NIDEK

Refractometers and Keratometers

ARK-530A and ARK-510A Operators Manual Nov 2010

Operators Manual

146 Pages

Table of Contents 1. BEFORE USE... 1 1.1 Outline of the Device...1 1.2 Intended Use...1 1.3 Principles...2 1.4 Configuration...3 1.5 Measurement Screen Layout...8 1.6 Labels...14 1.7 Checking Contents...16 1.8 Before First Use...17  2. OPERATING PROCEDURE... 21 2.1 Operation Flow...21 2.2 Preparation for Measurement...22 2.2.1 2.2.2 2.2.3 2.2.4  Checking the measuring window cleanliness at device start-up...29 Switching to manual mode...30 Sleep mode...31 Finishing the measurement...31  2.3 AR (refractive error) and KM (corneal curvature radius) Measurements: AR/KM Measurement Mode...32 2.3.1 2.3.2 2.3.3  Cataract measurement mode...41 Measurement ring image display...42 KM peripheral measurement...43  2.4 AR (refractive error) Measurement: AR Measurement Mode...44 2.5 KM (corneal curvature radius) Measurement: KM Measurement Mode...46 2.6 Vision Comparison Function...49 2.6.1  Importing LM Data...53  2.7 CS (Corneal Size) Measurement...54 2.8 PS (Pupil Size) Measurement...56 2.9 PD (Pupillary Distance) Measurement...58 2.9.1 2.9.2  Auto PD measurement...58 Manual PD Measurement...58  2.10 Sagittal Radius Measurement...60 2.11 Measuring Hard Contact Lenses...63 2.12 Printing...65 2.12.1 Printing measured data...65 2.12.2 Eyeprint...68  XI
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