How to measure vision in Guangzhou Eye Hospital
Vision is one of the important indicators of eye health. As a professional eye hospital, Guangzhou Eye Hospital has rich experience and advanced equipment in vision measurement. The following introduces the specific methods and processes of vision measurement in Guangzhou Eye Hospital from different aspects.
1. Common methods of vision test
Guangzhou Eye Hospital uses a variety of methods to measure the vision of patients. The common methods include naked eye vision test, corrective vision test and color discrimination test.
The first is the naked eye vision examination. The patient needs to be a certain distance away from the visual acuity chart to identify the landmark patterns or letters on the visual acuity chart. The doctor will evaluate the patient's vision according to the minimum distance from the patient to see the patterns or letters clearly.
The second is corrective vision inspection. The patient wears the best corrective glasses or contact lenses and carries out the same vision test to determine whether the vision can be effectively corrected.
The color discrimination test allows patients to identify patterns or numbers of different colors through a special color perception test board to evaluate whether their color perception function is normal.
2. Steps of vision test
The vision test of Guangzhou Eye Hospital is usually carried out according to the following steps:
First of all, the patient needs to register at the hospital's eye clinic, and inform the doctor of his own chief complaint and the purpose of the vision test.
After that, the doctor will conduct a detailed eye examination, including external eye examination, intraocular pressure examination and slit lamp examination. These tests can help determine whether there are other eye diseases or factors affecting vision.
Then, the doctor will choose a suitable vision test method according to the specific situation of the patient. Generally speaking, naked eye vision examination is the most commonly used basic test method.
Finally, the doctor will evaluate the test results and explain the test results to the patients. If abnormal vision or other eye problems are found, the doctor will formulate corresponding treatment plans.
3. Application of equipment and technology
Guangzhou Eye Hospital has used advanced equipment and technology in vision test to ensure the accuracy and reliability of test results.
Ophthalmologists will use the latest visual acuity charts, such as Snellen visual acuity chart or ETDRS visual acuity chart, which have different letter sizes and distances to adapt to patients of different ages and eye conditions.
In addition, doctors can also use an automatic refractometer to measure the patient's diopter and corrected vision to determine the best correction method and degree.
With the help of the computerized vision test system, doctors can more accurately measure the vision of patients and record the test results to facilitate follow-up review and treatment.
4. Precautions and suggestions
Before the vision test, patients need to pay attention to the following:
First, keep adequate rest and good visual environment to avoid visual fatigue and eye discomfort.
Secondly, patients should truthfully tell doctors their symptoms and eye conditions, so that doctors can better understand the patient's condition.
Finally, the patient should cooperate with the doctor's guidance during the test to keep the eyes stable and accurate fixation, so as to ensure the accuracy of the test results.
summary
Guangzhou Eye Hospital measures vision through a variety of methods and advanced equipment, including naked eye vision test, corrective vision test and color discrimination test. Vision test is usually divided into registration, eye examination, selection of appropriate test methods and result evaluation. With the help of advanced equipment and technology, doctors can measure patients' vision more accurately and give corresponding treatment suggestions. Before the vision test, the patient needs to maintain adequate rest and a good visual environment, and cooperate with the doctor's guidance. Through the vision test of Guangzhou Eye Hospital, you can know your vision status in time, find and treat eye problems early, and maintain eye health.
