The visual function examination includes a number of programs such as visual acuity examination, optometry examination, visual field examination, and adjustment function examination.
Visual acuity examination is mainly to understand the visual acuity of the patient’s eyes, that is, the ability to distinguish the details of the scene.
Optometry examination can understand the refractive status of the eyes, such as whether there is myopia, hyperopia, astigmatism and so on.
Visual field examination is to know how wide the eyes can see.
Adjustment test is to understand the ability of the patient’s eyes to change the focus position of vision, that is, whether the patient can see clearly both far and near, and how flexible they are when changing the focus position.
In addition, visual function tests also include color vision, stereoscopic vision, and contrast sensitivity. If a patient feels that his or her visual function has deteriorated, he or she should go to the ophthalmology department of a hospital in a timely manner so that the doctor can identify the cause and take targeted treatment.