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Overview of Lensometer & its Functioning

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Wang Ming
Overview of Lensometer & its Functioning

Lensometer is an ophthalmic device and the procedures used to operate a lensometer are known as lensometry. The device is also called a vertometer or focimeter. Lensometer is used by opticians and optometrists to verify the configuration of the eye lenses and spectacles. The device shows the exact configuration and hence many people rely on the lensometer and Marco manual lensometer.

Lensometer & its Uses

The lensometer works effectively to mark the lenses which are uncut to verify the power of bifocal, trifocal, and single vision. Besides, you can check if the eye lenses are mounted properly in the spectacles.

Marco manual lensometer detects eye problems caused in the retina. Whereas, a lensometer is used by optometrists to assess specific parameters mentioned on the prescription of a patient. The parameters include a prism, sphere, cylinder, and axis.

There are many sites through which you can purchase the Marco manual lensometer. This device is meant to measure contact lenses like hard lenses, soft lenses, and conventional spectacles like any other lensometer.

The device is used to assess the precision of the progressive lenses. Also, it helps to determine the point, the center of the lens, and other measurements that are useful for the functioning of the lens.

There are instances when the lensometer is required to assess the eyes of a patient to match the earlier prescription. Slit lamp imaging module is used to detect eye problems and check the eye power.

How to Check the Power Calibration of Your Lensometer?

Follow these simple steps periodically to check the power calibration of your device.

The first and foremost step is to turn on the lensometer.

Secondly, look for the eyepiece ring and turn it on to ensure the reticule comes in focus.

Thereafter, turn on the power wheel to the plus and gradually reduce the power. Avoid oscillating the wheels in back and forth motion to get a clear focus. The power wheel must read zero and that’s an indication that you have calibrated the device effectively.

For some reason, if you see that the power wheel is not reading zero, try to focus again on the eyepiece and double-check the calibration. Even after this attempt, you don’t see zero, then the lensometer should be sent for maintenance.

How to Take Care of the Lensometer?

If you notice that there is dust falling onto the lens surface of the device, blow it off using a clean dust brush or a bulb syringe.

Clean the exterior part of the lensometer with a clean and soft cloth to avoid the accumulation of dust.

Avoid using any lubricants on the device as it may get damaged. Instead, seek help from professionals.

 

The author Wang talks about the functioning of Marco manual lensometer and how it checks the prescription of the contact lenses or spectacles with precision. He also speaks of the slit lamp imaging module and how it works to check the condition of the eyes. He has also mentioned simple tips to take care of your lensometer.

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