Intrastromal Corneal Ring Segments (INTACS) is a non-laser procedure that involves implanting two tiny plastic arcs in the cornea. These crescents are placed in the outer edge of the cornea and opposite each other. When placed, INTACS stretch the cornea to make it flatter.
Since the procedure is used to flatten a steep cornea, nearsighted patients benefit the most. The level of nearsightedness should be mild, and the patients should have little or no astigmatism. The advantage of this procedure is that the ring segments can be removed or exchanged. INTACS are also used as a treatment for keratoconus (link to the keratoconus patient education video) patients.
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