The blank" >target="_blank" >process by which the human eye changes blank" >target="_blank" >glossary/hypocenter/" class="glossaryLink" data-cmtooltip="44552d2d1f1db4ace8df9a87605727ce" blank" >target="_blank" >focus for objects at various distances, involving changes in the shape of the blank" >target="_blank" >glossary/crystalline/" class="glossaryLink" data-cmtooltip="0f76bda10e7bd6c6d428095ee5dd9537" blank" >target="_blank" >crystalline lens. (Ching, 1995)