Vision flashes, technically diagnosed as photopsia, involves a type of vision disturbance that causes the sensory parts of the eye to pick up light incorrectly. These are interpreted by the optic nerve and then the brain as flashes or sparks in the peripheral vision area. The condition can occur in one or both eyes and can often be irritating. The causes are also multiple and not limited to just one factor. At M-Eye Vision in Katy, TX, our eye doctor has years of experience identifying and addressing the root cause of vision flashes.


The Back of the Eye is the Source of Vision

The most susceptible part of the eye that can be involved tends to be the retina, which is inside the eye structure and provides the sensitivity to light, color and changes that we interpret as vision. This is the part that connected with the optic nerve and allows the brain to "see" images as the eyes work and focus on what they are looking at. The retina is covered by the vitreous humor, which is a clear jellylike material that protects the retina. If the retina is pressured or is impacted by force, it can send of signals that the brain interprets as sparks or flashes. Similarly, fibers from the retina extend into the vitreous humor and these too with friction can create spark sensations when they rub together.

Causation and Diagnosis

As mentioned earlier, there is no single cause or standout reason why people see flashes in their vision. Sometimes it happens with the onset of migraines. Other cases of visual flashes are linked to traumatic events like car accidents and sports injuries. Momentary flashes and sparks can also occur due to pressure applied to the eye. And internal issues from age or health can interfere, causing the optic nerve to become inflamed and malfunction. In worst case scenarios, the retina can disconnect entirely from the back of the eye, causing flashes before vision loss occurs.

The best way to know what is behind your flashes and what to do about it is to schedule an eye exam with our optometrist. A professional diagnosis from an eye doctor will determine what is happening inside the eye and retina and what can be done to address it.

Local Help for Eye Exams and Vision Flashes

If you are experiencing flashes in your vision in Katy, TX, the optometry professionals at M-Eye Vision are ready to assist you. For more information or to schedule an eye exam, call us today at (281) 394-7886.

Contact Us

We look forward to hearing from you.


Find Us On The Map

Hours of Operation

Our Regular Schedule

Office Hours


9:00 am-6:00 pm


9:30 am-6:30 pm




9:00 am-6:00 pm


9:00 am-6:00 pm