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60 U on densitometry scale. This hanging drop or tear drop sign on Scheimpug photography is probably created by preexisting PCD with herniation of dense posterior plaque through it.
CommentThis simulated posterior lenticonus producing hanging drop/tear drop sign should be taken as diagnostic of PCD in posterior polar cataracts. To our knowledge, this is the rst report of PCD with coexistent posterior polar cataract being characterized on Scheimpug imaging.
Conict of interestThe authors declare no conict of interest.
References1 Osher RH, Yu BC-Y, Koch DD. Posterior polar cataracts
(a predisposition to intraoperative posterior capsular rupture). J Cataract Refract Surg 1990; 16: 157162.2 Allen D, Wood C. Minimizing risk to the capsule during surgery for posterior polar cataract. J Cataract Refract Surg 2002; 28(5): 742744.3 Konstantopoulos A, Hossain P, Anderson DF. Recent advances in ophthalmic anterior segment imaging: a new era for ophthalmic diagnosis? Br J Ophthalmol 2007; 91(4): 551557.4 Congdon NG, Chang MA, Botelho P, Stark WJ, Datiles MB. Cataract: Clinical types. Duanes Ophthalmol vol. III Chapter 73, 2006, CD ROM.5 Anon. Consultation section. Cataract surgical problem.
J Cataract Refract Surg 1997; 23: 819824.
R Arora, S Mehta, JL Goyal, S Jain and D Gupta
Department of Ophthalmology, Guru Nanak Eye Centre and Maulana Azad Medical College, New Delhi, IndiaE-mail: [email protected]
Eye (2010) 24, 737738; doi:10.1038/eye.2009.134; published online 12 June 2009
Sir,Management of inadvertent peribulbar injection of acetazolamide: a case report
Drug errors can have severe consequences. Here we describe an inadvertent peribulbar injection of acetazolamide instead of local anaesthetic agent, prior to cataract surgery.
Case reportA 63-year-old male with glaucoma was to undergo right cataract surgery under peribulbar anaesthesia. Intravenous (IV) acetazolamide (500 mg in 10 ml) was planned for intra-operative use but had been drawn up pre-operatively. Eight millilitres of this solution were inadvertently given as a peribulbar injection by the anaesthetist (not one of the authors) instead of the anaesthetic agent. The patient complained of
disproportionate pain during injection. The mistake was recognized and surgery deferred. On examination vision was maintained, but ocular motility was reduced by 50% in all directions of gaze. There was marked lid oedema with mild conjunctival chemosis. The patient was promptly given 200 ml of IV mannitol 20% to reduce the intraorbital pressure. An...