Tomey TMS-5, Instruction Manual

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Precautions during operation
Do not place any container with liquid in it on the instrument. Any liquid
entering the instrument may cause electric shock or failure.
Be sure to touch the “New Patient” button to delete the measurement data
for the previous patient before measuring a new patient. If new measurement
is started without deleting the previous data, the measurement data of the
previous patient may be included.
When changing the capture mode of the instrument, pay attention to prevent
any moving parts from hitting the patient’s eye or nose. Also, be sure that the
patient does not place their hands or fingers near any moving section of the
instrument. Doing so may cause injury.
Be extremely careful not to take too long to capture images or repeat
measurement too many times, as this can stress the patient.
Always check that there are no problems with the entire system and patient to
ensure safety.
If a problem with the instrument or the patient occurs, take appropriate action
such as stopping the instrument to ensure the safety of the patient.
Do not use the radius of corneal curvature and corneal thickness directly to
correct the eye refractive power. Other examination methods should also be
used in conjunction with the above.
If the radius of corneal curvature of this instrument is used directly to select
intraocular lenses, the appropriate lenses may not be selected and further
surgery might be required. Other examination methods should also be used in
conjunction with the above.
When a corneal shape map is used for diagnosis, a thorough review is
necessary, such as performing inspections multiple times and performing
other inspections. Note that analysis errors may occur due to light blockage
by eyelashes and eyelids, misalignment of the center due to unstable sight,
conditions of and/or secretions due to corneal disorder, etc.
Note that if diopter is used as the unit for the radius of corneal curvature, the
value may differ depending on the cornea equivalent refractive index. This
instrument uses the value n = 1.3375. If an incorrect value is used to select
intraocular lenses, further surgery might be required.
When capturing images in ring topo mode, check the display on the Mires
plot screen to confirm that the cone with the correct number of rings is used.
If a cone with the incorrect number of rings is used for capturing/analyzing an
image, the corneal shape or curvature cannot be obtained correctly.