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Updated: May 24, 2026

Corneal Confocal Microscopy: A Novel Non-invasive Technique to Quantify Small Fibre Pathology in Peripheral Neuropathies
Published on: January 3, 2011
Tamoxifen keratopathy as seen with in-vivo confocal microscopy
Sonali Tarafdar1, Lik Thai Lim, Cian E Collins
1Tennent Institute of Ophthalmology, Gartnavel General Hospital, Glasgow, UK.
Abstract:
Tamoxifen is a triphenylethylene non-steroidal oestrogen antagonist widely used in oestrogen receptor-positive breast cancer, with well-documented ocular side-effects. Here we report a corneal confocal microscopy finding of a patient on low-dose tamoxifen. We believe that this is the first case report of a patient on low-dose tamoxifen with demonstrable corneal stromal crystalline deposits with confocal microscopy, but clinically asymptomatic with unremarkable corneal findings on cursory slit lamp examination. In summary, confocal microscopy is a useful adjunct in monitoring tamoxifen crystalline keratopathy, and helps detect subclinical deposits not visible/detected on slit lamp examination.
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