KERATOMETER MEASURING TECHNIQUE



Aligning the Instrument

The patient's eye level should be in 
alignment with the pointers on the 
side of the instrument.  To do this the 
instrument is rotated to one side so 
the examiner can sight along side the 
instrument aligning the pointer and 
white horizontal axis line (like 
sighting a gun) with the center of 
the patient's eye.

Be sure to loosen the lock on the 
left side of the instrument to allow 
the instrument to rotate side-to-side.