Visionix VX36 - How Do I Measure Contact Lenses

Vx36 User manuel Page | 36
• First measure the far vision area: align the lens, by moving the lens target to the center of the
alignment circle and press the measurement button located at the front of the VX36 (to hold and store
the measured data).
• Then measure the near vision area: align the lens by moving the lens target along the corridor to the
center of the alignment circle and press the measurement button located at the front of the Vx36 (to
hold and store the measured data).
• Both measurements may be done automatically.
• Print the results, refer to the How do I print out results? Section.
6.7 How do I measure contact lenses?
• Select the Lens mode by pressing the Lens mode button at the bot left of the main screen.
• Place the lens to the support, refer to the HOW do I place contact lenses? Section.
• Proceed to the alignment.
• Press the Measurement button located on the front of the vx36
Note: the automatic mode is disabled when measuring contact lenses
Note: among the measured data, a SE value is displayed. It corresponds to half of the cylinder value added to
the sphere value. When a non-cylindrical contact lens is measured and still a cylinder value is detected, the SE
value will be more reliable than the SPH value to know the total sphere value. It enables to reduce the margin
of error in the measured data made by the unintended cylinder value.
• Measure another lens if necessary.
• Print the results
Note: make sure to perform he measurement as quickly as possible before the surface of the lens becomes dry.
Indeed, because the lens contains water and is composed of soft material, it cannot stay spherical for too long
and this would alter the measured data.