The BC 900

The BC 900 is supplied with 10x oculars as standard and with these you can switch the magnification from 10 to 16x. Optional 25x oculars offer additional magnification of 25 and 40x.

This problem can occur when there is a high degree of corneal distortion i.e. heavy keratoconus. The triggering of the measurement can be control selected by depressing the RETURN key.