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  2. Signs and symptoms of Graves' disease - Wikipedia

    en.wikipedia.org/wiki/Signs_and_symptoms_of...

    Dry eyes (due to loss of corneal moisture). [24] A sense of irritation, discomfort, or pain in the eyes. A tingling sensation behind the eyes or the feeling of grit or sand in the eyes. Excessive tearing that is often made worse by exposure to cold air, wind, or bright lights. Swelling or redness of the eyes. Stare; Lid lag (Von Graefe's sign)

  3. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    Visual snow: dynamic, continuous, tiny dots observed across the entire visual field at any time of the day, regardless of lighting conditions, persisting for more than three months. The dots are usually black/gray on a white background and gray/white on a black background; however, they can also be transparent, white flashing, or colored.

  4. Psychic staring effect - Wikipedia

    en.wikipedia.org/wiki/Psychic_staring_effect

    A 1913 study by John E. Coover asked ten subjects to state whether or not they could sense an experimenter looking at them, over a period of 100 possible staring periods. . The subjects' answers were correct 50.2% of the time, a result that Coover called an "astonishing approximation" of pure chance.

  5. Photokeratitis - Wikipedia

    en.wikipedia.org/wiki/Photokeratitis

    Photokeratitis is known by a number of different terms, including snow blindness, arc eye, welder's flash, sand eyes, bake eyes, corneal flash burns, flash burns, niphablepsia, or keratoconjunctivitis photoelectrica.

  6. Scincus scincus - Wikipedia

    en.wikipedia.org/wiki/Scincus_scincus

    The tail is short, tapering to a fine point. The coloration of this species is considered attractive, being yellow-caramel with brown-black cross bands. This lizard also has bead-like eyes so it can close them to keep sand out of its eyes. Similarly, its nostrils are very small to keep all of the sand out of its nose and lungs. [10]

  7. Spray foam - Wikipedia

    en.wikipedia.org/wiki/Spray_foam

    Isocyanates are powerful irritants to the eyes and gastrointestinal as well as the respiratory tracts. Direct skin contact with isocyanates can also cause marked inflammation. Some people say that their eyes feel like they have sand in them at the onset of problems. Some break out in a rash on their arms, chest, and neck.

  8. Computer vision syndrome - Wikipedia

    en.wikipedia.org/wiki/Computer_vision_syndrome

    Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.

  9. Recurrent corneal erosion - Wikipedia

    en.wikipedia.org/wiki/Recurrent_corneal_erosion

    Symptoms include recurring attacks of severe acute ocular pain, foreign-body sensation, photophobia (i.e. sensitivity to bright lights), and tearing often at the time of awakening or during sleep when the eyelids are rubbed or opened. Signs of the condition include corneal abrasion or localized roughening of the corneal epithelium, sometimes ...