内障
also: そこひ
Meanings
1
internal hindrance (Buddhism)
Only with reading ないしょう
Buddhist term for an inner obstacle or defilement that hinders enlightenment. Restricted to the reading ないしょう.
In Buddhism, worldly desires are considered one type of internal hindrance.
2
visual disorder from within the eye (e.g., glaucoma, amaurosis)
Historical medical term for any visual impairment caused by an internal eye problem, such as glaucoma or amaurosis. Now largely replaced by modern disease names. The reading そこひ is archaic; ないしょう is also used for this sense.
See also: 上翳
In the past, glaucoma was also called そこひ.
Descriptions of 'internal eye disorders' can be found in classical medical texts.