Astigmometer

An astigmometer is a device that is used to measure the degree of astigmatism in the eye. Astigmatism is a condition in which the eye has different optical powers in different directions. This may cause image distortion and blurred vision.

There are different types of astigmometers, but they all work on the same principle. They use a special light that passes through the eye and hits a photosensitive element. Then the shape of the light spot on the screen or computer monitor is analyzed.

The degree of astigmatism is measured in diopters (D). The normal value for a healthy eye is 0-0.5 D. If the value is higher, it can lead to vision problems such as nearsightedness or farsightedness.

Your doctor may use astigmometry to diagnose astigmatism. This is a painless and quick method that allows you to determine the degree of astigmatism and choose the optimal treatment.

It is important to note that astigmatism can be corrected with glasses or contact lenses. However, if the astigmatism is too high, surgical correction may be required.

Overall, astigmometry is an important tool for diagnosing and treating ocular astigmatism. It allows you to determine the degree of visual impairment and choose the optimal treatment method.

Astigmatic - a condition in which the symmetry of the photometric definition of an object is violated in more than one main axis. In its most general form, astigmatism is understood as a condition when a two-dimensional scattering diagram of points with certain properties does not coincide with a straight line segment.

Manifestations of astigmatism appear during construction

Astigmatism is a vision defect in which the light rays entering the eye do not travel parallel to the axis of the eye and produce an unfocused image. One way to measure astigmatism and determine the degree of its severity is astigmometry.

The word “astigmometric” was formed from the merger of two words of Greek origin: “astigmati” - distortion (or defect) of the lens and Greek - length (observed over centuries). That is, an astigmatist is a person who has or suffered from astigmatism, although most often we are talking about the measurement of astigmatitis. In general, astigmatitis is either a person with poor vision or a device for measuring the astymatic properties of the eyeball.

There are several types of astigmometers: skiascopic, autorefractive and focal