Applanation Tonometry/Glaucoma Flashcards
Thin, large diameter mires
Too far forward
Small, tiny mires
Too much force is applied
Mires are thick
Too much fluorescein
Mires are very thin
Not enough fluorescein
Full mires that are too far apart
Too far in.
At what points should you calibrate the applanation tonometer?
0, 20, 60
What is aqueous produced by?
Ciliary Body
What 2 things does the aqueous nourish?
Cornea and Lens
How does aqueous exit the eye?
Through the angle by flowing through the trabecular meshwork into the canal of schlemm and out through the body’s vascular system
Five categories of glaucoma
-Open Angle Glaucoma/Primary Open Angle Glaucoma
-Acute Angle Closure Glaucoma/Angle Closure Glaucoma/Narrow Angle Glaucoma
-Normal Angle Glaucoma
-Secondary Glaucoma
-Congenital Glaucoma
Normal range of pressure
10 - 21 mm og Hg
What 3 conditions must be present when diagnosing Glaucoma?
-Increased IOP
-Optic nerve damage
-Visual field loss/changes
The presence of increased IOP with out optic nerve damage and visual field loss/changes is defines as?
Ocular Hypertension
The thicker the cornea, the more the IOP reading must be adjusted….
Down
What is defined as the absence of increased IOP with optic nerve damage and visual field loss?
Normal tension glaucoma
