What is another word for crystalline lens?
Pronunciation: [kɹˈɪstɐlˌa͡ɪn lˈɛnz] (IPA) 
The crystalline lens is a transparent, biconvex structure located in the eye that helps to focus light onto the retina. It is also known as the lens of the eye, the ocular lens, or simply as the lens. Other synonyms for the crystalline lens include the vitreous humour, the refractive lens, or the intraocular lens. The lens is composed mostly of water and proteins, and its ability to change shape allows for the eye to focus on objects at different distances. As we age, the lens can become less flexible, leading to difficulty with vision and the need for corrective lenses or surgery.
