People with myopia of more than 250 degrees between the two eyes should not wear frame glasses

The refractive power of both eyes differed by 300 degrees. Wearing contact lenses caused inflammation and wearing frame glasses for a long time caused dizziness. The 29-year-old Ms. Qin finally had to choose myopia surgery. On November 23, when she was re-examined, her vision had recovered to 1.0.

Ms. Qin, 29 years old this year, works as a planner. She has 300-degree myopia in her right eye and 600-degree myopia in her left eye. Her eyes often get inflamed due to wearing contact lenses, so she can only wear frame glasses. However, wearing frame glasses for a long time can easily make her tired and cause dizziness.

Last week, she came to the Wuhan University Aier Eye Hospital. Zhang Qingsong, a member of the Refractive Subcommittee of the Ophthalmology Committee of the China Association of Non-Public Medical Institutions and director of the Refractive Department, found that Miss Qin's eye and physical signs met the requirements for surgery. After the surgery, she happily said that she can see clearly now and is no longer afraid of dizziness after looking at things for a long time.

"The big difference in refractive power between the two eyes is called anisometropia. Generally speaking, there is a slight difference in the refractive state of a person's two eyes, and it is rare for them to be completely consistent. The maximum tolerable limit of anisometropia between the two eyes is generally 250 degrees. If it is greater than 250 degrees, it will cause difficulty in the fusion of binocular images." Director Zhang Qingsong reminded that when adult patients with anisometropia exceeding 250 degrees wear frame glasses, due to the distance between the lenses and the eyes, the image sizes of the two eyes on the retina are not the same, which exceeds the maximum range that the brain can tolerate, making people feel tired. Such patients are not recommended to be corrected through frame glasses, and it is recommended to wear contact lenses or undergo myopia surgery to correct it. When such patients undergo myopia surgery, they need to correct the anisometropia at the cornea or intraocular position. When the image gap is relatively small, it is not easy to cause visual fatigue, abnormal stereoscopic vision, dizziness, etc.