The Cardiff Near Test - Specification

The Cardiff Near Test comprises two test cards and a matching card, each approximately 20 by 27 cm.

The matching card is white with the pictures drawn in black outline – they are therefore highly visible. The test cards have the grey background familiar in the Cardiff range of tests.

The first test card consists of 6 rows of vanishing optotype pictures in a LogMAR sequence calibrated for acuities of 1 (6/60, 20/200) to 0.5 (6/19, 20/93) for a viewing distance of 33cm (13 in). The second test card consists of eight rows calibrated for acuities of 0.4 (6/15, 20/50) to -0.3 (6/3, 20/10) The steps between lines are 0.1 LogMAR and all lines on both cards contain 3 pictures, each equal to 0.033 LogMAR, so that individual pictures can be scored.