Pinguecula refers to benign degenerative conjunctival lesions, usually found on the nasal side of each eye.
Published figures of prevalence range from 11 - 75%, and is linked to age and geographical location. Most people over 70 show some signs.
The exact cause has not been determined, but It's believed to be associated with excess exposure to UV light - and is more prevalent in hot dry sunny regions of the world. It may also be associated with dry air, dust, and the wearing of contact lenses
More info College of Optometrists
Ideas for new topics, and suggested additions / corrections for old ones, are always welcome.
If you have skills or interests in a particular field, and have suggestions for Wikenigma, get in touch !
Or, if you'd like to become a regular contributor . . . request a login password. Registered users can edit the entire content of the site, and also create new pages.
( The 'Notes for contributors' section in the main menu has further information and guidelines etc.)
You are currently viewing an auto-translated version of Wikenigma
Please be aware that no automatic translation engines are 100% accurate, and so the auto-translated content will very probably feature errors and omissions.
Nevertheless, Wikenigma hopes that the translated content will help to attract a wider global audience.