Marco ARK-1a

The Marco ARK-1a is a multimodality device that
includes autorefraction and keratometry.
This automated instrument measures with objective accuracy
and features accommodation testing and retro-illumination.
The accommodation helps to detect early presbyopia,
latent hyperopia and children with reading difficulty.
The retro-illumination benefits patient’s in viewing and
understanding their cataracts.
Super luminescent diode (SLD) makes it possible to
accurately measure patients with cataracts, corneal opacities,
IOLs, and post LASIK procedures.
It also utilizes a multiple pupil zone imaging method combined
with rotary prism technology, and auto alignment
EyeTracking System on the X-Y-Z axes ensuring consistent,
accurate, reliable and repeatable data

FEATURES
Super Luminescent Diode (SLD) for
sharper images compared to LED
Accurate data even through many cataracts
Eye Tracking system provides X-Y-Z tracking for
superior alignment and focus
Large pupil zone imaging method (up to 6mm diameter)
Accommodation measurement
Keratometry measurement with mire ring to
reduce eyelid artifacts
Retro illumination illustrates media opacity in
both the cornea and lens
6.5″ high-quality, full-color LCD screen
High speed printer
Super Luminescent Diode (SLD)
Super Luminescent Diode is an edge-emitting semiconductor light source based on super luminescence. It uses the
high power and brightness of laser diodes providing a
sharper image compared to LED. It allows for quick and
accurate measurements of patients with cataracts,
corneal opacities, IOL’s, and post LASIK.

Confidence Index Indicator
The confidence index indicator helps to clarify the reliability of
the data obtained by the ARK-1a. The confidence index number
can range from 3 to 9 and gives the operator an indication of
the clarity and quality of the ocular media.
A value near 9 means the data is very repeatable and
consistent. Values of 6 or below indicate media opacity or
highly irregular optics.

The Eye Tracking System
The Eye Tracking System provides X, Y, Z axes tracking for
superior alignment and focusing.
The ARK-1a automatically initiates measurement at
the optimal alignment.

Accomodation
Accommodation testing helps to detect early presbyopia,
latent hyperopia, and children with reading difficulty.

Dual Zone
Exclusive dual zone refractive measurement utilizing double-ring
technology to measure two pupil zones supplies information based on pupil size and provides more robust objective data as
a starting point for subjective refractions.

Retro Illumination
The ARK-1a Autrefractor & Keratometer features retro
illumination which illustrates media opacity in
both the cornea and lens.