Patient may see a moving person or an object in a dreamy haze. Sleep Problems: Imagining or seeing things as soon as you wake up or just as you are falling asleep is common and not often a cause for concern.Visual hallucinations are more likely to occur if the patient takes multiple or different types of medications. Visual Hallucinations Occurring as a Result of Side Effects from Medicines: Visual hallucinations can occur as a side effect of some medicines, which is usually due to the dosage and commonly affects older adults.Majority of the times, these visual hallucinations are not threatening in nature and are often like watching a movie. Visual Hallucinations Caused by Parkinson’s Disease: Around 50% of patients suffering from Parkinson’s disease suffer from hallucinations including visual hallucinations.Around 1 in 3 patients with migraines get auras, which can start as a flickering that grows into a “C” or crescent shape with a zig-zag edge. Migraines: In migraines, visual hallucinations take place in the manner of aura.Some other mental disorders, which can cause visual hallucinations are: bipolar disorder, major depressive disorder, borderline personality disorder, schizoaffective disorder and posttraumatic stress disorder (PTSD). Mental Illness: Visual hallucinations and other types of hallucinations are common in schizophrenia.Visual hallucinations in this condition affects how the patient sees shapes and colors. Creutzfeldt-Jakob Disease (CJD): This is a rare and fatal brain condition commonly affecting older adults.In this syndrome, visual hallucinations can present as rich scenes filled with animals and people. Charles Bonnet Syndrome: This condition commonly affects older adults with severe eyesight problems, such as cataracts, macular degeneration or glaucoma.Visual hallucinations can also occur with high fever, which sometimes occurs in children. Infections & High Fevers: Certain infections, such as meningitis, can trigger visual hallucinations as one of its symptoms.A common example of visual hallucinations occurring as a result of intense stress is seeing a loved one after his/her recent death. Acute Stress: Severe stress and strong emotions have a big impact on a person’s health and can cause visual hallucinations.Patient can experience visual hallucinations when delirious. Causes of delirium include infections, certain drugs and other medical conditions. Delirium: Delirium is a condition where the patient is confused and can’t think clearly or focus.Patient commonly sees simpler images, such as flashing shapes or brightly colored spots however, visual hallucinations could be more complex also. Epilepsy: Visual hallucinations in epilepsy occur depending on the part of the brain, which generates the seizures.Other people become aware of this condition only after the patient has run or bumps into something and makes far-fetched explanations for it. Anton’s Syndrome: This rare medical condition is characterized by the patient going blind and not admitting to it.Visual hallucinations in brain tumor occur when the tumor presses the part of the brain, which deals with vision that can result in the patient experiencing lifelike scenes. Brain Tumors: Not every patient having brain tumor experiences visual hallucinations.A person upon quitting these substances after prolonged use can have same type of visual hallucinations. Alcohol & Illegal Drugs: Heavy alcohol consumption and some street drugs, such as cocaine, ecstasy and LSD can cause visual hallucinations, which can be anything from flashes of light to visualizing people.Lewy body dementia is a brain disorder where the patient has visual hallucinations where there is complete enactment of scenes before the patient’s eyes. Visual Hallucinations Caused by Alzheimer’s Disease & Dementia: Visual hallucinations can occur in the late stages of Alzheimer’s disease.
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