Refractometry in Moscow: Autorefractometry for Accurate Vision Diagnosis
Refractometry is one of the basic methods of modern ophthalmological diagnostics. This test helps understand how the eye's optical system works, identify refractive errors, and determine whether the patient needs vision correction. At our clinic, refractometry in Moscow is a standard part of the initial examination. We use digital diagnostics, analyze the results along with the patient's complaints, and only then recommend next steps.
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What is refractometry and what does it show?
During the examination, the doctor evaluates the eye's refraction and how accurately light is focused on the retina. A modern autorefractometer, which measures eye parameters automatically, is used for this purpose.
The procedure helps identify myopia, hyperopia, and astigmatism, as well as determine preliminary parameters for correction. It is important to understand that the device results are part of the examination and not a definitive diagnosis. The ophthalmologist always makes a final assessment after the examination.
What parameters does the examination evaluate?
During the procedure, we evaluate:
- Presence of nearsightedness or farsightedness
- Signs of astigmatism
- Parameters for selecting glasses
- Need for additional examination
- Preliminary vision correction tactics
The examination also helps determine the optical power of the eye, assess the condition of the visual system, and understand the severity of the focusing disorder.
How does refractometry differ from a standard vision exam?
A standard vision exam measures how well a person sees letters or symbols on a chart. A refractive error test works differently. It helps objectively measure the parameters of light refraction within the eye.
In a standard exam, the patient's subjective impressions are of great importance. Autorefractometry allows for obtaining numerical readings even when a person has difficulty accurately describing their symptoms.
"We always start with refractometry because it helps us quickly determine whether there is a refractive error and what further treatment is needed. In our experience, this is one of the most informative stages of the initial vision diagnosis," says an ophthalmologist at our clinic.
General information
How is refractometry performed at our clinic?
The procedure is quick and painless. The examination takes just a few minutes and requires no complicated preparation.
How to prepare for the procedure?
Usually, no special preparation is necessary. If the patient wears contact lenses, the doctor may ask them to temporarily remove them before the examination.
Sometimes, dry eyes, severe accommodation strain, or inflammation can affect the accuracy of measurements. In such situations, the doctor may recommend additional examination methods.
Stages of the autorefractometer examination?
The patient sits in front of the device and fixes their gaze on a special mark inside the apparatus. A modern autorefractometer automatically measures eye parameters and evaluates the refraction of the eye.
During the examination, the device determines the degree of focusing impairment and helps identify myopia, astigmatism, and other changes. In some cases, keratometry is additionally performed if the doctor needs to assess the corneal curvature.
How long does the examination take and when are the results available?
The procedure typically takes a few minutes. Results are available immediately after the examination. The doctor then analyzes the data, assesses the patient's complaints, and performs an additional ophthalmological examination, if necessary.
Frequently asked questions about refractometry
What does refractometry reveal?
Is preparation necessary for refractometry?
Is refractometry painful?
Can glasses be prescribed immediately after refractometry?
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Who do we recommend refractometry for?
The examination is suitable for both adults and children. In some cases, an examination is especially important because vision impairments develop gradually and remain undetected for a long time.
If your vision has worsened or complaints have developed
We recommend an examination if you experience blurred vision, eye fatigue, difficulty working on a computer, or a feeling that your vision has worsened at a distance or near.
Headaches, eye strain, and decreased vision in the evening may also be reasons to seek an eye exam. These symptoms are often accompanied by myopia, hyperopia, or astigmatism.
Before fitting glasses and contact lenses
Before starting a glasses fitting or changing contact lenses, it is important to undergo an objective examination. Even a small error in the parameters can cause visual discomfort and eye strain.
If a person wears lenses for a long time, the doctor may recommend temporarily discontinuing them before the examination. This helps obtain more accurate data.
For vision prevention and monitoring
Regular vision screenings are important not only when complaints arise. We recommend screenings for patients with a hereditary predisposition to vision impairment, people with high visual strain, and school-age children.
A pediatric ophthalmologist can also perform the examination for a child. Cycloplegia is sometimes used in children, as accommodation spasm can distort the results of the examination.