S4OPTIK SL-Y100 Manual Refractor

The S4OPTIK SL-Y100 minus cylinder vision tester features synchronized cross cylinders, fully coated lenses, a full refraction range from -19.00D to +16.75D in sphere and to -8.00D cylinder (with accessory lens), and a full complement of auxiliary lenses. It’s comfortable feel and smooth operation will allow fast and easy refractions.



  • Minus Cylinder
  • Coated Lenses
  • Synchronized Cross Cylinders
  • Comfortable Feel & Smooth Operation