Table 2.

Clinical details

Observer	Age (y)	Sex	Condition	Eye	Refractive error	Letter acuity (Snellen)
Strabismic (“stereoblind”)
DP	23	F	Alternating XT >25 Δ	R( NDE) L (DE)	+1.00 +1.00	20/16+1 20/12.5−1
AB	24	F	Alternating ET 9 Δ R hyT 8 Δ	R (NDE) L (DE)	−3.75 −6.25	20/20 20/20
LR	28	F	Alternating XT 5 Δ	R (NDE) L (DE)	−0.75 −4.00	20/20 20/20
GJ	25	M	R ET 5 Δ	R (NDE) L (DE)	+3.00 –0.25	20/40−1 20/16−1
Anisometropic (“stereoanomalous”)
GD	46	F	Anisometropia	R (DE) L (NDE)	+0.25 +3.75	20/12.5 20/50+2
Normal
SP	20	M	Normal	R L	−5.25 −5.0	20/16−2 20/16−2
OP	20	F	Normal	R L	−0.75 −1.25	20/16+1 20/12.5
AT	27	F	Normal	R L	−6.50 −6.25	20/20 20/20
DC	23	F	Normal	R L	Plano Plano	20/20 20/20
JY	20	F	Normal	R L	−1.25 −1.50	20/20 20/20

XT, exotropia; ET, esotropia; hyT, hypertropia; Δ, prism dioptres.