Intacs Intacs is the trademark name for micro-thin implantable intracorneal ring inserts - a procedure used to improve mild myopia, also studied to determine its usefulness in reducing hyperopia, astigmatism and helping improve vision for those with keratoconus. They are an alternative to laser surgery, and are tiny, crescent-shaped prescription devices made of plastic polymer … Continue reading What are Intacs for keratoconus?