What is Expulsive hemorrhage?
Spontaneous expulsive choroidal hemorrhage is a serious ocular condition where expulsion of the intraocular contents occurs through the anterior eye wall.
What causes Suprachoroidal hemorrhage?
Suprachoroidal hemorrhage (SCH) is a rare, but potentially vision threatening pathology that may manifest as a consequence of intraocular surgery. It occurs when blood from the long or short ciliary arteries fills within the space between the choroid and the sclera.
What is choroidal haemorrhage?
Hemorrhagic choroidal detachment is a hemorrhage in the suprachoroidal space or within the choroid caused by the rupture of choroidal vessels. This can occur spontaneously (rare), secondary to ocular trauma, secondary to eye surgery, or during the post-operative period.
What causes hemorrhage after cataract surgery?
A subconjunctival hemorrhage commonly follows cataract surgery. This occurs when blood is trapped in the subconjunctival space. If the IOP is not elevated, no treatment is required. Patient reassurance, instruction and clinical observation is appropriate.
How much bleeding is normal after cataract surgery?
The blood will clear over a week or two. Hyphema: Sometimes, there may be bleeding into the front chamber of the eye (the anterior chamber). This is usually from a burst blood vessel in the iris or from the ciliary body.
How can you tell the difference between TASS and endophthalmitis?
Onset, rapidity of symptom progression and the presence or absence of pain and vitritis are the key differentiating features between TASS and infectious endophthalmitis; however, both conditions can present with poor visual acuity, corneal inflammation and significant anterior chamber reaction.
What are the layers of the choroid?
The choroid is a thin, pigmented vascular network consisting of three layers (from inner to outer): choriocapillaris, stroma, and lamina fusca. The choriocapillaris provides nutrients to the RPE and the outer third of the retina.
How do you drain a choroidal effusion?
The surgical technique for choroidal drainage involves deepening the anterior chamber with balanced salt solution. Some surgeons use anterior chamber continuous irrigation, whereas others intermittently re-form the chamber with balanced salt solution during surgery.
Where is choroid located?
the eye
A thin layer of tissue that is part of the middle layer of the wall of the eye, between the sclera (white outer layer of the eye) and the retina (the inner layer of nerve tissue at the back of the eye). The choriod is filled with blood vessels that bring oxygen and nutrients to the eye.
Choroidal haemorrhage or effusion Choroidal haemorrhage or effusion occurs in approximately 0.1% of cases and causes a forward shift of the iris-lens diaphragm, with prolapse of posterior structures and a change in the red reflex. Effusion may be a precursor to haemorrhage, although it may be difficult to differentiate the two.
What is spontaneous expulsive choroidal hemorrhage?
Spontaneous expulsive choroidal hemorrhage is a serious ocular condition where expulsion of the intraocular contents occurs through the anterior eye wall.
What is effusion in choroidal haemorrhage?
Choroidal haemorrhage or effusion occurs in approximately 0.1% of cases and causes a forward shift of the iris-lens diaphragm, with prolapse of posterior structures and a change in the red reflex. Effusion may be a precursor to haemorrhage, although it may be difficult to differentiate the two.
What is the pathophysiology of postoperative hemorrhage after cryotherapy?
Hemorrhage in the postoperative period may be caused by a delayed expulsive choroidal hemorrhage, probably resulting from necrosis of a blood vessel induced by the original cryotherapy or from erosion of an implant or explant.