A narrow opaque band encircling the cornea, common in old age.
- ‘My arcus senilis of two years' duration disappeared completely after 18 months of atorvastatin (taken for a moderately raised serum cholesterol concentration).’
- ‘It appears more often in older adults (arcus senilis).’
- ‘The prevalence of arcus senilis increases with age in both sexes and occurs more frequently in men.’
- ‘A study of arcus senilis in Caucasian men and women is reported.’
- ‘In women arcus senilis is uncommon before the menopause.’
Latin, literally ‘senile bow’.
We take a look at several popular, though confusing, punctuation marks.