Small optic cup sizes among women using tamoxifen: assessment with scanning laser ophthalmoscopy.

Abstract:

PURPOSE:There is a substantial literature showing that the selective estrogen receptor modulator tamoxifen can block swelling-activated chloride channels, such as those in astrocytes. This study aimed to test the hypothesis that anatomic characteristics consistent with swelling may be measured within the optic nerve head (ONH) of tamoxifen users whose ONH appearance is considered within normal limits. METHODS:Indices of ONH topography were measured using the Heidelberg Retina Tomograph II (HRT) for two populations of women ages 40-69 years: (1) subjects using tamoxifen (20 mg/day) as adjuvant therapy after successful primary treatment for breast cancer and (2) control subjects not using any hormonal medication. All subjects had excellent visual acuity (with 20/20 or better in the test eye), and all appeared to be free of eye disease, as based on conventional photographic assessment. The study design was cross-sectional. The various ONH indices were assessed as functions of the duration of tamoxifen use. RESULTS:The optic cups of short-term tamoxifen users ( 2 years,

journal_name

Curr Eye Res

journal_title

Current eye research

authors

Eisner A,O'Malley JP,Incognito LJ,Toomey MD,Samples JR

doi

10.1080/02713680600602547

subject

Has Abstract

pub_date

2006-04-01 00:00:00

pages

367-79

issue

4

eissn

0271-3683

issn

1460-2202

pii

H574676X8H673726

journal_volume

31

pub_type

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