Sts. Cosmas and Damian of Rome are counted as intercessors for persons with visual impairments. But they are also very familiar to Eastern Orthodox Christians, for they were from the East. They are commemorated in the Orthodox Church on July 1.
These brothers were physicians; the Holy Spirit also granted them the gift of healing through prayer illnesses of soul and body. That they were “unmercenary” means that they would take no payment for neither their medical efforts nor for their intercessory prayers.
They were martyred for Christ during the reign of Emperor Carinus in 284 A.D.
By their generosity and exceptional kindness to all, the brothers converted many to Christ. The brothers told the sick, “It is not by our own power that we treat you, but by the power of Christ, the true God. Believe in Him and be healed”. Since they accepted no payment for their treatment of the infirm, the holy brothers were called “unmercenary physicians”.