APC AR1100 Manual del operador descargar pdf (Pagina 41)

OPERATING PROCEDURES: Preparation for Measurement

4) Adjust the height of the chinrest by the chin-

rest up/down button ( , ) until the cen-

ter level of the patient's eye aligns with the

eye level marker.

Before adjusting the height of the chinrest, inform

the patient that the chinrest moves up and down.

If the chinrest is at the upper (or lower) mechanical

limit, the upper limit mark (or lower limit mark

) is displayed on the screen.

6 Perform the selected measurement.

For the contents of each measurement, see:

“2.5 AR (refractive error) and KM (corneal curvature radius) Measurements” (page 39)

“2.5.1 AR (refractive error) and KM (corneal curvature radius) measurements: AR/KM measure-

ment mode” (page 39)

“2.5.2 AR (refractive error) Measurement: AR Measurement Mode” (page 49)

“2.5.3 KM (corneal curvature radius) Measurement: KM Measurement Mode” (page 51)

“2.6 NT (Tonometry) Measurement: NT Mode” (page 61)

In RKT mode, the measuring unit switches during the transition from the R/K to NT measurement.

For details, see “2.2.2 Switching between R/K measurement and NT measurement” (page 31).

• When the TONOREF II displays a thumbnail in the R/K measurement, the limit mark ( ,

) is covered and cannot be seen.

• Instruct the patient not to blink during measurement. Additionally, instruct the patient not to

blink and open his/her eyes immediately before measurement to avoid measurement

failure.

• Instruct the patient to open both eyes wide during measurement.

Closing one eye may cause an unstable fixation and the other eye will not open wide.

Eye level marker

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ᵐᴨǽᴭ

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ᵀᴪǽᴭ

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ᴥǽᴦ

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Limit mark

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APC AR1100 Manual del operador Pagina 41