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Abstract #5883 Published in IGR 2-1
Hypotony: What is it? How should we manage it?
Johnstone MAJournal of Glaucoma 2000; 9: 131-134
1. There are chronological presentations of hypotony with different etiologies. 2. Early hypotony is generally related to excessive drainage and can usually be prevented by appropriate surgical technique. 3. Late hypotony because of progressive bleb-thinning, diffuse or localized leakage is less predictable and less preventable. 4. An exact level of IOP, useful for the definition of hypotony does not exist. The best definition is probably that hypotony that causes reduction of visual function. 5. The incidence of hypotonous maculopathy has been reported to be anywhere between 1.3 and 14%. 6. One of the latest studies on this subject by Suner et al. from the Palmberg group report 1.3%. 7. This recent low percentage shows that hypotonous maculopathy can be considerably reduced in frequency. 8. Hypotony treatment is discussed including pressure patching, large bandage contact lenses, autologous blood injection and conjunctival advancement after bleb excision. 9. It may be that a more recent study show reasonably predictable results of bleb excision and conjunctival advancement. This author states that, if this is indeed the case, we may embrace surgical intervention earlier and fear hypotony less and use antimetabolites more confidently.
Classification:
12.8.11 Complications, endophthalmitis (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
