Photopsia should be investigated immediately. This condition is extremely rare (one in 5 million people will be affected, typically fair-skinned, blue-eyed northern Europeans) but if left untreated, will migrate to the liver and shorten life expectancy. However, it can also be a sign of ocular melanoma. Photopsia can present as retinal detachment when examined by an optometrist or ophthalmologist. This condition has also been identified as a common initial symptom of Punctate Inner Choroiditis (PIC), a rare retinal autoimmune disease believed to be caused by the immune system mistakenly attacking and destroying the retina. These impulses are interpreted by brain as 'flashes'. Vitreous shrinkage or liquifaction, which are the most common causes of photopsia, cause a pull in vitreoretinal attachments, irritating the retina and causing it to discharge electrical impulses. It is most commonly associated with posterior vitreous detachment, migraine with aura, migraine aura without headache, retinal break or detachment, occipital lobe infarction and sensory deprivation (ophthalmopathic hallucinations). Photopsia (Flashes) is the presence of perceived flashes of light. Entopic phenomenon: This can happen to anyone at any time. More information located at the link below: This causes the vitreous to pull away from retina creating occasional bright bursts of light.

Since these objects exist within the eye itself, they are not optical illusions but are entoptic phenomena. This type of injury can scatter nerve signals in your brain and affect your vision temporarily. One is the result of a blow to your head. They may appear as spots, threads, or fragments of cobwebs, which float slowly before the observer's eyes. There are several causes of seeing stars in your vision. Floaters are visible because of the shadows they cast on the retina or their refraction of the light that passes through them, and can appear alone or together with several others in one's field of vision. The perception of floaters is known as myodesopsia, or less commonly as myiodeopsia, myiodesopsia, or myodeopsia. They are also called Muscae volitantes (from the Latin, meaning 'flying flies'), or mouches volantes (from the French). The common type of floater, which is present in most people's eyes, is due to degenerative changes of the vitreous humour. Once the testing is completed, our Behavioral and Developmental Optometrist will review the results and go over the recommended program.Floaters are deposits of various size, shape, consistency, refractive index, and motility within the eye's vitreous humour, which is normally transparent. At a young age the vitreous is perfectly transparent but during life, imperfections gradually develop. The first is to schedule a Neuro-Developmental vision evaluation to determine to what degree the vision problems. With paradigm in addition to the chromatic filter, the effect can help in reducing the perceived intensity of palinopsia, as well as improving visual comfort. It would help to reduce the intensity of perceived visual snow disturbance, photosensitivity, and palinopsia.

Use of precisely customized tints (chromatic filter effect) with respect to hue and saturation that suit the individual the best. It usually happens after a concussion/mild traumatic brain injury, the onset of other brain related abnormalities. VSS patients also reported to manifest several secondary visual and non-visual symptoms, such asĪlthough the causes of VSS currently remain unknown, but the key features of VSS point to a neurological disorder of visual processing inside the brain cortex.

Palinopsia : persistent recurrence of an image even after the stimulus has been removed.

Entoptic Phenomena : visual effect originated inside the eye.

Normally, a person detected with VSS often experience at least 2 of these phenomena, other than the visual snow effect:

You’ve probably experienced it numerous times without realizing. VSS is characterized by an unusual visual disturbance, pixelated ‘visual snow’ or described as tiny flickering dots continuously appearing in a single plane or even the entire visual field. What Causes Blue Field Entoptic Phenomenon On:JAsked by: Tina Weimann Total: 0Average: 0 It’s not dangerous at alland is in fact very common, but most people don’t even notice it if they’re not paying attention to it. However, these patients see only a few dots at a time and will not see them over their point of focus, since it is caused by white blood cells infiltrating the capillaries. Visual Snow Syndrome (VSS) is an uncommon neurological condition. Entoptic blue field phenomenon patients will describe their visual disturbance as black dots with a white tail, seen best against a clear blue sky or another blue background.

Causes entoptic phenomena