RECOMMENDED INSTRUMENTATION
Intraocular Ruler:
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:
Intraocular Ruler
Centers trephine blade on artificial iris for precise cutting
Adjustable centering blades for various trephine sizes
Trephine Centering Device