視度 is read as しど (shido) and means visibility.
しど
shido
しかんど
luminous sensitivity
しせんそくど
radial velocity
とうしど
horizontal transparency
どがいし
disregarding
しや
field of vision
してん
visual point (position of the eye in calculations of optical instruments)
しりょく
eyesight
しさつ
inspection
してい
(public) attention
しせん
one's line of sight
しかい
しちょうりつ
ratings (e.g. of a television program)