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  "events": [ {
    "tStartMs": 6830,
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    "segs": [ {
      "utf8": "Have you ever noticed something swimming\nin your field of vision?"
    } ]
  }, {
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    "dDurationMs": 3613,
    "segs": [ {
      "utf8": "It may look like a tiny worm\nor a transparent blob,"
    } ]
  }, {
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    "dDurationMs": 3967,
    "segs": [ {
      "utf8": "and whenever you try to get\na closer look, it disappears,"
    } ]
  }, {
    "tStartMs": 18076,
    "dDurationMs": 2687,
    "segs": [ {
      "utf8": "only to reappear\nas soon as you shift your glance."
    } ]
  }, {
    "tStartMs": 21727,
    "dDurationMs": 2065,
    "segs": [ {
      "utf8": "But don't go rinsing out your eyes!"
    } ]
  }, {
    "tStartMs": 23816,
    "dDurationMs": 2577,
    "segs": [ {
      "utf8": "What you are seeing is a common phenomenon"
    } ]
  }, {
    "tStartMs": 26417,
    "dDurationMs": 1032,
    "segs": [ {
      "utf8": "known as a floater."
    } ]
  }, {
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    "dDurationMs": 4142,
    "segs": [ {
      "utf8": "The scientific name for these objects\nis Muscae volitantes,"
    } ]
  }, {
    "tStartMs": 32616,
    "dDurationMs": 2139,
    "segs": [ {
      "utf8": "Latin for \"flying flies,\""
    } ]
  }, {
    "tStartMs": 34779,
    "dDurationMs": 3130,
    "segs": [ {
      "utf8": "and true to their name,\nthey can be somewhat annoying."
    } ]
  }, {
    "tStartMs": 37933,
    "dDurationMs": 4112,
    "segs": [ {
      "utf8": "But they're not actually bugs\nor any kind of external objects at all."
    } ]
  }, {
    "tStartMs": 42069,
    "dDurationMs": 2262,
    "segs": [ {
      "utf8": "Rather, they exist inside your eyeball."
    } ]
  }, {
    "tStartMs": 45209,
    "dDurationMs": 3533,
    "segs": [ {
      "utf8": "Floaters may seem to be alive,\nsince they move and change shape,"
    } ]
  }, {
    "tStartMs": 48766,
    "dDurationMs": 1247,
    "segs": [ {
      "utf8": "but they are not alive."
    } ]
  }, {
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    "segs": [ {
      "utf8": "Floaters are tiny objects\nthat cast shadows on the retina,"
    } ]
  }, {
    "tStartMs": 54673,
    "dDurationMs": 2555,
    "segs": [ {
      "utf8": "the light-sensitive tissue\nat the back of your eye."
    } ]
  }, {
    "tStartMs": 58077,
    "dDurationMs": 1513,
    "segs": [ {
      "utf8": "They might be bits of tissue,"
    } ]
  }, {
    "tStartMs": 59614,
    "dDurationMs": 1108,
    "segs": [ {
      "utf8": "red blood cells,"
    } ]
  }, {
    "tStartMs": 60746,
    "dDurationMs": 1935,
    "segs": [ {
      "utf8": "or clumps of protein."
    } ]
  }, {
    "tStartMs": 62705,
    "dDurationMs": 3501,
    "segs": [ {
      "utf8": "And because they're suspended\nwithin the vitreous humor,"
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  }, {
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    "dDurationMs": 3047,
    "segs": [ {
      "utf8": "the gel-like liquid\nthat fills the inside of your eye,"
    } ]
  }, {
    "tStartMs": 69301,
    "dDurationMs": 2279,
    "segs": [ {
      "utf8": "floaters drift along\nwith your eye movements,"
    } ]
  }, {
    "tStartMs": 71604,
    "dDurationMs": 2727,
    "segs": [ {
      "utf8": "and seem to bounce a little\nwhen your eye stops."
