Vitreo-retinal traction and anastrozole use
Alvin Eisner1, Emily J Thielman, Julie Falardeau
1Casey Eye Institute, Oregon Health & Science University, Portland, USA. eisnera@ohsu.edu
Breast Cancer Research and Treatment
|August 21, 2008
Summary
Anastrozole medication may increase tractional forces on the eye, potentially affecting the retina. This study found differences in foveal shape in anastrozole users compared to controls, suggesting increased vitreo-retinal traction.
Area of Science:
- Ophthalmology
- Endocrinology
- Oncology
Background:
- Menopause is linked to an increased risk of intraocular tractional events like posterior vitreous detachments (PVDs).
- Anastrozole is a medication used in breast cancer treatment, and its potential ocular side effects are under investigation.
Purpose of the Study:
- To test the hypothesis that anastrozole use leads to heightened vitreo-retinal traction.
- To investigate the effect of anastrozole on foveal shape and retinal traction in postmenopausal women.
Main Methods:
- Retinal thickness and foveal shape indices were measured in three groups of amenorrheic women: anastrozole users, tamoxifen users, and a control group.
- Foveal shape was analyzed in subjects without posterior vitreous detachments (PVDs).
Main Results:
- Anastrozole users exhibited altered foveal shape, with the temporal distance to the foveal base being less than the nasal distance at a certain height.
- This specific foveal shape alteration was not observed in the control group, indicating a significant difference.
- Results for tamoxifen users were inconclusive.
Conclusions:
- The foveas of women using anastrozole appear to experience greater tractional forces compared to those not using hormonal medication.
- Anastrozole may influence vitreo-retinal biomechanics, warranting further investigation into its ocular effects.
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