ˈfɔɹsaɪt ˈfɔːsaɪt ˌhaɪpə(ɹ)məˈtɹəʊpɪə pɹɪˈvɪʒ(ə)n seeing ahead; knowing in advance; foreseeing abnormal condition in which vision for distant objects is better than for near objects a reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45