| 释义 |
Range of accommodation
| (Optics) | the distance between the near point and the far point of distinct vision, - usually measured and designated by the strength of the lens which if added to the refracting media of the eye would cause the rays from the near point to appear as if they came from the far point. |
See also: Range
EncyclopediaSeerangerange of accommodation
range [rānj] 1. the difference between the upper and lower limits of a variable or of a series of values.2. an interval in which values sampled from a population, or the values in the population itself, are known to lie.range of accommodation the total amount of accommodative power of the eye; the difference in refractive power of the eye when adjusted for near and for far vision. The amplitude diminishes as age increases because elasticity of the lens is decreased.range of audibility the range between the extreme frequencies of sound waves beyond which the human ear perceives no sound: lower limit, 16 to 20 cycles per second; upper limit, 18,000 to 20,000 cycles per second.range of motion the range, measured in degrees of a circle, through which a joint can be extended and flexed; see also range of motion exercises.range of ac·com·mo·da·tionthe distance between an object viewed with minimal refractivity of the eye and one viewed with maximal accommodation.range of ac·com·mo·da·tion (rānj ă-kom'ŏ-dā'shŭn) The distance between an object viewed with minimal refractivity of the eye and one viewed with maximal accommodation. LegalSeeRange |