Anatomy Of Eye

Question 1

Shape of eye

Answer 1

Ablate spheroid
2 spheres fused together

Question 2

Poles of eye

Answer 2

Anterior
Posterior

Question 3

Weight of eye

Answer 3

7 g

Question 4

Circumference of eye

Answer 4

75 mm

Question 5

Volume of eye

Answer 5

6.5ml

Question 6

Coats of eyeball

Answer 6

Outer / fibrous
Middle / vascular (uveal)
Inner / nervous

Question 7

Fibrous coat

Answer 7

Cornea(1/6) + sclera(5/6)
Limbus is junction b/w 2 (attachment of conjunctiva)

Question 8

Vascular /middle coat parts

Answer 8

(uvea)
Iris (+pupil)
Ciliary body (ora serrata to iris)
Choroid. (optic disc to ora serrata)

Question 9

Nervous/ inner coat

Answer 9

(retina)
Optic disc to ora serrata
Visual function
Projects to cortex via visual pathway

Question 10

Segments / chambers of eye

Answer 10

Anterior
Posterior

Question 11

Anterior segmentof eye

Answer 11

Lens + ciliary body + iris + cornea + aqueous chambers

Question 12

Anterior chamber of aqueous humour

Answer 12

2.5mm deep
0.25ml aqueous humour
Shallower in Hypermetropes
Deeper in Myopes

Question 13

Role of aqueous humour

Answer 13

Provide nutrient and O2 to lens + cornea

Question 14

Peripheral recess for drainage of aqueous humour

Answer 14

Angle of anterior chamber of aqueous segment

Question 15

Posterior chamber of aqueous segment

Answer 15

Triangular space
0.06 ml aqueous humour

Question 16

Posterior segment

Answer 16

Vitreous humour
Retina
Choroid
Optic disc

Question 17

Arteries supplying eye

Answer 17

Ophthalmic artery braches
Ocular group + orbital group

Question 18

Ocular group

Answer 18

Central retinal artery
Long post ciliary arteries (2)
Short post ciliary arteries (20)
Muscular branches (ant ciliary arteries (7)

Question 19

Orbital group

Answer 19

Lacrimal artery (lateral palpabral A)
Reccurent meningeal A
Supraorbital A
Medial palpebral A
Post Ethmoidal A
Ant. Ethmoidal A
Dorsal nasal A (terminal)
Supratrochlear A. ( Terminal)