Presbyopia implant in eye, aka PIE, has led to a revolution in vision restoration. The procedure has eclipsed Lasik as the No. 1 choice to improve vision in people over 50.
Like a good tailor, a good surgeon knows that one size does not fit all. This holds true even with PIE. There are four classes of FDA-approved PIE: accommodative, extended depth of field, trifocal and multifocal.
Accommodative: This class of PIE was the first to be approved by the FDA in 2005. It heralded the advent of PIE.
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