Ophthalmology Anatomy

Question 1

The Optic Nerve passes through the

Answer 1

Optic Chiasm

Question 2

The margin of the orbit

Answer 2

Orbital rim

Question 3

The muscular layer of the eye lid is known as

Answer 3

The orbicularis oculi and the levator palpebrae superiors.

Question 4

Orbicularis oculi supplied by

Answer 4

Oculomotor

Question 5

Levator palpebrae superiors supplied by

Answer 5

Facial

Question 6

Nerve responsible for blinking and normal eye lid opening

Answer 6

CNIII

Question 7

Nerve responsible for scrunching the eye

Answer 7

CNVII

Question 8

Responsible for the secretion of tarsal fluid

Answer 8

Tarsal glands

Question 9

The fold of the conjunctiva, found at the junction of the eye and the lid

Answer 9

Fornix

Question 10

Nerve that supplies lacrimal gland (parasympathetic(

Answer 10

CNVII

Question 11

Tears drain through the - and then into the - , eventually draining into the -

Answer 11

Canaliculi, nasolacrimal duct, inferior nasal meatus

Question 12

Fibrous part of the eye made up of

Answer 12

Sclera and cornea

Question 13

Uvea made up of

Answer 13

Iris, ciliary body and choroid

Question 14

Retina made up of (from back)

Answer 14

Photoreceptors, ganglion cells and axons.

Question 15

Anterior segment

Answer 15

Everything in front of the lens

Question 16

Posterior segment

Answer 16

Behind the lens to the retina

Question 17

Aqueous humour produced by

Answer 17

The ciliary body

Question 18

Aqueous humour drains into the

Answer 18

Canal of schlemm

Question 19

Outline the arterial supply from carotid onwards

Answer 19

Carotid - Internal - ophthalmic - central retinal + posterior ciliary

Question 20

Central retinal vein drains into

Answer 20

The cavernous sinus

Question 21

Orbital blow out fracture causes

Answer 21

Numbness over the maxillary nerve distribution

Question 22

Optic disk is in fact …

Answer 22

The entrance for the optic nerve

Question 23

Optic nerve is lined by

Answer 23

The meninges

Question 24

What is the macula?

Answer 24

The region of the retina with the greatest density of cones

Question 25

The fovea is

Answer 25

The centre of the macula - it has the highest density of cones

Question 26

Afferent innervation to the face

Answer 26

CNV

Question 27

Outline the innervation of the blink reflex

Answer 27

Afferent is V1, efferent is VII

Question 28

Nerve that brings about parasympathetic pupillary constriction

Answer 28

CNIII

Question 29

Sympathetic action on eye

Answer 29

Mueller’s opens eyes wide

Question 30

‘Ring’ of muscle around the iris

Answer 30

Sphincter pupillae

Question 31

Bands of muscle which straddle the iris

Answer 31

Dilator pupillae

Question 32

Pupillary light reflex nerve supply

Answer 32

Afferent is CNII, efferent is CNIII

Question 33

In NEAR vision, the ciliary muscles contract and the lens

Answer 33

Bulges

Question 34

In FAR vision the ciliary muscle relaxes and the lens

Answer 34

Flattens

Question 35

Third nerve palsy presents with

Answer 35

Down and out

Question 36

Fourth nerve palsy presents

Answer 36

Up and out

Question 37

Sixth nerve palsy presents

Answer 37

Medial deviation

Question 38

Esotropia

Answer 38

Affected eye points inwards

Question 39

Exotropia

Answer 39

Affected eye points outwards

Question 40

Hypertropia

Answer 40

Affected eye points upwards

Question 41

Hypotropia

Answer 41

Affected eye points downwards

Question 42

Fixed dilated pupil suggests

Answer 42

CNIII pathology

Question 43

Fixed pin point pupil suggests

Answer 43

Horner’s syndrome

Question 44

An abnormally enlarged pupil is known as

Answer 44

Mydriatic

Question 45

An abnormally constricted pupil is known as

Answer 45

Miotic

Question 46

Horner’s syndrome presents with

Answer 46

Proptosis (bulging), meiosis (constricted pupil) and anhydrosis (no sweating)