Eyes of the Illithid - Mind flayer eye rework

Eyes of the Illithid:

Gives Illithid white eyes.

Also adds Darkvision and Sunlight Sensitivity.

The eyes of a living Illithid are featureless and white, similar in appearance to blind cave fish that have evolved away from the need to register visible light. This comparison, however, is inaccurate. Illithids actually possess supernormal visual capacities in the infrared spectrum; the pale sclera coating illithid eyes screens out all visible light, but allows infrared light easily.

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Illithid Infravisual Range

Illithid Infravisual range varies with ambient visible light. As ambient light increases, illithid infravisual range decreases, as noted on the following table:

Darkness/starlight      480 feet

Candle/moonlight       240 feet

Torch light                   120 feet

Lantern/magical light   60 feet

Light on a cloudy day  30 feet

Direct sunlight              15 feet

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The sclera also insulates the illithid's own body heat from its infravisual organs. Thus, illithids always perceive the world with infravision, whether in the dark or in bright light. Unlike other races that possess less developed senses of infravision, illithids' infravisual clarity compares favorably with normal vision with its functional range. This range decreases in brighter light due to the increasing "polarization" of the white sclera.

(Strom Wakeman, The Illithiad)