Acommodating

He will most often succeed in accommodating his sentiments to those of his conjoint.You wanted to go to sea, but he jumped at the chance of accommodating your desire with a vengeance.He wanted to learn the details of the accommodating illness.

Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies.

This dramatic change in focal power of the eye of approximately 15 dioptres (the reciprocal of focal length in metres) occurs as a consequence of a reduction in zonular tension induced by ciliary muscle contraction.

This process can occur in as little as 224 ± 30 milliseconds in bright light . By the fifth decade of life the accommodative amplitude can decline so that the near point of the eye is more remote than the reading distance. Once presbyopia occurs, those who are emmetropic (do not require optical correction for distance vision) will need an optical aid for near vision; those who are myopic (nearsighted and require an optical correction for distance vision), will find that they see better at near without their distance correction; and those who are hyperopic (farsighted) will find that they may need a correction for both distance and near vision.

In this, distances vary for individuals from the far point—the maximum distance from the eye for which a clear image of an object can be seen, to the near point—the minimum distance for a clear image.

Accommodation usually acts like a reflex, including as part of the accommodation-vergence reflex, but it can also be consciously controlled.

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