Visual Acuity Instrumentation

Which of the following is NOT under visual acuity instrumentation?

• phoropter

• trial lens

• chart

• autorefractor

Which of the following is TRUE regarding the typical instruments in this picture?

• It incorporates occluders, pinholes, Maddox rods, and phoropter

• Pairs of minus cylinders ranging from -0.12 to -6.00 D.

• Pairs of plus and minus spherical lenses ranging from ±0.12 to ±10.00 D.

• The diameter of additive vertex sets is 30mm

The picture shows a ___________.

• phoropter

• trial lens

• trial frame

• spectacle

Which of the following is TRUE regarding the disadvantage of using this instrument?

• not accurate

• expensive

• not suitable for children

• not suitable for geriatric patient

The picture shows a __________.

• phoropter

• chart projector

• Snellen chart

• Log MAR chart