Range of measurement:
<table class="tableizer-table">
<thead><tr class="tableizer-firstrow"><th>Lens</th><th>Range</th></tr></thead><tbody>
<tr><td>Sphere</td><td>-25 ~ +25 D unit( 0.01/0.12/0.25 D steps)</td></tr>
<tr><td>Cylinder</td><td>-9.99 ~ +9.99 D unit (0.01/0.12/0.25 D steps)</td></tr>
<tr><td>Axis</td><td>0° ~ 180° unit (1° steps)</td></tr>
<tr><td>Add</td><td>0 ~ +9.99 D unit (0.01/0.12/0.25 D)</td></tr>
<tr><td>Prism</td><td>0 ~ 6 △ unit ( 0.01/0.12/0.25 △)</td></tr>
</tbody></table>
