Slit Lamp Illuminations Flashcards by Megan G | Brainscape

Q

Diffuse Illumination: Angle

A

10-70 degrees temporally

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Q

Diffuse Illumination: Magnification

A

Low

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Q

Diffuse Illumination: Illumination

A

Medium-high

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Q

Diffuse illumination: Microscope position

A

Central - normal to the cornea

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Q

Diffuse Illumination: Beam Thickness

A

Wide

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Q

Diffuse Illumination: Filter

A

Diffuse filter

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Q

Indirect Illumination: Angle

A

0-90 degrees

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Q

Indirect Illumination: Magnification

A

Low-high

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Q

Indirect Illumination: Illumination

A

Low-medium

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Q

Indirect Illumination: Beam thickness

A

Narrow-wide

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Q

Indirect Illumination: Filter

A

None needed

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Q

Retro-illumination: Angle

A

0-45 deegrees

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Q

Retro-illumination: Magnification

A

Low-high

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Q

Retro-illumination: Illumination

A

Low-medium

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Q

Retro-illumination: Beam thickness

A

1-4mm

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Q

Retro-illumination: Filter

A

None needed

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Q

Specular Reflection: Angle

A

40-50 degrees

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Q

Specular Reflection: Microscope position

A

Angle equal and opposite to illumination

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Q

Specular Reflection: Magnification

A

Medium-high

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Q

Specular Reflection: Illumination

A

High

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Q

Specular Reflection: Beam thickness

A

Narrow

Q

Specular Reflection: Filter

A

None needed

Q

Sclerotic Scatter: Angle

A

40-60 degrees

Q

Sclerotic Scatter: Microscope position

A

Central to cornea

Q

Sclerotic Scatter: Magnification

A

Low to medium if required

Q

Sclerotic Scatter: Illumination

A

High

Q

Sclerotic Scatter: Beam thickness

A

Narrow

Q

Sclerotic Scatter: Filter

A

None needed

Q

Parallelepiped: Angle

A

30-60 degrees

Q

Parallelepiped: Magnification

A

Low-high

Q

Parallelepiped: Illumination

A

Medium - increase as needed

Q

Parallelepiped: Beam thickness

A

up to 2mm

Q

Optic Section: Angle

A

30-60 degrees

Q

Optic Section: Magnification

A

Medium - increase as needed

Q

Optic Section: Illumination

A

Medium-high

Q

Optic Section: Beam thickness

A

Thinnest possible (0.1-0.4mm)

Q

Conical: Angle

A

~45 degrees

Q

Conical: Magnification

A

Medium-high

Q

Conical: Illumination

A

Maximum

Q

Conical: Beam thickness

A

1-2mm diameter

Q

Structures Observed: Diffuse (5)

A

Anterior segment

Bulbar Conjunctiva

Eyelids

Eyelashes

Tarsal Conjunctiva

Q

Structures Observed: Sclerotic Scatter

A

Cornea

Q

Structures Observed: Optic Section (2)

A

Cornea

Crystalline Lens

Q

Structures Observed: Parallelepiped

A

Cornea

Q

Structures Observed: Conical Beam

A

Anterior Chamber

Q

Structures Observed: Indirect

A

Cornea

Q

Structures Observed: Specular Reflection (2)

A

Endothelium

Tear Film

Q

Abnormalities: Diffuse

A

Conjunctival Hyperaemia

Papillae

Follicles

Blepharitis

MGD

Q

Abnormalities: Sclerotic Scatter

A

Opacity

Oedema

Scarring

Q

Abnormalities: Parallelepiped

A

Scarring

Opacities

Vascularisation

Foreign bodies

Infiltrates

Corneal staining

Q

Abnormalities: Conical Beam

A

Flare

Q

Abnormalities: Indirect

A

Opacities

Microcysts

Corneal transparency

Nerve fibres

Limbal loops