Astanga Hrudaya
वायुः क्रुद्धः सिराः प्राप्य जलाभं जलवाहिनीः । अश्रु स्रावयते वर्त्मशुक्लसन्धेः कनीनकात् ॥ १ ॥
Vata undergoing increase, getting localized in the channels of water (tears) causes excess flow of tears, resembling water from the joints of the lids and the white portion (sclera), through the Kaninaka (inner canthus).
english translation
vAyuH kruddhaH sirAH prApya jalAbhaM jalavAhinIH । azru srAvayate vartmazuklasandheH kanInakAt ॥ 1 ॥
hk transliteration by Sanscript