<code id='F49948B3A1'></code><style id='F49948B3A1'></style>
    • <acronym id='F49948B3A1'></acronym>
      <center id='F49948B3A1'><center id='F49948B3A1'><tfoot id='F49948B3A1'></tfoot></center><abbr id='F49948B3A1'><dir id='F49948B3A1'><tfoot id='F49948B3A1'></tfoot><noframes id='F49948B3A1'>

    • <optgroup id='F49948B3A1'><strike id='F49948B3A1'><sup id='F49948B3A1'></sup></strike><code id='F49948B3A1'></code></optgroup>
        1. <b id='F49948B3A1'><label id='F49948B3A1'><select id='F49948B3A1'><dt id='F49948B3A1'><span id='F49948B3A1'></span></dt></select></label></b><u id='F49948B3A1'></u>
          <i id='F49948B3A1'><strike id='F49948B3A1'><tt id='F49948B3A1'><pre id='F49948B3A1'></pre></tt></strike></i>

          fashion

          fashion

          author:focus    Page View:8
          Staring at the sun or at bright lights will leave behind a spotty imprint in your field of vision. Here's why. Matthew Orr, Alex Hogan/STAT

          Every time we look at the sun — or a camera flash goes off right in our eyes — we end up seeing spots.

          But what are those spots, exactly, and why do we see them?

          advertisement

          It all starts with the cornea, the transparent tissue through which light first enters the eye. The light makes its way to the back of the eye, where tiny, light-sensitive cells known as photoreceptors translate it into images the brain can understand. But when that light is too bright, those photoreceptors are forced to scramble behind the scenes to process the excess.

          In the new episode of “Boddities,” I take a look inside the eye to get to the bottom of bright spots.

          Watch other “Boddities” episodes:

          advertisement

          Related: Watch: Episode 4: Why do our ears pop?

          Related: Watch: Episode 3: Why doesn’t your stomach digest itself?

          Related: Watch: Episode 2: Why does it hurt to get water up your nose?

          Related: Watch: Episode 1: Does drinking soda help settle an upset stomach?

          explore

          Moonlake's readout produced a cash windfall. Risks remain
          Moonlake's readout produced a cash windfall. Risks remain

          MollyFerguson/STATFortwodaysstartingonSunday,MoonlakeImmunotherapeuticshappilycrunchednumbersandshar

          read more
          The system is set up to fail children with medical complexity
          The system is set up to fail children with medical complexity

          AdobeManyfamiliestakeforgrantedtheritualoftakinganewbornbabyhome,carseatandcuratedswaddleblanketsint

          read more
          Peter Hotez and the public health issue of online harassment
          Peter Hotez and the public health issue of online harassment

          AdobeFather’sDayweekendwasanythingbutcalmonTwitter,whicheruptedasvaccineexpertPeterHotezwaschallenge

          read more

          Stephen Quake on the Chan Zuckerberg quest to conquer disease

          StephenQuake:"OurNorthStarforthenextdecadeisunderstandingthemysteriesofthecell."ChanZuckerbergInitia