LENSOMETER - Ophthalmic Equipment - Mercoframes Optical Corp LENSOMETER Equipment to measure the dioptric power of a lens, the lens that we. A lensometer, also known as a focimeter or vertometer, is an ophthalmic instrument used primarily by optometrists and opticians to verify the correct prescription on a pair of spectacles,

LENSOMETER

LENSOMETER Equipment to measure the dioptric power of a lens, the lens that we

A lensometer, also known as a focimeter or vertometer, is an ophthalmic instrument used primarily by optometrists and opticians to verify the correct prescription on a pair of spectacles, to correctly orient and mark uncut lenses, and to confirm correct mounting of lenses on eyeglasses. glasses frames. Lensmeters can also check the power of contact lenses, if a special lens holder is used.

The parameters evaluated by a lensometer are the values ​​specified by an ophthalmologist or optometrist in the patient's prescription: sphere, cylinder, axis, sum and, in some cases, prism. The lensometer is also used to verify the accuracy of progressive lenses and is often capable of marking the center of the lens and various other measurements critical to proper lens function. It can also be used before an eye exam to obtain the last prescription given to the patient, in order to speed up the subsequent exam.

LENSOMETRY It is the procedure by which the dioptric (Formula) and prismatic power of ophthalmic lenses and some contact lenses are determined.

 How do you do Lensometry?

 How is lensometry done?

Procedure: -The lens is placed with the support of the lens adjusting it with the center of the reticle coinciding with the optical center of the lens. The lens is placed with the lens support adjusting it with the center of the reticle coinciding with the optical center of the lens.

 What is the principle of lensometer?

The Badel principle is Knapp's law applied to lensometers. The focus of the lensometer eyepiece must be verified each time the instrument is used, to avoid erroneous readings.

 With no lens or a plano lens in place on the lensometer, look through the eyepiece of the instrument.

 Lensometer Functions

The function of a Lensometer is to determine the characteristics of a lens, including:

 The Lensometer is also used to place marks on a lens to ensure proper placement of the lens during the fabrication process.

 How do you use an auto lensometer?

put on lens, and move to the lens center, touch icon on screen, the instrument will automatically measure and get the lens UV transmittance.  Replace lens, touch icon on screen, the instrument will automatically measure and get the second lens UV transmittance.

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