-
chart used to
measure visual acuity comprising lines of
optotypes in
ranges of sizes.
Optotypes are the
letters or
symbols shown on an eye chart. Eye charts...
- an
acuity chart are
formally known as "
optotypes". In the case of the
traditional Snellen chart, the
optotypes have the
appearance of
block letters, and...
-
acuity would discern the same
optotype. Thus, 6/12
means that a
person with 6/6
vision would discern the same
optotype from 12
metres away (i.e. at twice...
- as a
Landolt ring,
Landolt broken ring, or ****anese
vision test, is an
optotype: a
standardized symbol used for
testing vision. It was
developed by the...
-
value of the best line read – 0.02 X (number of
optotypes read)
Given that each line has 5
optotypes, the
equivalent formula is:
LogMAR VA =
LogMAR value...
- The most
significant innovation was Snellen's use of what he
called optotypes,
specially designed characters generated on a 5x5 grid,
rather than using...
-
against the
standardized Landolt C
vision test symbol. The
Landolt C is an
optotype that is used
throughout most of the
world as the
standardized symbol for...
-
resolution of 2
arcminutes per line pair,
equivalent to a 1
arcminute gap in an
optotype,
corresponds to 20/20 (normal vision) in humans. However, in the compound...
-
systematic data
collection in
physical sciences and
engineering Landolt C,
optotype developed by
ophthalmologist Edmund Landolt Landolt & Cie,
Swiss bank 15072...
- The
Jaeger chart is an eye
chart used in
testing near
vision acuity. It is a card on
which paragraphs of text are printed, with the text
sizes increasing...
