眼科精品教学课件（重庆医科大学）2五年制 沙眼与眼表疾病2013英文版彭艳丽.ppt

Trachoma and ocular surface disease
Ophthalmology department of the second affiliated hospital, Chongqing medical university
彭艳丽
liyanli62@
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Trachoma
Summary
It is chronic infective keratoconjunctivitis;
It was epidemic and the first cause of blindness before the 1950s in our country;
It declined dramatically after the 1970s and only appear in remote area now;
睑结膜
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upper palpebral
conjunctiva
upper fornical
conjunctiva
The ocular surface anatomy schematic diagram
lower palpebral
conjunctiva
bulbar conjunctiva
cornea
bulbar conjunctiva
lower fornical
conjunctiva
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Trachoma
Etiological factor
Chlamydia (antigenic type A、B、C、or Ba)
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Trachoma
Clinical manifestation
7 days, varies from 5-14 days
children: insidious onset
adults: acute or subacute
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Trachoma
Clinical manifestation
Three stages:
Acute stage:Acute conjunctivitis
Chronic stage:Inflammation subsidise, scarring and corneal pannus
Advanced stage:All kinds plications and sequela, and even blindness.
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1. Acute stage
symptoms
Photophobia(畏光)
tearing(流泪)
foreign body sensation (异物感)
Sticky secretion(分泌物)
Trachoma
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1. Acute stage
signs
Hyperemia (充血)
Papillar hypertrophy乳头增生
Follicle 滤泡
Corneal epithelitis (角膜上皮炎)
Trachoma
乳头
滤泡
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