Der Sehtest

The eye test

In an eye test, the visual performance of the eyes is checked. Inadequate visibility makes everyday life more difficult, whether at work or on the road.
Therefore, you should have an eye test carried out regularly to make sure that everything is still in good order.

Why should I take an eye test?

The visual performance or visual acuity is called the resolving power of the eye without optical aids that are used for correction. Since the visual acuity usually changes slowly and insidiously, poor vision is not recognized immediately. Ametropia can often go unnoticed. It is therefore important to visit the ophthalmologist or optician regularly, even if there is no suspicion. However, if you notice that your vision is blurred or other symptoms such as headaches, dry eyes and aching eyes become noticeable, you should have an eye test as soon as possible.

What is done during an eye test?

An eye test is divided into an objective and a subjective refraction. The objective measurement is carried out fully automatically with a so-called autorefractometer, i.e. without the participation of the patient. The values ​​measured here provide a point of reference for the subsequent subjective refraction. The ophthalmologist or optician can also get an idea of ​​what glasses values ​​will be necessary.

The subjective measurement includes the patient. This means that the ophthalmologist or optician now relies on the information provided by the patient and uses his or her help to determine the correct glasses values.
The eye test is usually carried out using eye test charts with different symbols.
One of the most well-known symbols is the so-called Landolt ring. (Image Landolt-Ring) Among other things, eye charts with numbers, letters or images are used.
For each test panel, the patient indicates how well he can perceive or recognize something. Small trial lenses with different prescriptions are required for the test, which are then placed in front of the patient's eye during the measurement using trial glasses. Step by step, the correct strength with which the patient can see best is determined.

How often should I take an eye test?

In general, it is advisable to have two to three examinations between the ages of 20 and 39 and then to have an eye check-up every two to three years from the age of 40. From the age of 65 it is recommended to have an eye test every one to two years. However, these are only the normal values ​​if there are no symptoms or a previous ametropia is known. General health must also be considered. A disease such as B. Diabetes (diabetes), medication, as well as hereditary eye diseases can lead to the fact that the ophthalmologist recommends having the eyes checked more often.

In general, it is advisable to check your eyes regularly.
With us, it's quick and easy!

In our branches around Lake Zurich in Miles, Horgen and Rapperswil, your visual performance will be checked and detailed advice will be given especially for you.

We look forward to you!
Your Nicole Diem glasses fashion team

Leave a comment

Please note, comments need to be approved before they are published.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.