A compact & light weight machine measures highly accurate axial length with anterior chamber depth, lens thickness & vitreous length of eye.Specially designed software eliminates corneal compression readings. Facility to enter personal constant & new velocities for new IOL materials or silicon filled eyes. Pre defined eye types handles most situations as Phakic, Pseudophakic, Semidense, Dense cataract. Automatic measurement mode eliminates requirement of foot switch for easy operation.