    } ]
  }, {
    "tStartMs": 75291,
    "dDurationMs": 3241,
    "segs": [ {
      "utf8": "Floaters may be only\nbarely distinguishable most of the time."
    } ]
  }, {
    "tStartMs": 79460,
    "dDurationMs": 3251,
    "segs": [ {
      "utf8": "They become more visible\nthe closer they are to the retina,"
    } ]
  }, {
    "tStartMs": 82735,
    "dDurationMs": 3482,
    "segs": [ {
      "utf8": "just as holding your hand closer\nto a table with an overhead light"
    } ]
  }, {
    "tStartMs": 86241,
    "dDurationMs": 2486,
    "segs": [ {
      "utf8": "will result in a more\nsharply defined shadow."
    } ]
  }, {
    "tStartMs": 89555,
    "dDurationMs": 2025,
    "segs": [ {
      "utf8": "And floaters are particularly noticeable"
    } ]
  }, {
    "tStartMs": 91604,
    "dDurationMs": 2978,
    "segs": [ {
      "utf8": "when you are looking\nat a uniform bright surface,"
    } ]
  }, {
    "tStartMs": 94606,
    "dDurationMs": 1613,
    "segs": [ {
      "utf8": "like a blank computer screen,"
    } ]
  }, {
    "tStartMs": 96243,
    "dDurationMs": 1203,
    "segs": [ {
      "utf8": "snow,"
    } ]
  }, {
    "tStartMs": 97470,
    "dDurationMs": 1344,
    "segs": [ {
      "utf8": "or a clear sky,"
    } ]
  }, {
    "tStartMs": 98838,
    "dDurationMs": 4245,
    "segs": [ {
      "utf8": "where the consistency of the background\nmakes them easier to distinguish."
    } ]
  }, {
    "tStartMs": 103107,
    "dDurationMs": 3654,
    "segs": [ {
      "utf8": "The brighter the light is,\nthe more your pupil contracts."
    } ]
  }, {
    "tStartMs": 106785,
    "dDurationMs": 3913,
    "segs": [ {
      "utf8": "This has an effect similar\nto replacing a large diffuse light fixture"
    } ]
  }, {
    "tStartMs": 110722,
    "dDurationMs": 2296,
    "segs": [ {
      "utf8": "with a single overhead light bulb,"
    } ]
  }, {
    "tStartMs": 113042,
    "dDurationMs": 2281,
    "segs": [ {
      "utf8": "which also makes\nthe shadow appear clearer."
    } ]
  }, {
    "tStartMs": 116189,
    "dDurationMs": 3555,
    "segs": [ {
      "utf8": "There is another visual phenomenon\nthat looks similar to floaters"
    } ]
  }, {
    "tStartMs": 119768,
    "dDurationMs": 1551,
    "segs": [ {
      "utf8": "but is in fact unrelated."
    } ]
  }, {
    "tStartMs": 122382,
    "dDurationMs": 2378,
    "segs": [ {
      "utf8": "If you've seen tiny dots of light\ndarting about"
    } ]
  }, {
    "tStartMs": 124784,
    "dDurationMs": 2193,
    "segs": [ {
      "utf8": "when looking at a bright blue sky,"
    } ]
  }, {
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    "dDurationMs": 4097,
    "segs": [ {
      "utf8": "you've experienced what is known\nas the blue field entoptic phenomenon."
    } ]
  }, {
    "tStartMs": 132273,
    "dDurationMs": 2867,
    "segs": [ {
      "utf8": "In some ways,\nthis is the opposite of seeing floaters."
    } ]
  }, {
    "tStartMs": 135947,
    "dDurationMs": 1631,
    "segs": [ {
      "utf8": "Here, you are not seeing shadows"
    } ]
  }, {
    "tStartMs": 137602,
    "dDurationMs": 3426,
    "segs": [ {
      "utf8": "but little moving windows\nletting light through to your retina."
    } ]
  }, {
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    "dDurationMs": 2814,
    "segs": [ {
      "utf8": "The windows are actually caused\nby white blood cells"
    } ]
  }, {
    "tStartMs": 144820,
    "dDurationMs": 3066,
    "segs": [ {
      "utf8": "moving through the capillaries\nalong your retina's surface."
