It is recommended to measure always measure both eyes. Argos program will check for accuracy using deviation
between left and right eye measurements
Patients may have different left and right eye types
If the retina is obscured, Enhanced Retinal Visualization (ERV) mode shifts coherence
function towards the retinal region. ERV mode can provide additional confidence in axial
length measurement.
ERV only calculates Axial Length. Select ERV mode after taking a normal measurement to
acquire other parameters
A mechanical sounds is audible indicating this mode is active
Align the apex of the cornea between the target markers before taking measurement
Patients with thick cataracts may have difficulty seeing. Dim the
lights or instruct to look straight forward with the other eye.
Place a finger or sticker directly in front of the patient’s other
eye on the top edge of Argos unit. Instruct patient to fixate vision
on fingertip.
The edge is vertically aligned with the laser beam.
Check all measurements and images for correct boundary detection
Manual adjustment: If necessary, adjust the line marker to align to the correct boundary. It
will be compared to all three images to make sure standard deviation is within target
accuracy.
Make sure to select only plausible measurements after review.
Tilted eyes will cause retina to appear differently on scan and image. Significantly tilted eyes
will have pronounced ILM due to offset of scanning beam.
Conduct a visual check for tilted image on the side view. Unselect images with tilt.
Tilted images may result in incorrect length measurements.
Summary window is presented as a table with the measured parameters
AL/ACD/K can be edited with values from other devices (Ultrasound/Keratometer)
Warning notation:
Significant difference between OD and OS
Results are out of standard deviation/manually edited
IOL Power calculation
Select a Surgeon and target refraction
Select IOL model and IOL formula up to four combinations
Toric calculation (see detailed instruction in user manual)
Select Toric Planner
Input SIA and Incision Angle with target refraction
Select Barrett Toric or General Toric calculator
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