The Melbourne Acuity Screening Test (MAST).
The Melbourne Acuity Screening Test (MAST) is a vision screening technique which combines the features of a linear presentation, incorporating a crowding effect with a pass/fail test protocol. It is a simple, quick screening test which can be used for both literate and illiterate people. This paper reports on the preliminary results of a comparison of the pass/fail method with that of the measurement of threshold linear acuity. The evaluation consisted of four parts: (1) test-retest and reliability of the MAST and Sheridan Gardiner (SG) linear test; (2) concurrent validity of the MAST compared with the SG linear test; (3) a limited negative predictive study, and (4) a comparison of the time taken to perform the MAST versus the measurement of threshold acuity. The test-retest reliability for both tests was high. The agreement, determined by Cohenthorn s kappa, ranged between 0.71 and 0.79. The agreement between the MAST and the SG linear test was also high, ranging between 0.88 and 0.89. The negative predictive value was 100%. The positive predictive value was 85.7%. The MAST was also significantly quicker to perform, taking approximately half the time of the SG linear test.
Brown
S
S
La Trobe University School of Orthoptics Faculty of Health Sciences Australia Victoria, Bundoora, 3083,
Story
I
I
Criddle
L
L
Pitt
A
A
D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D014739:Victoria; D015351:Vision Screening / Q000379:methods*; D014787:Vision Tests; D014792:Visual Acuity / Q000502:physiology*