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TONOMETRY (EXAM 1) 2024 QUESTIONS WITH COMPLETE SOLUTIONS!!
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TONOMETRY (EXAM 1) 2024 QUESTIONS WITH COMPLETE SOLUTIONS!!
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TONOMETRY (EXAM 1)2024 QUESTIONS WITH
COMPLETE
SOLUTIONS!!
TONOMETRY
Evatee 10/13/24 TONOMETRY
,TONOMETRY (EXAM 1) 2024 QUESTIONS
WITH COMPLETE SOLUTIONS!!
Tonometry is the ______________ estimation of intraocular pressure by
measuring resistance of the eye to indentation by an applied force. Answer -
Indirect
What is the equation for IOP? Answer - IOP = F / C + PV
F = aqueous formation
C = Outflow rate
PV = Episcleral venous pressure
Typically the production of aqueous is _________ microliters/minute and
drainage of aqueous is ______ microliters/minute. Answer - 2.5
2.5
IOP is dependent on what factors? Answer - - Aqueous humor PRODUCTION
- CIRCULATION of aqueous humor
, - EGRESS of the aqueous humor from the eye
- VOLUME of the vitreous humor
- Elasticity of the cornea and sclera (RIGIDITY)
~ effects the measurement of IOP, not actually IOP
When is tonometry indicated? Answer - - CEE
- Screening guidelines (increased IOP = risk for glaucoma)
- Ocular hypertension
- Glaucoma workup
- Glaucoma management
- Monitor medication effects
When is tonometry contraindicated? Answer - - Red eye of INFECTIOUS
ORIGIN (contaminate tools)
***Some exceptions to this (ie: uveitis)
- Severely traumatized cornea
~ need intact cornea
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