Journal of Ophthalmology / 2009 / Article / Tab 1

Clinical Study

Contribution of a Real Depth Distance Stereoacuity Test to Clinical Management

Table 1

Depth discrimination thresholds of control subjects using the near stereoacuity tests, Frisby, TNO, and the FD2 at 1 m, 3 m, and 6 m. Combined (CT), monocular (MT), and binocular (BT) depth discrimination thresholds. Mean, standard deviation (SD) and median in logarithm of arc seconds. Range of test and subjects in arc seconds. Not measurable (NM).

TestMean CT (SD) Median (Log seconds)Range of CT (seconds)Measurable range of stereoacuity test (seconds)Mean BT (SD) Median (Log seconds)Mean MT (SD) Median (Log seconds)

TNO1.75 (040) 1.7815–198015–19801.75 (0.40) 1.78NM
Frisby1.74 (0.34) 1.8320–17020–6001.74 (0.34) 1.83NM
FD2 6M1.14 (0.28) 1.185–505–501.14 (0.28) 1.18NM
FD2 3M1.45 (0.23) 1.3020–160140–2001.47 (0.25) 1.302.34 (0.2) 2.30
FD2 1M2.28 (0.39) 2.26182–558952–20422.32 (0.10) 2.313.13 (0.15) 3.14

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