What does trachoma mean?
Trachoma is a disease of the eye caused by infection with the bacterium Chlamydia trachomatis. Blindness from trachoma is irreversible. It is a public health problem in 44 countries, and is responsible for the blindness or visual impairment of about 1.9 million people.
What is Trachomatous inflammation follicular?
Trachoma is a blinding disease caused by recurrent ocular Chlamydia trachomatis infection, an organism that produces chronic inflammation of the tarsal conjunctiva. This is characterised by sub-epithelial follicles, which may meet the definition for the sign trachomatous inflammation—follicular (TF) [1].
Is trachoma pink eye?
Trachoma is a chronic conjunctivitis caused by Chlamydia trachomatis and is characterized by progressive exacerbations and remissions. It is the leading cause of preventable blindness worldwide. Initial symptoms are conjunctival hyperemia, eyelid edema, photophobia, and lacrimation.
What is Trachomatous Trichiasis?
Trachomatous trichiasis is the result of multiple infections from childhood with Chlamydia trachomatis, which causes recurrent chronic inflammation in the tarsal conjunctiva. This produces conjunctival scarring, entropion, trichiasis, and ultimately blinding corneal opacification.
How is trachoma caused?
Caused by the bacterium Chlamydia trachomatis, trachoma is easily spread through direct personal contact, shared towels and cloths, and flies that have come in contact with the eyes or nose of an infected person.
How trachoma is diagnosed?
Your doctor can diagnose trachoma through a physical examination or by sending a sample of bacteria from your eyes to a laboratory for testing. But lab tests aren’t always available in places where trachoma is common.
Why do eyelashes turn inward?
Entropion: The eyelid loses its normal elasticity and flips or folds inward. This is sometimes due to age or being overweight. It is seen more commonly in adults. Injury: If the eyelid is torn or injured, the position of the eyelashes may change and grow inward.
What is the treatment of trichiasis?
Management options include epilation, electrolysis, radiofrequency ablation, laser photoablation, cryotherapy and surgical removal of the offending cilia. Treatment is made by the clinician based upon the number, distribution and severity of the trichiasis.
Which is the best definition of a metaphor?
Metaphor is a poetically or rhetorically ambitious use of words, a figurative as opposed to literal use. It has attracted more philosophical interest and provoked more philosophical controversy than any of the other traditionally recognized figures of speech.
Is there such a thing as a contracted metaphor?
Literary theorists regularly acknowledge the existence of extended metaphors, unitary metaphorical likenings that sprawl over multiple successive sentences. There are also contracted metaphors, metaphors that run their course within the narrow confines of a single clause or phrase or word.
What happens when you use metaphor to talk about two things at once?
When we resort to metaphor, we contrive to talk about two things at once; two different and disparate subject matters are mingled to rich and unpredictable effect. One of these subject matters is already under discussion or at least already up for consideration when a speaker resorts to metaphor in the first place.
Which is the best example of a mixed metaphor?
Mixed metaphors can be pretty funny; the great Yogi Berra was famous for his “Yogi-isms,” which often contained bewilderingly mixed metaphors that still managed to get his point across: Even Napoleon had his Watergate.