OPTHALM Flashcards

1
Q

What is a slit lamp?

A

a microscope with light source used during an eye exam
allows ophthalmologist to closely see the structures at the front and inside the eye

fluorescein is used with slit lamp in cases of corneal ulceration or FB

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2
Q

How is glaucoma investigated?

A

Fundoscopy - optic disc cupping, optic disc pallor, bayonetting of vessels, cup notching and disc haemorrhages

Slit lamp - optic nerve and fundus assessed

OCT - measure corneal thickness

gonioscopy - detect FB in ete with use of fluorescein dye

applantation tonometry - measures IOP

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3
Q

How are cataracts investigated?

A

Opthalmoloscopy after pupil dilatation
- normal fundus and optic nerve

Slit lamp = visible cataract

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4
Q

What is involved in fluorescein dye investigation? what it is used for?

A

A orange dye and a vlue light is used to detect foreign bodies in the eye

the test can also detect damage to the cornea
- ulcers, abrasions etc

the slit-lamp opthlamoscope is used to visualise the changes/FBs

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5
Q

What is fundoscopy?

A

a test allowing visualisation of the fundus - back of the eye

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6
Q

What is the amsler grid?

A

a tool used by opticians use to detect visual problems resulting from damage to the macula - central part of the retina or the optic nerve

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7
Q

What is optical coherence tomography?

A

OCT is a non-invasive imagine test
- light waves used to take cross-sectional pictures from the retina

allows visualisation of the retina’s distinctive layers
- map and measure its thickness

they can also help to guide treatment for glaucoma and other diseases of the retina such age related macular degeneration and diabetic retinopathy

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