Premium Monovision Versus Other Types of Monovision and Bilateral Trifocal Implantation.

"The following clinical indexes are evaluated:~1. Binocular uncorrected distant visual acuity (bUD-VA) using the Greek version of the Early Treatment Diabetic Retinopathy Study Chart at four meters distance~2. Binocular uncorrected reading acuity at 60cm (bUI-RA) and at 40cm (bUN-RA), and~3. Binocular uncorrected critical print size at 60cm (bUI-CPS) and at 40cm (bUN-CPS).~All near and intermediate vision parameters are obtained using the Democritus Digital Acuity Reading Test (DDART), which is based on the Greek version of MNREAD.~Contrast sensitivity are evaluated with the Pelli-Robson test."