| The Shin-Nippon PD-82II Digital PD Meter provides ease of use along with accuracy. The simple to use corneal reflection alignment system allows the acquisition of both monocular and binocular readings. Its modern high tech design makes for a great addition to your practice. Features: • The cornea reflection light coincidence method is used. This operated by aligning luminous points on the pupils with the measuring line • Results are displayed digitally. Three measurements are given: right, right+left, left • Results are accurate to within 0.25mm • Measurements can be made for a single eye or for both eyes • Possible to measure PD of focusing-point distances ranging from 30cm to infinity • Automatically switches OFF one minute after operation is completed, thus conserving power • Distances from tops of cornea to lenses or frames can also be measured
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