Blurred vision, seeing people as only a silhouette without being able to distinguish facial features, and difficulty seeing lights.

Sudden vision loss and blurred vision may be related to eye fatigue and various eye diseases. For example,不良 eye habits such as prolonged use of electronic devices and staying up late can lead to eye fatigue, which may subsequently cause blurred vision. Conditions such as cataracts, glaucoma, and retinal diseases can all affect the eye's transparency or light sensitivity, resulting in vision loss.

When experiencing sudden vision decline and blurred vision, the first step should be to seek immediate medical attention. A professional ophthalmologist should conduct a comprehensive eye examination to determine the exact cause and implement appropriate treatment measures.

It is important to maintain good eye hygiene in daily life, avoid prolonged use of electronic devices, and take regular breaks to rest the eyes, thereby reducing eye fatigue. Maintain healthy lifestyle habits and a balanced diet by consuming more foods rich in vitamins A, C, and E, such as carrots, dark green vegetables, nuts, and citrus fruits, all of which contribute to maintaining eye health. If diagnosed with an eye disease, follow the doctor's recommendations for treatment, such as wearing glasses, undergoing surgery, or receiving medication, to improve vision.