraindicated in obvious globe rupture, Full-thickness eye laceration, and fluorescein hypersensitivity. [1]
Penetrating keratoplasty is preferred when the disease process involves irreversible damage not just to the corneal endothelium, but to other layers of the cornea as well. Compared to full-thickness keratoplasty, endokeratoplasty techniques are associated with shorter recovery times, improved visual results, and greater resistance to wound rupture.
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Penetrating keratoplasty: It is the traditional full thickness corneal transplant procedure, in which trephine (a circular cutting device) is used to cut opaque cornea, a similar-sized portion of the donor cornea is removed with a second trephine. The removed part of donor cornea is known as corneal button. The donor tissue is then sutured to ...
NYU Langone patient Aaron James underwent the first whole-eye and partial-face transplant following a near-death electrocution in 2021. Here, James is seen on Aug. 13, 2024. NYU Langone Health