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The pupil of the human eye can range in size from 2 mm to over 8 mm to adapt to the environment. The human eye can detect a luminance from 10 −6 cd/m 2, or one millionth (0.000001) of a candela per square meter to 10 8 cd/m 2 or one hundred million (100,000,000) candelas per square meter.
Periorbital puffiness, also known as puffy eyes, or swelling around the eyes, is the appearance of swelling in the tissues around the eyes, called the orbits. It is almost exclusively caused by fluid buildup around the eyes, or periorbital edema. Minor puffiness usually detectable below the eyes only is often called eye bags.
“Facial swelling is frequently your body triggering an immune response to help fight an allergy or an infection,” says Linda Lee, M.D., FACS, assistant professor of otolaryngology–head and ...
Face swelling combined with shortness of breath or lip swelling can be a sign of a life-threatening allergic reaction called anaphylaxis, which is a medical emergency, Lipner says. In these cases ...
Eyelid edema is a condition in which the eyelids are swollen and tissues contain excess fluid. It may affect eye function when it increases the intraocular pressure. Eyelid edema is caused by allergy, trichiasis or infections. [4] The main symptoms are swollen red eyelids, pain, and itching. Chronic eyelid edema can lead to blepharochalasis.
After the festival, the 28-year-old noticed that one of her eyes appeared swollen. She initially downplayed it as a stye, something she often experiences, and carried on with her day, going on a 2 ...
Medical illustrations have been made possibly since the beginning of medicine [1] in any case for hundreds (or thousands) of years. Many illuminated manuscripts and Arabic scholarly treatises of the medieval period contained illustrations representing various anatomical systems (circulatory, nervous, urogenital), pathologies, or treatment methodologies.