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Zimed Lensometer features a built-in illuminated magnifier and a finely calibrated scale for accurate measurement of spherical and cylindrical lens powers. They include a high-resolution digital display for easy reading. They have various measurement modes for different types of lenses, such as single vision, bifocal, and progressive. Their range is -25.00D to +25.00D for spherical lenses and -10.00D to +10.00D for cylindrical lenses. Our Lensometer’s robust optical system delivers precise readings.
Sphere Measurement: -25.00D to +25.00D (Step: 0.01D, 0.06D, 0.12D, 0.25D)
Cylinder Measurement: -10.00D to +10.00D (-, +, ±)
Axis Range: 0° to 180° (1° Steps)
ADD Measurement: 0.00 to 10.00D
Astigmatism Axis Range: 0° to 180°
Prism Basal Angle: 0° to 360°
Lens Size Compatibility: Ø7 to Ø130mm
Spherical Power Range: -25D to +25D
PD Range: 30 to 100mm
PH Range: >2°
Lens Diameter: Ø7 to Ø30mm
Spherical Power Range: 0 to ±25.00D
Measurement Type: Single vision, progressive, bifocal lenses
Lens Power Range: Sphere: -25D to +25D,
Cylinder: 0D to ±10D
Axis Measurement: 0° to 180°
ADD Measurement: 0D to 10D (for progressive/bifocal lenses)
Vertex Power Range: +15D to -15D
Vertex Power Step: 0.12D
Prismatic Power Range: 5 prism diopter
Prismatic Power Step: 1 diopter
Frequently Asked Question
A lensometer can measure single vision, bifocal, progressive, and prism lenses. Most modern models can handle both glass and plastic lenses.
Manual lensometers require manual alignment and reading of the scale to determine lens power. Digital lensometers offer automated measurements and often include touchscreen interfaces, memory storage, and print/export options.
Calibration procedures vary by model, but generally involve using a lens with a known prescription (calibration lens) and adjusting the device until readings are accurate. Refer to your device’s manual for specific steps.
No, standard lensometers are not designed to measure contact lenses. Contact lens parameters require a separate device called a lens analyzer or radiuscope.
Use a soft cloth to clean lenses and surfaces. Avoid using harsh chemicals. Regularly check for dust in the lens path and ensure the instrument is covered when not in use to prevent buildup.
The sphere indicates the degree of nearsightedness or farsightedness. Cylinder measures astigmatism correction. Axis specifies the orientation of astigmat
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