Vertebrate Visual Optics –-Ontogeny Phylogeny and Function of the Lens

脊椎动物视觉光学 — 个体发育系统发育和晶状体功能

• 批准号: RGPIN-2015-04951
• 负责人: Sivak, Jacob
• 金额: $ 2.04万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=630175
• 关键词: Vertebrate; Visual; Optics; Ontogeny; Phylogeny

The vertebrate eye consists of two refractive components, the crystalline lens and the cornea.The lens is a cellular structure that continues to develop through life. Lens optical (focussing) function is governed by its shape and its refractive index distribution. It is also affected by whether accommodation (the ability to adjust the focussing power) is brought about by changes in lens (and sometimes corneal) shape or through lens movement. The cornea is essentially not refractive when the eye is in water. In addition, the optical development of the eye can be altered experimentally by depriving the eye of clear vision, especially during eye growth.

脊椎动物的眼睛由两个屈光成分组成，晶状体和角膜。晶状体是一种细胞结构，在整个生命过程中不断发育。透镜的光学(聚焦)功能由透镜的形状和折射率分布决定。它还受到调节(调节焦距的能力)是否由晶状体(有时是角膜)形状变化或通过晶状体运动所带来的影响。当眼睛在水中时，角膜基本上是不屈光的。此外，通过剥夺眼睛的清晰视力，特别是在眼睛生长期间，可以通过实验改变眼睛的光学发育。