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AUTO REF/KERATOMETER

NIDEK CO.,LTD. · Model ARK-1s · UDI-DI 04987669100738

510(k) clearances

Adverse events

Recalls

Facilities

Description

The NIDEK AUTO REF/KERATOMETER ARK-1s measures spherical, cylindrical refractive errors, and cylinder axis from the refractive status of the patient’s eye. In addition, subjective test is performed with the built-in charts and lenses for subjective measurement. The keratometer measures the corneal curvature radius (corneal refractive power), principal meridian directions, and corneal cylindrical power.

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Data compiled from public U.S. FDA sources (GUDID, 510(k)/PMA, MAUDE, recalls, establishment registration). Adverse-event reports are unverified and do not establish causation. Informational only — not medical, clinical, or regulatory advice.