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The main symptom is loss of vision, with colors appearing subtly washed out in the affected eye. A pale disc is characteristic of long-standing optic neuropathy. In many cases, only one eye is affected and a person may not be aware of the loss of color vision until the examiner asks them to cover the healthy eye.
Object memory involves processing features of an object or material such as texture, color, size, and orientation. It is processed mainly in the ventral regions of the brain . A few studies have shown that on average most people can recall up to four items each with a set of four different visual qualities.
Toxic optic neuropathy refers to the ingestion of a toxin or an adverse drug reaction that results in vision loss from optic nerve damage. Patients may report either a sudden loss of vision in both eyes, in the setting of an acute intoxication, or an insidious asymmetric loss of vision from an adverse drug reaction. The most important aspect of ...
Additionally, disorders that affect vision and visual imagery such as aphantasia have been linked to autobiographical amnesia, depicting the importance of visual imagery to autobiographical recall. [13] [14] This relationship of imagery vividness and improved autobiographical memory recall is evidenced across both clinical and non-clinical ...
Motoric cognitive risk syndrome is a series of symptoms that suggest someone may be developing dementia. It’s characterized by slow walking and cognitive complaints, like trouble with memory and ...
There are many diseases known to cause ocular or visual changes. Diabetes , for example, is the leading cause of new cases of blindness in those aged 20–74, with ocular manifestations such as diabetic retinopathy and macular edema affecting up to 80% of those who have had the disease for 15 years or more.
The color green can help lower anxiety levels, and is known to have a positive effect upon heart health. Spending time in the green outdoors is the perfect way to increase the influence this color ...
Illusory palinopsia is often worse with high stimulus intensity and contrast ratio in a dark adapted state.Multiple types of illusory palinopsia often co-exist in a patient and occur with other diffuse, persistent illusory symptoms such as halos around objects, dysmetropsia (micropsia, macropsia, pelopsia, or teleopsia), Alice in Wonderland Syndrome, visual snow, and oscillopsia.