_:vb50946572 . _:vb50946572 . _:vb50946572 "url:https://www.ncbi.nlm.nih.gov/pubmed/20582770"^^ . _:vb50946572 "url:https://www.aao.org/bcscsnippetdetail.aspx?id=0554ca9e-b088-4bfe-91ab-2fc77bb0ea67"^^ . _:vb50946572 . _:vb50946572 "An eye disease that is characterized by decreased ability to change the optical power of the eye to maintain a clear image."^^ . _:vb50946572 . _:vb50946572 .