There are many causes of ophthalmoplegia, mainly seen in the following: a. Long squatting, hunger, excessive fatigue, and severe mental stimulation can cause ophthalmoplegia. It is the reason that the blood supply to the brain is obstructed, causing the retinal blood vessels in the fundus of the eye but sexual ischemia. Second, when the back part of the brain is severely hit, it is also easy to produce the phenomenon of bleary eyes. Patients with periodic migraine headaches may also experience blurred vision. Physiological hypotension can also cause the phenomenon of blurred vision. V. Patients with vitreous stellate degeneration may experience blurred vision in front of the eyes. No treatment is needed. If it affects the vision, vitreous laser ablation can be done. It is a relatively mature technology that has relieved many patients with vitreous stellate degeneration.