Online calculator to promote safe Glaucoma Drainage Device (GDD) distance from optic nerve in pediatric or short eyes.
Enter values below and press "Calculate!"
Demographic Information (optional):
Physician:
Patient Initials:
Ocular data:
Axial Length:
mm
Horizontal white-to-white (WTW):
mm
GDD type:
Ahmed FP7
Ahmed ClearPath 250
Ahmed ClearPath 350
BVT 250
BVT 350
Molteno 3 GL
Molteno 3 GS
Other - AP Length 12 mm
Other - AP Length 13 mm
Other - AP Length 14 mm
Other - AP Length 15 mm
Other - AP Length 16 mm
Quadrant:
Supero-Temporal
Supero-Nasal
Infero-Temporal
Infero-Nasal
Desired distance from nerve:
mm
Desired distance from limbus:
mm
Calculate!
