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Abstract: Chronic (neuropathic) corneal pain and blepharospasm

Chronic (neuropathic) corneal pain and blepharospasm: five case reports.
Pain and focal dystonias have been associated with chronic pain conditions such as complex regional pain syndrome. Corneal pain, frequently known as "dry eye", may be a neuropathic pain condition with abnormalities of the nerve plexus. Here we present 5 case histories of patients with defined corneal pain (with associated neuropathic features) and objective measures of changes in the nerve plexus and associated blepharospasm. A putative relationship between pain and blepharospasm suggests potential involvement of the basal ganglia in both these conditions.

2011 Jul 11. [Epub ahead of print]
Borsook D, Rosenthal P.
Center for Pain and the Brain, McLean Hospital, Massachusetts General Hospital, and Children's Hospital of Boston, Harvard Medical School, Boston, MA, USA.
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