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OM-4, ophtalmometer

OM-4, ophtalmometer
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CONNECTING VISIONS

A professional for precise objective measurements of the corneal radius of curvature plus accurate measurements of the radius of curvature of contact lenses compactly-designed and very easy to use by one hand operation. 1 rotractor scale P Indicates the axis of astigmatism. 2 djustable eyepiece A Adjustable from -5 to +5 diopters to correct for operators spherical error. 3 ertical knob V Is revolved to coincide the + and -|- marks of the mire images for finding the radius of curvature of the vertical axis. 4 orizontal knob H Is revolved to coincide the | and ¦ marks of the mire images for...

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Internal scale readings with extended range The OM-4 features easy to align mire images with: All readings are thus placed in one field of view, greatly simplifying and speeding up measurements. (Example: the diagrams on the right show mire images in perfect focus and without astigmatism, with radius of curvature 8.0 mm and vertex power 42.2 diopter on both vertical (V) and horizontal (H) axes). Extended range of curvature readings possible from 5.5 mm to 12.0 mm. Readings when astigmatism is not present Vertical and horizontal knobs are rotated to eliminate displacements in the + and -|-...

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Specifications Type Scales Corneal radius of curvature Sutcliff type 5.5 to 12 mm 0.01 mm 28.00 to 60.00 dptr. 0.125 dptr. 0 to 180º 1º 0 to ± 5dptr. Minimum reading Corneal refractive power Minimum reading Axis of corneal astigmatism Minimum Reading Diopter adjusting scale Power Primary AC 100V, 120 V, 220 V and 240 V, with built-in transformer 50/60 Hz 30 W 560 mm wide x 580 mm high x 460 mm deep 16 kgs. Power consumption Dimensions Weight Optional Accessory Adjustable Instrument Table AIT-16 Subject to change in design and/or specifications without advanced notice. In order to obtain the...

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