    } ]
  }, {
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    "dDurationMs": 4057,
    "segs": [ {
      "utf8": "These leukocytes can be so large\nthat they nearly fill a capillary"
    } ]
  }, {
    "tStartMs": 152777,
    "dDurationMs": 3130,
    "segs": [ {
      "utf8": "causing a plasma space\nto open up in front of them."
    } ]
  }, {
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    "dDurationMs": 2010,
    "segs": [ {
      "utf8": "Because the space\nand the white blood cells"
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  }, {
    "tStartMs": 159166,
    "dDurationMs": 2530,
    "segs": [ {
      "utf8": "are both more transparent to blue light"
    } ]
  }, {
    "tStartMs": 161720,
    "dDurationMs": 3241,
    "segs": [ {
      "utf8": "than the red blood cells\nnormally present in capillaries,"
    } ]
  }, {
    "tStartMs": 164985,
    "dDurationMs": 3056,
    "segs": [ {
      "utf8": "we see a moving dot of light\nwherever this happens,"
    } ]
  }, {
    "tStartMs": 168065,
    "dDurationMs": 3859,
    "segs": [ {
      "utf8": "following the paths of your capillaries\nand moving in time with your pulse."
    } ]
  }, {
    "tStartMs": 172829,
    "dDurationMs": 1957,
    "segs": [ {
      "utf8": "Under ideal viewing conditions,"
    } ]
  }, {
    "tStartMs": 174810,
    "dDurationMs": 4102,
    "segs": [ {
      "utf8": "you might even see what looks\nlike a dark tail following the dot."
    } ]
  }, {
    "tStartMs": 178936,
    "dDurationMs": 3642,
    "segs": [ {
      "utf8": "This is the red blood cells\nthat have bunched up behind the leukocyte."
    } ]
  }, {
    "tStartMs": 183428,
    "dDurationMs": 4251,
    "segs": [ {
      "utf8": "Some science museums have an exhibit\nwhich consists of a screen of blue light,"
    } ]
  }, {
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    "dDurationMs": 4539,
    "segs": [ {
      "utf8": "allowing you to see these blue sky sprites\nmuch more clearly than you normally would."
    } ]
  }, {
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    "dDurationMs": 3000,
    "segs": [ {
      "utf8": "While everybody's eyes experience\nthese sort of effects,"
    } ]
  }, {
    "tStartMs": 196219,
    "dDurationMs": 2580,
    "segs": [ {
      "utf8": "the number and type vary greatly."
    } ]
  }, {
    "tStartMs": 198823,
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    "segs": [ {
      "utf8": "In the case of floaters,"
    } ]
  }, {
    "tStartMs": 200339,
    "dDurationMs": 3148,
    "segs": [ {
      "utf8": "they often go unnoticed,\nas our brain learns to ignore them."
    } ]
  }, {
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    "dDurationMs": 2024,
    "segs": [ {
      "utf8": "However, abnormally numerous"
    } ]
  }, {
    "tStartMs": 206359,
    "dDurationMs": 2686,
    "segs": [ {
      "utf8": "or large floaters\nthat interfere with vision"
    } ]
  }, {
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    "dDurationMs": 4595,
    "segs": [ {
      "utf8": "may be a sign of a more serious condition,\nrequiring immediate medical treatment."
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  }, {
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    "segs": [ {
      "utf8": "But the majority of the time\nentoptic phenomena,"
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  }, {
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    "segs": [ {
      "utf8": "such as floaters and blue sky sprites,"
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  }, {
    "tStartMs": 220234,
    "dDurationMs": 3389,
    "segs": [ {
      "utf8": "are just a gentle reminder\nthat what we think we see"
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  }, {
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    "segs": [ {
      "utf8": "depends just as much\non our biology and minds"
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  }, {
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    "segs": [ {
      "utf8": "as it does on the external world."
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