Snellen rhymes with:
nelon, belen, bellon, carnegie-mellon, chelan, delane, ehlen, ellan, ellen, excelan, felan, felon, flewellen, helen, hellen, integrelin, jelen, kellan, kellen, lewellen, maclellan, magellan, mcclellan, mcclellen, mckellan, mclellan, mellen, mellon, melon, nelon, pelon, phelan, sellen, sellon, thelen, wehlan, wellen, whelan, yellen
Snellen sounds like:
scanlan, scanlin, scanlon, semolina, smallen, smallman, smolen, smolin, smullen, somalian, sumlin