astigmatism – greater refractive power in the horizontal than the vertical meridian of the eye – is

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Clinicon Refraction Phoroptor - Plus Cylinder (Rental Only) Medical Exam Chair astigmatism – greater refractive powerThe Clin icon II Refraction System is designed to allow technicians to perform refraction. Retinoscopy skills are not required and technicians learn the oasic technique in one day. Included in the system are: conversion of your standard ultramatic phoropter to Clinicon's crossed cylinder specifications; a variable crossed cylinder zoom tens; a Vernier axis dial; Clinicon's portable computer; and in office training of your personnel. Refurbished Clin