Table 2

 Motor data for five outliers with poor stereoacuity on TNO testing

Age (years)Motor fusion range (prism dioptres)Convergence (cm)
Base out ⅓ mBase in⅓ mTotal⅓ mBase out 6 mBase in6 mTotal 6 m
57451863186246
714020602016366
714514594267
78401454204246
79162036206265
Mean37.217.254.416.46.823.26
Mean for other subjects aged 50 and over34.214.648.817.74.922.66.6