Double peak sign on ultrasonography: A new prognostic marker before surgery for white cataract

Autor: Bhagabat Nayak, C S Lalitha, Bruttendu Moharana, Bijnya B Panda
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Indian Journal of Ophthalmology, Vol 72, Iss Suppl 4, Pp S712-S714 (2024)
Druh dokumentu: article
ISSN: 0301-4738
1998-3689
25756494
DOI: 10.4103/IJO.IJO_2418_23
Popis: A mature, hypermature, or white cataract needs posterior segment evaluation before surgery for prognostification. Ultrasonography is the preferred method for this. White cataract or intumescent cataract risks intraoperative capsulorhexis running out leading to devastating complications due to high intralenticular pressure. Altghough sligh-lamp examination before surgery can gives clue regarding fluid pockets under anterior capsule in these types of cataract, fluid in posterior compartment of lens can be detected by ultrasonography. The author here described a new sign, the double peak sign which can predict the high intra-lenticular pressure especially in posterior compartment of the lens. So if it detected before surgery, all precautions can be taken during surgery to prevent complications. The A-scan overlay on the B-scan in ultrasonography can detect the hypoechoic area corresponding to the lequified cortex in between solid lens nucleus and posterior capsule, so giving rise to the double peak sign which is described here as an innovation.
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