Astanga Hrudaya
सिराशुक्रं मलैः सास्रैस्तज्जुष्टं कृष्णमण्डलम् । सतोददाहताम्राभिः सिराभिरवतन्यते ॥ २७ ॥
Sirasukra is caused by all the Mala (Dosha) associated with blood; vitiated by these, the Cornea becomes filled with veins, which produce pricking pain, burning sensation and coppery color,
english translation
sirAzukraM malaiH sAsraistajjuSTaM kRSNamaNDalam । satodadAhatAmrAbhiH sirAbhiravatanyate ॥ 27 ॥
hk transliteration by Sanscript