• Measures 14mm with 1mm graduations

  • Measure sulcus diameter or capsular bag size

  • Line up Purkinje image

  • Take radius x 2 for diameter and subtract 0.50 mm to approximate iris size for trephination

Trephine Centering Device:

• Centers trephine blade on artificial iris for precise cutting

  • Adjustable centering blades for various trephine sizes