The Eye Flashcards
what are the whites of the eyes called, and what are they covered by on their surface
the sclera, covered by conjunctiva
what are the iris and pupil covered by
the cornea
where is the limbus found on the eye surface, and what is another name for it
it is the junction between the cornea and the conjunctiva
also called the corneoscleral junction
describe the location if the lacrimal gland
superolateral to the eye
what is the inside of the lower eye lid covered by
conjunctiva
where is the lacrimal lake found
in the very medial corner of the eye
ie the tear duct
what is the border between the conjunctiva of the sclera and the conjunctiva of the lower eye lid called
conjunctival fornix
what are the different layers of the eye, from outer to inner
fibrous (outer), uvea(vascular/middle), retina(photosensitive/inner layer)
what are the 2 different parts of the fibrous layer of the eye
sclera and cornea
what part of the eye are the eye muscles attached to
the sclera
what are the different parts of the uvea layer of the eye
iris, ciliary body, choroid
briefly describe the function of the ciliary body and the choroid
ciliary body = controls iris, shape of lens and aqueous humour
choroid = nutrition and gas exchange
what are the 3 main parts of the retina layer of the eye
the retina, macula and optic disc
describe how the eye is divided into the anterior and posterior segement
anterior segment = in front of lens
posterior segment = behind the lens(2/3rds of eye)
what is the anterior segment of the eye divided into
the anterior chamber(between cornea and iris) and posterior chamber(between iris and suspensory ligaments)
what segment of the eye contains the vitreous body/humour, and what is commonly found there
the posterior segment, common location for ‘floaters’
describe the circulation of aqueous in the eyes after it is secreted from the ciliary body
aqueous circulates in posterior chamber(nourishes lens), then passes through pupil to anterior chamber(nourishes cornea), then reabsorbed at iridocorneal angle
where is the aqueous in the eye reabsorbed into
into scleral venous sinus(Canal of Schlemm)
what are the only artery and vein supplying the retina
central artery of retina(an end artery) and central vein of retina
what arteries are involved in the supply of the eye
ophthalmic artery, ciliary arteries, central artery of retina
what veins are involved in the venous drainage of the eye
inferior and superior ophthalmic veins, both drain into cavernous sinus, orbit also drains anteriorly into facial vein
