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Updated: Jan 30, 2026

Primed Mycobacterial Uveitis PMU as a Model for Post-Infectious Uveitis
Published on: December 17, 2021
BISPHOSPHONATE-INDUCED BILATERAL ANTERIOR UVEITIS AND CHOROIDAL EFFUSIONS WITH SECONDARY ANGLE CLOSURE
Zheng Xian Thng1, Zhenghao Kelvin Li, Nicola Yi'an Gan
1Department of Ophthalmology, National Healthgroup Eye Institute, Tan Tock Seng Hospital, Singapore.
Purpose:
To report a case of bisphosphonate-induced bilateral anterior uveitis and choroidal effusions with secondary angle closure in a 64-year-old female patient.
Methods:
Observational case report.
Results:
A 64-year-old woman with history of scleroderma and antiphospholipid syndrome, presented with bilateral painless blurring of vision after commencement of alendronate. Clinical examination revealed bilateral anterior uveitis and choroidal effusions with resultant secondary angle closure in the left eye. Ultrasound biomicroscopy showed bilateral anteriorly rotated ciliary bodies. There was also a -2D myopic shift in the left eye. On drug cessation, complete resolution was seen within 2 weeks.
Conclusion:
In the absence of other plausible etiologies and with recent commencement of a new drug, we postulate that the anterior uveitis and choroidal effusions are likely due to alendronate. This is further supported by complete resolution of the inflammation and effusions once alendronate was withheld.
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