Where does the optic nerve enter the eye?
multipleQAs
Through what does the optic nerve enter the eye? Where does the optic nerve pass through to enter the eye?
optic canal
optic disc
Blind spot (vision) Optic nerve
Where does the optic nerve enter the eye?
Optic nerve Ophthalmic artery Blind spot (vision) Photophobia Central retinal artery Optic disc Visual system Eye development Choroid Oculomotor nerve
The <b>optic nerve</b> leaves the orbit (<b>eye</b> socket) via the optic canal, running postero-
medially towards the optic chiasm, where there <b>is</b> a partial decussation&nbsp;... The ophthalmic artery (OA) <b>is</b> the first branch of the internal carotid artery distal to 
the ... The ophthalmic artery can also pass superiorly to the <b>optic nerve</b> in a 
minority of cases. ... turns superiorly and penetrates the <b>optic nerve</b>, continuing 
along the center of the <b>optic nerve</b>, <b>entering the eye</b> to supply the inner retinal 
layers. In both images, 1 denotes the retina and 2 the nerve fibers, including the <b>optic</b> 
<b>nerve</b> (3). Distribution of rods and cones along a line passing through the fovea 
and the blind spot of a human <b>eye</b>. A blind spot, scotoma, <b>is</b> an obscuration of the 
visual field. A particular blind spot known as the ... thought that the point at which 
the <b>optic nerve entered the eye</b> should actually&nbsp;... Photophobia <b>is</b> a symptom of abnormal intolerance to visual perception of light. 
As a medical ... Too much light can <b>enter the eye</b> if it <b>is</b> damaged, such as with 
corneal abrasion and retinal damage, or if its pupil(s) ... <b>Eye</b> trauma caused by 
disease, injury, or infection such as chalazion, episcleritis, keratoconus, or <b>optic</b> 
<b>nerve</b>&nbsp;... The central retinal artery (retinal artery) branches off the ophthalmic artery, 
running inferior to the <b>optic nerve</b> within its dural sheath to the eyeball. ... The 
central retinal artery <b>is</b> approximately 160 micrometres in diameter. ... artery gets 
occluded, there <b>is</b> complete loss of vision in that <b>eye</b> even though the fovea <b>is</b> not 
affected. The optic disc or <b>optic nerve</b> head <b>is</b> the point of exit for ganglion cell axons 
leaving the <b>eye</b>. Because there are no rods or cones overlying the optic disc,&nbsp;... The visual system <b>is</b> the part of the central nervous system which gives 
organisms the ability to ... Most of the <b>optic nerve</b> fibers end in the lateral 
geniculate nucleus (LGN). ... Light <b>entering the eye is</b> refracted as it passes 
through the cornea. <b>Eye</b> formation in the human embryo begins at approximately three weeks into 
embryonic development and continues through the tenth week. Cells from both 
the mesodermal and the ectodermal tissues contribute to the formation of the <b>eye</b>. 
Specifically, the <b>eye is</b> derived from the neuroepithelium, surface ectoderm, ... 
Neuroepithelium forms the retina, ciliary body, iris, and <b>optic nerves</b>. The choroid, also known as the choroidea or choroid coat, <b>is</b> the vascular layer of 
the <b>eye</b>, ... and outer and middle layers of the retina, are branches of the 
ophthalmic artery and <b>enter</b> the eyeball without passing with the <b>optic nerve</b>. ... 
Teleosts bear a body of capillary adjacent to the <b>optic nerve</b> called the choroidal 
gland. The oculomotor nerve <b>is</b> the third cranial nerve (CN III). It enters the orbit via the 
superior orbital fissure and innervates extrinsic <b>eye</b> muscles that enable most 
movements of the <b>eye</b> and that raise the eyelid. The nerve also contains fibers 
that innervate the intrinsic <b>eye</b> muscles that ... One passes beneath the <b>optic</b> 
<b>nerve</b> to the medial rectus.
via the optic canal
Optic nerve