Editing 1080: Visual Field
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Next, there's the topic of {{w|night vision}}. The color-seeing {{w|cone cells}} don't work so well in the dark, whereas the black-and-white-seeing {{w|rod cells}} do. The rod cells can see shapes well, whereas the cone cells see detail (such as change in color), which Randall uses to explain why we can't read at night. | Next, there's the topic of {{w|night vision}}. The color-seeing {{w|cone cells}} don't work so well in the dark, whereas the black-and-white-seeing {{w|rod cells}} do. The rod cells can see shapes well, whereas the cone cells see detail (such as change in color), which Randall uses to explain why we can't read at night. | ||
β | {{w|Polarization (waves)|Polarization}} direction can be visible when quickly changing your viewing angle. Polarization is essentially the | + | {{w|Polarization (waves)|Polarization}} direction can be visible when quickly changing your viewing angle. Polarization is essentially the direction of waves. Light, being a wave, has a direction, and is thus polarized. Polarized lenses, for example, would have "slits" to allow only light that is polarized in a certain direction to come through (blocking the light in other directions). {{w|LCD}} screens operate on the principle of blocking and rotating polarized light. |
{{w|Floater|Floaters}} are deposits within the eye's {{w|vitreous humor}}. While normally transparent, they can occasionally cause {{w|refraction}} of light, making them visible, particularly on bright, blue surfaces. Randall points out that while some floaters are caused by breakdown over time, the others have a more mysterious origin. | {{w|Floater|Floaters}} are deposits within the eye's {{w|vitreous humor}}. While normally transparent, they can occasionally cause {{w|refraction}} of light, making them visible, particularly on bright, blue surfaces. Randall points out that while some floaters are caused by breakdown over time, the others have a more mysterious origin. |