ora serratan.
/ˌɔːrə səˈrɑːtə/, U.S. /ˈˌɔrə səˈrɑdə/ Anatomy.
The serrated border between the ciliary body and the retina.
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the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > retina > other parts of retina
macula1670
fundus1682
yellow spot1798
macula lutea1818
ora serrata1833
corresponding points1841
identical points1841
blind spot1864
fixation-point1890
cyanolabe1958
1833 W. Lawrence Treat. Dis. Eye 20 Here we observe a dentated line (ora serrata), in front of which the membrane exhibits a number of longitudinal folds.
1838 Penny Cycl. X. 138/2 The retina terminates anteriorly in a thin scalloped edge, fitting into corresponding irregularities called the ora serrata in the posterior margin of the ciliary body.
1867 J. King Causes Chronic Dis. 1496 Choroido-retinal inflammation..commencing near the ora-serrata, from which it creeps backward toward the optic disc.
1908 L. Laurance Eye i. 17 The sensibility of the retina to light diminishes rapidly from the macula ring to the ora serrata.
1973 Brain Res. 63 285 Such new cells as are added after this period are added at the margin of the ora serrata.
1995 McGill Jrnl. Med. Spring 62/1 Between the 16th and 44th week of gestation, the vessels grow in a centrifugal pattern from the optic disc to the ora serrata (the far peripheral retina) to fully vascularize the retina.
This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).
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n.1833