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Auto Refractor / Keratometer Nidek ARK-760A

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Auto Refractor / Keratometer Nidek ARK-760A
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The ARK-760A is an auto ref/keratometer which is used to measure sphere, cylinder powers and

axis of the corrective lens to aid the patient’s vision properly.

The instrument objectively measures the refractive power of the patient eye with infrared rays

and it subjectively measures the refractive power by using the built-in charts and corrective

lenses.

This instrument has a main body and a measuring unit integrated on one base. On the base is a

chin rest on the patient’s side and a printer on the operator’s side which makes an output of

measurement results. On the main body is a TV monitor, a control panel, and a joystick, which

are used to make alignments or manipulation. The measuring unit has a measuring window,

where the patient looks into and where the infrared ray radiates on the patient’s eye. Also, there

is an auto-tracking mechanism which moves the measuring unit to follow eye movement, and an

auto-shot function, which makes serial measurement start automatically when the instrument

becomes correctly focused.

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