Ophthalmic Instruments and Procedures Flashcards
6 cards from real COA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Ophthalmic Instruments and Procedures flashcards as text
What is the primary function of the Goldmann applanation tonometer?
Answer: Measure intraocular pressure
The Goldmann applanation tonometer is considered the gold standard for measuring intraocular pressure.
Which instrument is used to measure corneal thickness (pachymetry)?
Answer: Pachymeter
A pachymeter measures corneal thickness, which affects IOP accuracy and refractive surgery candidacy.
The Humphrey Visual Field Analyzer performs which type of perimetry?
Answer: Static automated perimetry
The Humphrey Field Analyzer uses static automated perimetry, presenting stationary stimuli at varying intensities.
What is the function of a pupillometer in ophthalmic practice?
Answer: Measure the interpupillary distance
A pupillometer measures the pupillary distance (PD) to ensure optical centers of lenses align with visual axes.
Specular microscopy is used to evaluate which ocular structure?
Answer: Corneal endothelium
Specular microscopy images corneal endothelial cells to assess their density, size, and morphology.
OCT (Optical Coherence Tomography) in glaucoma management primarily measures:
Answer: Retinal nerve fiber layer thickness
OCT measures retinal nerve fiber layer thickness, enabling detection and monitoring of glaucomatous structural damage.