American Optical 30100 Keratometer

This American Optical 30100 is a used manual keratometer representing the classic design that helped define keratometry practice for generations of eye care professionals. It measures corneal curvature through mire reflection and manual alignment, giving practitioners the radius and axis values needed for contact lens fitting and astigmatism evaluation. The solid mechanical build typical of American Optical instruments has helped this model remain functional and relevant in clinics long after its original release. In clinical use, the 30100 supports routine keratometry for contact lens fitting, monitoring of corneal astigmatism, and pre-surgical baseline measurement. Because it relies on manual technique rather than automated sensors, it remains popular with practitioners and educators who value hands-on control over the measurement process. This makes it a common choice for optometry training programs as well as private practices that prefer traditional keratometry methods. As a used unit, this American Optical 30100 has been checked for smooth operation of its mires and focusing mechanism. It is offered as an affordable, dependable option for practices or schools wanting a proven manual keratometer for everyday corneal assessment.