USMLE Forum Archives - USMLE Step 3 - Optha: Involuntary closure
Optha: Involuntary closure
harry206 - 05-15-09 07:47
A 50-year-old Caucasian female presents to your office with a six month history of periodic involuntary closure of her right eye. The closure is provoked by bright light or cigarette smoke. Her past medical history is significant for osteoarthritis of her left knee. She takes naproxene occasionally. The attempt to check pupillary reaction induces prolonged closure of the right eye. Otherwise, the neurologic examination is normal. Which of the following is the next best step in the management of this patient?
harry206 - 05-15-09 07:47
A 50-year-old Caucasian female presents to your office with a six month history of periodic involuntary closure of her right eye. The closure is provoked by bright light or cigarette smoke. Her past medical history is significant for osteoarthritis of her left knee. She takes naproxene occasionally. The attempt to check pupillary reaction induces prolonged closure of the right eye. Otherwise, the neurologic examination is normal. Which of the following is the next best step in the management of this patient?
The correct answer and explanation will be available after you answer.
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#14
Re: Optha: Involuntary closure conym5 - 04-09-10 07:57 My answer is: c.
Botulinum toxin, a biological product, is injected into specific muscles where it acts to relax the muscles and reduce excessive muscle contractions.
#19
Re: Optha: Involuntary closure babbu5508 - 08-30-10 23:55 My answer is: c.
Botulinum toxin injections...the patient might be suffering from blepharospasm for which botulinum can be given which relieves spasm.
#26
Re: Optha: Involuntary closure babbu5508 - 02-22-11 10:36 periodic involuntary closure of her right eye...blepharospasm............... best treated by c. Botulinum toxin injections....
#27
Re: Optha: Involuntary closure sudha2015 - 03-31-11 12:11 My answer is: c.
The closure is provoked by bright light or cigarette smoke. Her past medical history is significant for osteoarthritis of her left knee. She takes naproxene occasionally. The attempt to check pupillary reaction induces prolonged closure of the right eye
#28
Re: Optha: Involuntary closure babbu5508 - 03-31-11 12:46 Botulinum toxin is a protein that helps stop muscle spasms when it is injected directly into the muscle. Muscle spasms are caused by chemical messages sent to the muscles from nerves. These messages tell the muscles to contract (to tighten up). Botulinum toxin blocks these messages.
#32
Re: Optha: Involuntary closure humararafiq - 05-17-11 06:06 My answer is: c.
Hypotonic smooth muscles
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