| Autor: |
Young A; From the Section of Neurology (A.Y., J.L.J.), Department of Internal Medicine and Department of Ophthalmology (J.L.J.), University of Manitoba; and CIADS Research (J.L.J.), Winnipeg, Canada., Johnston JL; From the Section of Neurology (A.Y., J.L.J.), Department of Internal Medicine and Department of Ophthalmology (J.L.J.), University of Manitoba; and CIADS Research (J.L.J.), Winnipeg, Canada. |
| Jazyk: |
angličtina |
| Zdroj: |
Neurology [Neurology] 2024 Mar 26; Vol. 102 (6), pp. e209260. Date of Electronic Publication: 2024 Feb 20. |
| DOI: |
10.1212/WNL.0000000000209260 |
| Abstrakt: |
Myasthenia gravis (MG) has been described as a great mimicker of other neurologic and ocular motility disorders, including centrally mediated ophthalmoplegia. For example, ocular myasthenia gravis (ocular MG) may cause impaired binocular visual acuity for near vision due to reduced accommodation or for distance vision due to accommodative excess. Notably, accommodative excess due to ocular MG is rare, but may occur with exotropia, with or without diplopia. We report 2 cases of ocular MG: First, a 32-year-old man with exotropia, bilateral hypometric and slowed adducting saccades with dissociated abducting nystagmus, miosis, and decreased distance vision in his right eye; second, a 45-year-old man with similar ocular motor deficits, miosis, and myopia. Both patients showed ocular motor deficits which appeared to localize to the pons but were instead due to ocular MG. Ocular MG should be considered in patients who present with reduced visual acuities due to any disruption in accommodation. Any ocular motor deficit, even if appearing to be centrally mediated or occurring without ptosis, may be caused by ocular MG. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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