Showing posts with label eye examination. Show all posts
Showing posts with label eye examination. Show all posts

Wednesday

Snellen Chart and Documentation.

Dear All, Thanks For Reading.


Lines on the Snellen chart are as follows
Use distance glasses
6 Able to read at 6m what can normally be read at 6m
‘6/​6’
‘9 Able to read at 6m what can normally be read at 9m
‘6/​9’
12 Able to read at 6m what can normally be read at 12m
‘6/​12’
18 Able to read at 6m what can normally be read at 18m
‘6/​18’
24 Able to read at 6m what can normally be read at 24m
‘6/​24’
36 Able to read at 6m what can normally be read at 36m
‘6/​36’
60 Able to read at 6m what can normally be read at 60m
‘6/​60’
Counts fingers; counts fingers held ½m distance
‘CF’
Hand movement; perceives hand moving ¼m distance
‘HM’
Perceives light; can see a torchlight when shone into eye
‘PL’
No light perception, abbreviated to ‘no PL ’, ie blind
‘no PL’
m = metres

Tuesday

Eye Examination.

Dear All, Thank For Reading.

This post is meant for someone who is searching for the info right now.
Source; ohcs- handbook.

The history indicates the part of the examination to focus on. Asking about trauma, symptoms of pain vs irritation, loss of vision, and pattern and speed of onset. Examination includes visual acuity, optic nerve function (pupil reactions and colour vision), visual fields, eye movements and ophthalmoscopy to assess the ocular media and the retina (see box).

Acuity

Visual field

Extraocular movements

Ophthalmoscopy

Slit lamp examination

The indirect ophthalmoscope

External eye