A young woman presented with blurred vision due to anticholinergic syndrome. We highlight the importance of considering this condition in the context of multiple medications and increased anticholinergic burden. The documented pupil abnormality gives an opportunity to review the syndrome of the reverse (inverse) Argyll Robertson pupil (preserved pupil light response with loss of accommodation). We review other situations in which the reverse Argyll Robertson pupil may occur and its possible mechanism in this case.
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Contributors LM and SHW are the clinicians involved in the care. LM wrote the first draft of the manuscript, reviewed and edited by SHW, substantial intellectual guidance and edits from GTP, figure 1 by GTP.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned. Externally peer reviewed by Christian Lueck, Canberra, Australia.