21
3
OPERATING PROCEDURE
3.1
Operation Flow
Device power ON
“3.2 Measurement Method” (page 22)
Turn on power to the device and change the parameter settings of the device if necessary.
Prepare the patient.
Measurement
“3.3 AR (refractive error) and KM (corneal curvature radius) Measurements” (page 30)
“3.4 Uncorrected Visual Acuity Measurement (UCVA)” (page 36)
“3.5 Corrected Visual Acuity Measurement (Subjective Refractive Error Measurement)” (page 38)
“3.5.1 Distance visual acuity measurement” (page 39)
“3.5.2 Near visual acuity measurement” (page 42)
“3.5.3 Contrast visual acuity / glare visual acuity measurement” (page 45)
“3.6 Retroillumination Image Observation” (page 47)
“3.7 Accommodation Measurement” (page 49)
“3.8 Manual Measurement” (page 51)
“3.8.1 CS (Corneal Size) measurement” (page 51)
“3.8.2 PS (Pupil Size) measurement” (page 53)
“3.8.3 PD (Pupillary Distance) measurement” (page 55)
“3.9 Sagittal Measurement” (page 57)
Printing
“3.11 Measured Value Printing” (page 61)
When transferring data to the connected devices
“3.13 Operation when Peripheral Devices are Connected” (page 66)
Device power OFF
“3.2.3 Device shutdown” (page 29)
To prescribe spectacle lenses or such for correction of visual acuity, the patient’s vision is subjectively tested with
reference to AR-measured data.
Summary of Contents for ARK-1S
Page 1: ...AUTO REF KERATOMETER AUTO REF KERATOMETER ARK 1s ARK 1s OPERATOR S MANUAL OPERATOR S MANUAL ...
Page 6: ...IV ...
Page 76: ...70 OPERATING PROCEDURE Operation when Peripheral Devices are Connected ...
Page 112: ...106 SPECIFICATIONS AND TECHNICAL INFORMATION EMC Electromagnetic Compatibility ...