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Photophobia is a medical symptom of abnormal intolerance to visual perception of light. [1] As a medical symptom, photophobia is not a morbid fear or phobia, but an experience of discomfort or pain to the eyes due to light exposure or by presence of actual physical sensitivity of the eyes, [2] though the term is sometimes additionally applied to abnormal or irrational fear of light, such as ...
Photopsia is the presence of perceived flashes of light in the field of vision. It is most commonly associated with: [4] posterior vitreous detachment; migraine aura (ocular migraine / retinal migraine) migraine aura without headache; scintillating scotoma; retinal break or detachment; occipital lobe infarction (similar to occipital stroke)
Severe cases are most common in older adults (those older than 60 years, [73] and especially those older than 80 years). [100] Many developed countries do not have enough hospital beds per capita , which limits a health system 's capacity to handle a sudden spike in the number of COVID-19 cases severe enough to require hospitalisation. [ 101 ]
Once the fluid has resolved, either spontaneously or through treatment, distortion is reduced and visual acuity improves as the eye heals. However, some visual abnormalities can remain even where visual acuity is measured at 20/20. This includes localized reductions in light sensitivity as assessed by visual field testing (microperimetry). [34]
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With the eye generally profusely watering, the type of tears being produced have little adhesive property. Water or saline eye drops tend therefore to be ineffective. Rather a 'better quality' of tear is required with higher 'wetting ability' (i.e. greater amount of glycoproteins) and so artificial tears (e.g. viscotears) are applied frequently.
Dementia Risk For People 55 And Older Has Doubled, New Study Finds. Sometimes, this presents in the form of diseases like Alzheimer’s or dementia. The severity of memory loss in seniors dictates ...
The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2]