amaurosis
noun
am·au·ro·sis ˌa-mȯ-ˈrō-səs 
plural amauroses ˌa-mȯ-ˈrō-ˌsēz
: partial or complete loss of sight occurring especially without an externally perceptible change in the eye
amaurotic
ˌa-mȯ-ˈrä-tik
adjective 
Example Sentences
Recent Examples on the Web Both volunteers had suffered from LCA, or Leber congenital amaurosis, a severe vision impairment. 
Joshua Hawkins, BGR, 26 Jan. 2022 In previous studies, researchers have been able to treat a genetic form of blindness called Leber congenital amaurosis, by fixing a faulty gene that would otherwise cause photoreceptors to gradually degenerate. BostonGlobe.com, 24 May 2021 Ternent was diagnosed with leber congenital amaurosis as a child, a rare condition caused by a pair of faulty copies of the RPE65 gene. orlandosentinel.com, 16 May 2021 One of the diseases her team has focussed on is Laber congenital amaurosis, or LCA, which can be identified and diagnosed in infants. Science, 3 Dec. 2020 The people in this study have Leber congenital amaurosis, caused by a gene mutation that keeps the body from making a protein needed to convert light into signals to the brain, which enables sight. Marilynn Marchione, USA TODAY, 4 Mar. 2020 The people in this study have Leber congenital amaurosis, caused by a gene mutation that keeps the body from making a protein needed to convert light into signals to the brain, which enables sight. NBC News, 4 Mar. 2020 Last July, the pharmaceutical companies Editas Medicine in Cambridge, Massachusetts, and Allergan in Dublin launched a trial to treat the genetic disorder Leber congenital amaurosis 10, which can cause blindness, by editing eye cells. Heidi Ledford, Scientific American, 7 Jan. 2020 The blindness study is for people with one form of Leber congenital amaurosis. Washington Post, 25 July 2019 See More
Joshua Hawkins, BGR, 26 Jan. 2022 In previous studies, researchers have been able to treat a genetic form of blindness called Leber congenital amaurosis, by fixing a faulty gene that would otherwise cause photoreceptors to gradually degenerate. BostonGlobe.com, 24 May 2021 Ternent was diagnosed with leber congenital amaurosis as a child, a rare condition caused by a pair of faulty copies of the RPE65 gene. orlandosentinel.com, 16 May 2021 One of the diseases her team has focussed on is Laber congenital amaurosis, or LCA, which can be identified and diagnosed in infants. Science, 3 Dec. 2020 The people in this study have Leber congenital amaurosis, caused by a gene mutation that keeps the body from making a protein needed to convert light into signals to the brain, which enables sight. Marilynn Marchione, USA TODAY, 4 Mar. 2020 The people in this study have Leber congenital amaurosis, caused by a gene mutation that keeps the body from making a protein needed to convert light into signals to the brain, which enables sight. NBC News, 4 Mar. 2020 Last July, the pharmaceutical companies Editas Medicine in Cambridge, Massachusetts, and Allergan in Dublin launched a trial to treat the genetic disorder Leber congenital amaurosis 10, which can cause blindness, by editing eye cells. Heidi Ledford, Scientific American, 7 Jan. 2020 The blindness study is for people with one form of Leber congenital amaurosis. Washington Post, 25 July 2019 See More Word History
Etymology
borrowed from New Latin amaurōsis, borrowed from Greek amaúrōsis "dimming of sight, loss of sight without a visible cause," from amaurō-, variant stem of amaroún "to make dim or faint, weaken, impair" (verbal derivative of amaurós "dim, faint, having little or no sight," of uncertain origin) + -sis -sis
First Known Use
circa 1657, in the meaning defined above
Medical Definition
amaurosis
noun
am·au·ro·sis ˌam-ȯ-ˈrō-səs
plural amauroses -ˌsēz
: partial or complete loss of sight occurring especially without an externally perceptible change in the eye