Getting to the Point: Point-Spread Function Brings New Dimension to Refracting

In a world of digitized lenses, precision is key when conducting subjective refractions. Adopting the PSF Refractor from Vmax Vision (Maitland, Fla.), which uses a point-spread function, has allowed us deliver accurate prescriptions for patients measured in increments of 0.05D, and patients have taken notice.

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