There are several reasons for the appearance of flies before the eyes. As Galina Chudinskaya, a neurologist, told Gazeta.Ru, one of the most common causes can be high or low blood pressure, and this requires an appointment with a specialist to select a treatment.
Another cause may be vascular damage (retinopathy). For retinopathy, the nature of visual impairment is temporary – they usually manifest themselves as a decrease in image clarity, the appearance of large spots in the field of view, flies before the eyes, the expert explained. She added that with timely treatment, the manifestation of symptoms is reduced. And the progression of the pathology can lead to loss of vision.
According to the neurologist, flies before the eyes can also appear as a result of inflammation of the vascular membranes (choroiditis), the retina (retinitis), and both structures at once (chorioretinitis).
“In parallel, the patient will most likely notice photopsia – flashes of light. Often the clarity of vision decreases, visibility in the dark suffers. Infectious diseases in advanced cases can cause blindness, ”explained Chudinskaya.
The doctor said that vitreous and retinal detachments, except for flies, cause sparks, flashes, and are also accompanied by a decrease in visual acuity and a feeling of fog in the eyes. Galina Chudinskaya added that dark spots before the eyes, flies, short-term loss of vision can be observed against the background of vertebrobasilar insufficiency (impaired blood flow in the arteries of the spine). According to the neurologist, this situation can occur with osteochondrosis of the cervical spine.
Source: Rosbalt
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