- horizontally.
Phoropters are made with
either plus or
minus cylinders. Traditionally,
ophthalmologists and
orthoptists use plus
cylinder phoropters and optometrists...
-
began making phoropters of
their own design, as well as
copying American models.
Wikimedia Commons has
media related to Optometer.
Phoropter Ophthalmic...
- The
prescription is
typically determined during a refraction,
using a
phoropter and
asking the
patient which of two
lenses is better, or by an automated...
- off. At the optometrist,
Heidi angrily confronts Larry and
slams the
phoropter against his eyes. Larry, with
blurry vision again, rear-ends a
woman with...
-
cylinders in a
phoropter or
trial frame may be used to
subjectively refine those measurements. An
alternative technique with the
phoropter requires the...
- refractor-objective refraction; or
trial lenses in a
trial frame or a
phoropter to
obtain a
subjective examination.
Ancillary tests for
abnormal structures...
-
refraction (also
known as refractometry) is a
clinical test in
which a
phoropter may be used by the
appropriate eye care
professional to
determine the...
- the patient's eye with the same
effective power that it did
through the
phoropter or
trial frame.
Vertex distance is
important when
converting between contact...
-
subjective refraction tests. Here,
lenses are
switched in and out of a
phoropter and the
patient is
asked "which
looks better"
while looking at a chart...
- of the
trial frame allow holding lenses in
correct position.
Although phoropters,
which contains lenses allow a
quicker refraction, the
trial frame help...
