170424-N-TR165-111 SAN DIEGO (April 24, 2017) Cmdr. John Cason, program director at Navy Refractive Surgery Center, performs a Kamra corneal inlay procedure for the treatment of presbyopia at the Naval Training Center Medical Branch Clinic. The KAMRA corneal inlay is a mini-ring with an opening in the center that sits in the first few layers of the eye known as the cornea, focusing light coming into the eye restoring near vision. This is the first procedure of this kind done within the Department of Defense. ( Navy Photo by Mass Communication Specialist 2nd Class William Cousins/Released)

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