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Performing Measurements How to Adjust Gates/Threshold
How to Adjust the Posterior Lens Gate
The posterior lens gate should be located before the
start of the last lens echo.
*Note: The Posterior Lens Gate is visible only if the eye
type requires the lens thickness to be Measured and
not assumed.
To adjust the posterior lens gate:
1. Press the button beneath the Gate selections until
the "Gate Post Lens" is visible.
Tip: You can use CTRL+P to select the Posterior
Lens Gate directly from the keyboard, or hold to
select posterior lens gates for all
measurements.
2. Rotate the knob to move the posterior lens gate
before the last lens echo.
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