1. Aili Gang
  2. Ophthalmic information
  3. How to use the vision chart of Guangzhou Eye Hospital to detect vision problems?

How to use the vision chart of Guangzhou Eye Hospital to detect vision problems?

How to use the vision chart of Guangzhou Eye Hospital to detect vision problems?

How to use the visual acuity chart of Guangzhou Eye Hospital to detect vision problems

In our daily life, we often encounter some vision problems, such as myopia, hyperopia, etc. Guangzhou Eye Hospital, as a professional eye hospital, provides a common method to detect vision problems, that is, to use a visual acuity chart. This article will elaborate on how to use the visual acuity chart of Guangzhou Eye Hospital to test vision from the following four aspects.

1. Functions and usage scenarios of the visual acuity chart

Vision chart is a tool used to detect vision problems. It is often used in ophthalmic clinics, optical shops, schools and other places. The visual acuity chart used by Guangzhou Eye Hospital has adopted international standards, and its accuracy and reliability have been guaranteed through strict quality control. In the outpatient service, the doctor will guide the patient to sit at an appropriate distance, and then test with an eye chart. When using the visual acuity chart for testing, doctors usually ask patients to look at the letters or symbols on the visual acuity chart and ask them to gradually report the letters or symbols they see. The letters or symbols on the vision chart gradually become smaller, starting with large letters, so that doctors can accurately assess the patient's vision level.

2. Steps and precautions of visual acuity chart test

During the visual acuity chart test, there are some specific steps and precautions that patients and doctors should follow together. First, the patient needs to keep sitting upright and keep the distance between the visual acuity chart and himself constant. The doctor will select an appropriate visual acuity chart for testing according to the patient's age and symptoms. Secondly, the doctor will gradually reduce the size of the letters on the vision chart to adjust the difficulty of the test, and evaluate the vision level according to the patient's response. During the test, patients should focus on the letters on the visual acuity chart and try to say the letters they see. In order to accurately assess vision problems, doctors may ask patients to carry out more tests, such as adjusting the degree of lenses to detect whether there are problems such as myopia or hyperopia. In addition, before the test, the patient should also tell the doctor whether they wear contact lenses or glasses with vision correction lenses.

3. Results and significance of visual acuity chart test

The results of the visual acuity chart test are generally expressed in 20/20 fractions. If the patient's vision is 20/20, it means that his vision is within the normal range. If the patient's vision is lower than 20/20, for example, 20/40, it means that the patient can see the objects that ordinary people need to see at a distance of 40 feet from 20 feet. The result of the visual acuity chart test is an important basis for doctors to diagnose vision problems. According to the test results, doctors can judge whether the patient has abnormal vision, and further develop treatment plans, such as glasses or surgical correction.

4. Advantages of visual acuity chart test in Guangzhou Eye Hospital

As a professional ophthalmic hospital, Guangzhou Eye Hospital has the following advantages in providing visual acuity chart tests: First of all, Guangzhou Eye Hospital uses an international standard visual acuity chart to ensure the accuracy and comparability of test results. Secondly, doctors in the hospital have received professional training and can test according to the specific conditions of patients, and give accurate diagnosis and suggestions. Finally, the equipment and environment of Guangzhou Eye Hospital meet the national health standards, providing a safe and comfortable testing environment for patients. To sum up, Guangzhou Eye Hospital uses visual acuity chart to detect vision problems is a common and effective method. Through the visual acuity chart test, doctors can accurately assess the vision level of patients and provide appropriate treatment plans for patients. At the same time, patients should also follow the doctor's guidance and precautions when performing the visual acuity chart test to obtain accurate test results.
Site reminders and announcements
This website provides information storage space services for registered users. The articles/texts uploaded by non "Ailibang" editors are all self published and uploaded by registered users, which does not represent our opinion. The copyright belongs to the original author. If there is infringement, false information, wrong information or any problem, please contact us in time, and we will delete or correct it at the first time.