Astanga Hrudaya
अत्युत्सेधावगाढं वा साश्रु नाडीव्रणावृतम् । पुराणं विषमं मध्ये विच्छिन्नं यच्च शुक्रकम् ॥ ३१ ॥ पञ्चेत्युक्ता गदाः कृष्णे साध्यासाध्यविभागतः। ३१ १/२।
that which is slightly red, that which is greatly elevated or greatly depressed with copious tears flowing out, surrounded by sinus ulcers, which is chronic, uneven, torn in the center and that having dots / sports should be rejected. Thus, were described the five diseases of the Krsna (black portion/ cornea), classified into curable incurable diseases.
english translation
atyutsedhAvagADhaM vA sAzru nADIvraNAvRtam । purANaM viSamaM madhye vicchinnaM yacca zukrakam ॥ 31 ॥ paJcetyuktA gadAH kRSNe sAdhyAsAdhyavibhAgataH। 31 1/2।
hk transliteration by Sanscript