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Peripheral (posterior) vitreous detachment occurs when the gel around the eye separates from the retina. This can naturally occur with age. However, if it occurs too rapidly, it can cause photopsia which manifests in flashes and floaters in the vision. Typically, the flashes and floaters go away in a few months.
The intense heat generated by a lightning strike can burn tissue, and cause lung damage, and the chest can be damaged by the mechanical force of rapidly expanding heated air. [ 4 ] Just as heat can cause expanding air in the lungs, the explosive shock wave created by lightning (the cause of thunder) can cause concussive and hearing damage at ...
However, if the eyes are exposed to a high enough level of light, such as a nuclear explosion, the blindness can become permanent. Flash blindness may also occur in everyday life. For example, the subject of a flash photograph can be temporarily flash blinded. This phenomenon is leveraged in non-lethal weapons such as flash grenades and laser ...
Mayo Clinic Health System is a system of community-based medical facilities. It is owned by Mayo Clinic and was founded in 1992. The organization focuses on providing medical care in rural communities in Minnesota , Iowa , and Wisconsin .
Millions of people are catching a glimpse of the solar eclipse — but the spectacle can lead to eye damage if you’re not careful. That’s because looking at the sun without eclipse glasses can ...
It can cause vision problems, drooping eyelids, and difficulty walking, talking, chewing tough food, and even limit your ability to lift your arms above their head.
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 ...
Holiday gatherings can increase the risk of spreading infections. Doctors share tips to keep from getting sick when spending time with family and friends. 6 ways to prevent holiday illness: Ask a ...