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Localized bulging of the sclera.
Synonym(s): scleral ectasia
[scler- + G. ektasis, an extension]
A bulging and thinning of the sclera, due to disease, trauma, atrophy or raised intraocular pressure. It may be total as in buphthalmos, or partial as in staphyloma. Syn. sclerectasia.
sclerectasia, scleral ectasia
a bulging state of the sclera; see also collie eye anomaly.