Autorefractometry. Prices, reviews, ratings
General information
The basis of this procedure is that the refractometer emits a beam of infrared light. The image of the beam is recorded twice by sensors (when the light enters and leaves the eye). All the information received is analyzed by computer programs. This method is carried out automatically, and the patient only needs to focus his gaze on the fixation mark.
Methods and technologies
The device for conducting this type of examination is called an autorefractometer. It has a certain image as a fixation mark, with the help of which the patient's attention is focused.
New generation autorefractometers operate on the principle of wave analysis. Sometimes several devices are combined in one device, which makes the doctor's work easier (for example, with additional keratometry or keratotopography).
Procedure
Preparation
The patient should consult an ophthalmologist. No special preparation is required for this procedure.
Autorefractometry process
To correctly identify refraction, accommodation relaxation is required. For this purpose, the fixation mark should be installed at the maximum possible distance. This procedure is very convenient, since specialists receive accurate information about the magnitude of astigmatism and the difference in refraction in the eyes.
The results of this procedure are interpreted only by professionals. In addition, with their help, you can conveniently calculate some studies, for example, check visual acuity. It is quite convenient for a specialist who selects glasses or contact lenses for patients to perform autorefractometry. Most likely, the ophthalmologist will prescribe some additional tests.
Indications
As a rule, autorefractometry is performed to:
- assess visual acuity;
- prepare for laser vision correction or some other eye surgery;
- assess the results of treatment or correction.
Autorefractometry allows you to detect the following diseases:
- myopia (nearsightedness), which is a refractive error;
- farsightedness - a condition that is the opposite of myopia;
With the help of this procedure, you can also assess other indicators:
- anisometropia - a refractive error eye;
- the presence of astigmatism and its level - a violation of the course of the axes in the eyeball, due to which the image is poorly projected on the retina.
Since autorefractometry is an automated method for diagnosing refraction, it is successfully used in pre- and postoperative studies (surgical treatment in ophthalmology).
Contraindications
Autorefractometry is not performed if the patient has a cloudy lens, cornea or vitreous body. In this case, the test beams of light do not pass to the retina and back.
Prices and clinics
A list of clinics where autorefractometry is performed can be found on the website . On the medical portal, in addition to general information about clinics and doctors, you will also find information about the location, work schedule, and the cost of the autorefractometry service. It is best to check the cost of the service with a specialist.
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