DO TRUFFLES CURE EYE DISEASE?
Bukhari reports The Prophet (pbuh) saying that juice of truffles is "medicine for the
eye":

Bukhari, Book 23, Number 5084:
"Sa'id b. Zaid b. 'Amr b. Nufail reported: I heard Allah's Apostle (may peace be upon him) as saying: TRUFFLES ARE A KIND OF 'MANNA' AND THEIR JUICE IS A MEDICINE FOR THE EYES."

Bukhari, Book 23, Number 5085:
"Sa'id b. Zaid reported: I heard Allah's Messenger (may peace be upon him) as saying: TRUFFLES ARE A KIND OF BLESSING AND THEIR JUICE IS A MEDICINE FOR THE EYES. . . .."

Bukhari, Book 23, Number 5086:
"Sa'id b. Zaid b. 'Amr b. Nufail reported Allah's Messenger (may peace be upon him) as saying: TRUFFLES ARE A KIND OF 'MANNA' WHICH ALLAH THE GLORIOUS AND EXALTED, SENT DOWN UPON THE PEOPLE OF ISRAIL, AND ITS JUICE IS A MEDICINE FOR THE EYES."

Bukhari, Book 23, Number 5087:
"Sa'id b. Zaid reported Allah’s Messenger (may peace be upon him) as saying: TRUFFLES ARE A KIND OF 'MANNA' WHICH ALLAH SENT DOWN UPON MOSES AND THEIR JUICE IS A MEDICINE FOR THE EYES."