Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Foundations of Practise > opthalmology > Flashcards

opthalmology Flashcards

1
Q

What is myopia

A

near sightedness

Imagine is projected infront of the retina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what kind of lens corrects myopia

A

concave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is hypermetropia

A

farsightedness

image is focussed behind the retina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what kind of lens corrects hypermetropia

A

convex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is astigmatism

A

rugby shaped causing distortion of light causing loss of visual clarity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What kind of lens corrects astigmatism

A

cylindrical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is presbyopia

A

stiffening of the lens from 4th decade effecting accomodation and near vision

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is esotropia

A

inward deviation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is exotropia

A

outward deviation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is hypertropia

A

upward deviation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is hypotropia

A

inward deviation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Third nerve palsy

A

down and out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

fourth nerve palsy

A

up and out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

6th nerve palsy

A

medial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is strabismus

A

one eye is misaligned with the other

affects 1 in 20 children

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When is strabismus normal

A

under 3 months before normal binocular co-ordination develops

17
Q

What is a pseudo squint

A

a broad nasal bridge can give the appearance of a squint however on testing the child does not have strabismus

18
Q

What is concomitant strabismus

A

degree of deviation does not vary with gaze as it’s a the balance between two muscles has been lost and not that there is paralysis or limitation of a muscle

19
Q

What is a nonconcomitant strabismus

A

Degree of deviation varies with gaze suggesting a neurological or muscular disease causing paresis or paralysis of the extra-ocular muscles

20
Q

What is a latent strabismus

A

present only when the use of both eyes is interrupted by covering one eye

21
Q

What is a manifest strabismus

A

present when both eyes are being used so when one eye views the object of interest the other is deviated. can be constant or intermittent

22
Q

What strabismus’ give rise to concern about underlying concern

A 
constant unilateral exotropias
any acquired incomitant squint
late onset (>3-4yrs) esotropia
23
Q

What is the most common childhood strabismus

A

accomodative estropia commonly seen in hypermetropia

24
Q

What is ptosis

A

lowering of upper eyelid (levator muscle)

25
Q

Causes of congenital ptosis

A
  • congenital disinsertion of the levator muscle

- Marcus0Gunn ptosis

26
Q

Common causes of third nerve palsy in children

A 
trauma - head injury
meningitis
tumour causing compression
raised ICP
neurovascular compromise
27
Q

What is the most common childhood strabismus

A

accomodative estropia commonly seen in hypermetropia

28
Q

What is ptosis

A

lowering of upper eyelid (levator muscle)

29
Q

Causes of congenital ptosis

A
  • congenital disinsertion of the levator muscle

- Marcus0Gunn ptosis

30
Q

Common causes of third nerve palsy in children

A 
trauma - head injury
meningitis
tumour causing compression
raised ICP
neurovascular compromise

Foundations of Practise (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions