This is serious and can lead to permanent vision loss if not treated.įloaters and flashes can also happen for no obvious reason. Sometimes they can be caused by retinal detachment. They're usually caused by a harmless process called posterior vitreous detachment (PVD), where the gel inside your eyes changes.

Lots of people, particularly older people, get floaters and flashes. You'll usually only need treatment if you have a problem that could affect your vision. The brain creates a visual illusion of fractured or bright. If you have problems with floaters or flashes in your vision your eyes will be checked at an opticians to see if you need to be seen by an eye doctor (ophthalmologist) for more tests or treatment. What is kaleidoscope vision Overview Causes When to see a doctor Treatment Summary Kaleidoscope vision is a symptom of migraine. You can call 111 or get help from 111 online. These could be signs of a serious problem with the back of your eye, which could permanently affect your vision if it's not treated quickly. For some people, these shapes resemble the walls of a medieval fortress. floaters start after eye surgery or an eye injury Zigzag lines or other shapes may also appear.Unlike other forms of migraine, they may. Ocular Migraine is a term that has been used to refer to a number of migraine subtypes that are characterized by a variety of visual disturbances including visual loss, blind spots, zig-zag lines, or seeing stars.

you have a dark 'curtain' or shadow moving across your vision Visual impairments associated with migraine can happen with or without a headache.

the number of floaters or flashes suddenly increases.

you suddenly get floaters or flashes in your vision.

The blind spot usually enlarges and may move across your field of vision.

you have floaters or flashes in your vision for the first time Typically you will see a small, enlarging blind spot (scotoma) in your central vision with bright, flickering lights (scintillations) or a shimmering zig-zag line (metamorphopsia) inside the blind spot.

Seeing zigzag lines