Eyelids

Question 1

Upper eyelid covers ____ mm of cornea

Answer 1

2 mm

Question 2

Lower eyelid covers ____ mm of cornea

Answer 2

0

It touches the limbus

Question 3

Layers of eyelid

Answer 3

Skin 
Subcutaneous tissue
Striated muscles 
  -LP
  -orbicularis oculi 
Sub muscular are areolar tissue
    -blood vessels and nerves
Fibrous skeleton 
Tarsus 
Orbital septum
Smooth muscles (muller)
Conjunctiva (palpebral)

Question 4

Origin of LPS

Answer 4

Orbital apex

Lesser wing of sphenoid

Question 5

Insertion of LPS

Answer 5

Anterior tarsus

Question 6

Nerve supply of LPS

Answer 6

CN 3

Question 7

Normal elevation of eyelid (by LPS) in mm

Answer 7

> 15 mm

Question 8

Congenital ptosis main features

Answer 8

LPS dystrophy
Absence if lid crease
Lid lag sign positive

Question 9

Acquired ptosis causes

Answer 9

Neurogenic ptosis
Myogenic
Mechanical

Question 10

Amount of ptosis

Classification

Answer 10

Mild - <= 2 mm
Moderate- 3 mm
Severe - >= 4 mm

Question 11

Diameter of cornea

Answer 11

12 mm

Question 12

Marginal reflex distance 1

Answer 12

Distance between upper eyelid to pupil

4 mm- normal

Question 13

Marginal reflex distance 2

Answer 13

Pupil to lower eyelid

Normal - 6 mm

Question 14

Everbusch procedure

Answer 14

LPS resection through skin approach for ptosis

Question 15

Treatment of acquired ptosis

Answer 15

Treat underlying cause

Mild ptosis-
Fasanella servat operation
Mullerectomy

Question 16

Treatment of congenital ptosis (mild,moderate,severe)

Answer 16

Mild- LPS plication
Moderate-LPS resection (frontalis sling operation)
Severe- LPS replacement

Question 17

Marcus Gunn jaw winking phenomenon due to

Answer 17

Abnormal 5th nerve between pterygoid syndrome and LPS

Question 18

Crocodile tears in Marcus Gunn jwp why?

Answer 18

Abnormal 7th nerve

Question 19

Marcys Gunn jwp treatment

Answer 19

LPS disinsertion from tarsus + frontalis sling

Question 20

BPE syndrome full form

Answer 20

Blepharophimosis
Ptosis
Epicanthus inversus

Question 21

Pseudo-ptosis causes (4)

Answer 21

Enopthalmos
C/L lid retraction
Brow ptosis
Blepharochalasis

Question 22

Parts of orbicularis oculi

Answer 22

Orbitalis
Palpebral
Lacrimal

Question 23

Spontaneous blinking by which part (muscle)

Answer 23

Pretarsal orbicularis oculi

Question 24

Voluntary blinking 
Which part (muscle)

Answer 24

Preseptal orbicularis oculi

Question 25

Forceful closure | Which part muscle

Answer 25

Orbitalis orbicularis oculi

Question 26

Bells phenomenon

Answer 26

Upward and outward rolling of eyes | Normal

Question 27

Cogan’s lid twitch

Answer 27

Ocular myasthenia

Question 28

Curtain sign

Answer 28

Ocular myasthenia

Question 29

Signs NOT present in ocular myasthenia

Answer 29

``` NO Pain Proptosis Pupil involvement Paraesthesia Perception ```

Question 30

Colomboma

Answer 30

Loss of eyelids

Question 31

Poliosis

Answer 31

Whitening of eyelashes

Question 32

Causes of poliosis

Answer 32

Vitiligo | Vogt kayanagi harada

Question 33

Madarosis

Answer 33

Absence of eyelashes

Question 34

Causes of madarosis

Answer 34

Leprosy | Blepharitis

Question 35

Ankyloblepharon

Answer 35

Adhesion between upper and lower eyelids

Question 36

Symblepharon

Answer 36

Adhesion between bulbar and palpebral conjunctiva

Question 37

Causes of symblepharon

Answer 37

Chemical injuries | Severe dry eyes

Question 38

Tylosis

Answer 38

Thick eyelid margins

Question 39

Distichiasis

Answer 39

Extra row of eyelashes

Question 40

Trichiasis

Answer 40

Misdirection of eyelashes

Question 41

Entropion

Answer 41

Eyelid turned in

Question 42

Ectropion

Answer 42

Eyelid turned out

Question 43

Senile entropion treatment (4) | 1 imp

Answer 43

Jones Weiss Quickert Wheeler

Question 44

MCC of entropion

Answer 44

Senile

Question 45

Causes of entropion

Answer 45

Senile Cicatricial Spastic Congenital

Question 46

Treatment if cicatricial entropion

Answer 46

Tarsal wedge resection

Question 47

Congenital entropion treatment

Answer 47

Holtz

Question 48

MCC of ectropion

Answer 48

Involutional / senile

Question 49

Types of ectropion

Answer 49

``` Senile Cicatricial Paralytic Mechanical Congenital ```

Question 50

Treatment of senile ectropion

Answer 50

Medial conjunctivoplasty Pentagon excision Byron smith Kahn’s szymanowski

Question 51

Tear film layers

Answer 51

``` AIR Lipid Aqueous (thickest) Mucus CORNEA ```

Question 52

Chalazion

Answer 52

Meibomian gland is blocked | Lipgranulamatous inflammation

Question 53

MCC of chalazion

Answer 53

Eyelid rubbing

Question 54

Internal hordeolum

Answer 54

Infected chalazion

Question 55

External hordeolum

Answer 55

Infection of hair follicle >> zeiss