Table 1

Data showing the clinical results of visual acuity, colour vision, field analysis, and funduscopy from selected family members. The colour vision was tested for monocular and binocular tritan (blue-yellow), deutan (green), and protan (red) defects which were scored out of 10 plates

Snellen visual acuityCentrocaecal field defectTemporal pallor
IndividualAge (years)Age of onset (years)RELERELECity University binocular scoreRELE
Y = Yes; N = No. *Classified as affected from clinical tests alone.
I:1*736/186/18NNTritanYY
II:3*50146/126/18YYTritanYY
II:5*49206/126/36YYTritanYY
II:7486/66/6NNNormalNN
II:8506/66/6NNNormalNN
III:2*286/186/18YYGeneralisedYY
III:3*2376/366/18YYGeneralisedYY
III:4*19126/186/12YYNormalYY
III:7*65.56/126/9NNGeneralisedYY