ArticleJournal of ophthalmology2026
Factors Influencing the Conversion of Ocular Myasthenia Gravis to Generalized Myasthenia Gravis: A Retrospective Cohort Study.
Article in Journal of ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Factors Influencing the Conversion of Ocular Myasthenia Gravis to Generalized Myasthenia Gravis: A Retrospective Cohort Study.Journal of ophthalmology · 2026Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: The conversion rate of ocular myasthenia gravis (OMG) to generalized myasthenia gravis (GMG) lacks definitive predictors. Methods: This retrospective cohort study analyzed data collected at Siriraj Hospital between January 2007 and December 2019 to identify factors influencing OMG generalization and the time to conversion. The records of 200 OMG patients were reviewed and both acetylcholine receptor antibody (AChR Ab)-positive and AChR Ab-negative patients were included. Results: Seventy-eight (39%) developed GMG, with a median conversion time of 16 months (IQR 7.88, 33.75) and a 2-year conversion rate of 25.5%. AChR Ab positivity (adjusted HR 2.88, 95% CI 1.79-4.63), thymic abnormalities (adjusted HR 2.30, 95% CI 1.41-3.74), smoking (adjusted HR 1.78, 95% CI (1.04, 3.03), and pyridostigmine dosages > 180 mg/day (adjusted HR 2.33, 95% CI 1.41-3.87) were significantly associated with shorter conversion time. Conclusion: Thymic abnormalities and positive AChR Ab warrant routine assessment in all OMG patients. Smoking cessation is crucial, as it may impact conversion risk and time. Unlike previous findings suggesting a protective role of pyridostigmine, our data indicate a strong association between high-dose pyridostigmine and conversion to GMG, likely reflecting underlying disease severity. This underscores the need for individualized risk assessment in OMG management.
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