Flashcards in Glaucoma (M3) Deck (87)
What are the major players in the presence of glaucoma?
1. optic nerve head
2. retinal nerve fiber layer
4. visual field testing
5. anterior chamber angle
6. central corneal thickness
What is the distance between the cup and the disc margin called?
What is the rule as far as thickness associated with the neuroretinal rim?
ISNT from thickest to thinnest
What is the normal disc size in microns? 1. What is considered large? 2
What is chorioretinal atrophy surrounding the optic nerve head called?
What are the two zones associated with parapapillary changes (and what do they surround)?
1. beta (surrounds optic nerve)
2. alpha (surrounds beta zone)
What are the different disc changes associated with glaucoma?
1. baring of BVs
3. laminar dots
4. disc hemorrhage
What is the baring of blood vessels an early sign of?
superior or inferior rim thinning
What is a double angulation of a blood vessel called?
What is lamina cribosa exposure due to neuroretinal tissue loss called? 1. When is it seen? 2
1. laminar dots
2. glaucoma and high myopes
What are the different types of disc hemorrhages associated with glaucoma?
What are connections between two veins at the disc called?
Are changes seen in the disc or the retinal nerve fiber layer first?
What are the instruments to detect RNFL defects?
For the GDx testing, what is a quality level that is reliable?
For GDx testing, what is the numerical scale for determining asymmetry?
0-1 ; where 1 is exactly symmetric
For GDx testing, what are the associated NFI numerical values for each level: 1. low; 2. suspect; 3. high
For GDx testing, while looking at the nerve fiber thickness map what colors indicate thinning? 1. Thicker? 2
2. yellow and red
For GDx testing, while looking at the deviation map what colors indicate thinning? 1. Thicker? 2
1. yellow and red
For GDx testing, what does the TSNIT graph show?
patients retinal thickness compared to database average
When is GDx and OCT testing not good for glaucoma analysis?
significant parapapillary atrophy
For Stratus OCT testing, what does the RNFL quadrant show?
Sectioned off retina with green to red pies of circle filled in to represent areas of thinning
What is the test analysis that combines the colors of stratus OCT and the database of GDx?
What value is desired for HRT symmetry?
For HRT testing, what color represents sloping in the topography map of the ONH?
Which test is best for patients with significant parapapillary atrophy?
What is the normal range of IOPs?
Is the IOP higher or lower in the morning? 1. What is this called? 2
1. higher (~5)
2. diurnal curve
Do steroids increase or decrease IOP?