Pterygium

Japanese: pterygium
Pterygium

…In addition to these, trachoma was once a typical form of conjunctivitis, but its occurrence has drastically decreased in Japan. (3) Other diseases A conjunctival disease caused by external stimuli is pterygium. It is caused by the conjunctiva growing on the cornea, mainly from the nose side and sometimes from the ear side. It is common among people who live by the sea or who work outdoors, so it is presumed to be caused by external factors such as exposure to wind. …

*Some of the terminology that mentions "pterygium" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…これらのほかに,結膜炎の代表的なものとして,かつてはトラコーマがあったが,日本では激減している。(3)その他の病気 外的刺激によっておこる結膜疾患として翼状片pterygiumがある。おもに鼻側,ときに耳側からも結膜が角膜上にまで増殖するもので,海浜の住民や戸外での業務に従事する人などに多いことから,風にさらされるなどの外的要因が原因と推定される。…

※「pterygium」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

<<:  Pterostyrax hispidus (English spelling)

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