N K Basak

Optical versus Ultrasonographic Axial Length Measurement before Cataract Surgery: A Comparison across Short, Normal and Long Eyeballs.

Inaccurate biometry results can cause the worst postoperative visual outcome. An error of 1mm in the axial length measurement causes a refractive error of 2.5 D in an average eye of 23.5 mm, 1.75 D in 30 mm and 3.75 D in a 20 mm eye. The difference is much more in very short eyes...