10 Questions
Which of the following devices is used to estimate the nature and amount of refractive error?
Pinhole test
What is the purpose of the pinhole test disc?
To estimate the nature and amount of refractive error
Which device consists of an aperture that limits the admission of light to approximately one meridian?
Stenopaic slit
What is the purpose of the stenopaic slit?
To determine the amount of the cylindrical state
Which device contains two small pinholes spaced to all within the average sized pupil?
Scheiner's disc
Which of the following devices is useful for determining the refractive status and consists of an aperture ranging from 0.5mm to 0.75mm in width and up to 15mm in length?
Stenopaic slit
What is the purpose of the pinhole test disc?
To distinguish between the causes of poor vision
Which device contains two small pinholes spaced to all within the average sized pupil?
Scheiner's disc
What is the purpose of the stenopaic slit?
To determine the amount of the cylindrical state
Which of the following devices is used to estimate the nature and amount of refractive error?
Scheiner's disc
Test your knowledge on trial cases and their accessories with this quiz! Learn about special devices used to determine refractive status and their practicality. Explore the merits and applications of the pinhole test and other useful tools.
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