What’s with the blank stare?

Patients with double vision and dull gaze are mostly caused by excessive fatigue and depression, and may also be related to strabismus and refractive error.
If the patient stays up late for a long time, is overworked or depressed, double vision and dullness of gaze may occur, which generally does not require special treatment and can be relieved after the patient has supplemented his sleep.
Patients with strabismus may also experience double vision and dull gaze, mainly due to the skewed eye position of strabismus patients, and patients may also experience vision loss, double vision and other uncomfortable symptoms.
Patients with refractive error may also experience double vision and dullness of gaze, mainly due to uncorrected refractive error and blurred vision. The discomfort can be improved by correcting the refractive error with eyeglasses or refractive surgery to improve visual acuity.
It is recommended that patients with double vision and other discomforts should seek medical attention to evaluate their condition and follow the doctor’s instructions to choose the appropriate treatment.