Patient | 1 | 2 | 3 | 4 | 5 |
At presentation: | |||||
Age (years) | 1 1/2 | 3 3/4 | 1 3/4 | 2 1/2 | 3 |
Acuity | |||||
Right | <6/60 | 6/12 | 6/18 | 6/12 | 6/18 |
Left | 6/12 | 2/60 | <6/60 | 6/60 | 2/60 |
Deviation (prism dioptres) | |||||
Near | 30 ET | 15 ET | 35 ET | 35 ET | 50 ET |
Distance | NA | 20 ET | NA | NA | NA |
Refraction: spherical equivalent (dioptres) | |||||
Right | 8.25 | 8.75 | 4.75 | 4 | 7 |
Left | 5.75 | 10.75 | 5.5 | 4.75 | 7.5 |
Stereoacuity | Negative | Negative | Negative | Negative | Negative |
Motor fusion: able to overcome 20 dioptre base out prism | Yes | Yes | Yes | Yes | Yes |
Prior to exodeviation: | |||||
Acuity | |||||
Right | 6/12 | 6/6 | 6/12 | 6/6 | 6/9 |
Left | 6/6 | 6/9 | 6/12 | 6/6 | 6/12 |
Refraction: spherical equivalent (dioptres) | |||||
Right | 7 | 8.75 | 5.75 | 4.5 | 8.5 |
Left | 6 | 9.5 | 6 | 5.25 | 9 |
Deviation with glasses (prism dioptres) | |||||
Near | 16 ET | 4 ET | 0 | 4 ET | 6 ET |
Distance | 16 ET | 6 ET | 0 | 0 | 4 ET |
Onset of exotropia: | |||||
Age (years) | 4 | 5 1/4 | 3 | 4 | 6 |
Acuity | |||||
Right | 6/12 | 6/6 | 6/12 | 6/6 | 6/5 |
Left | 6/6 | 6/9 | 6/12 | 6/6 | 6/9 |
Refraction: spherical equivalent (dioptres) | |||||
Right | 7 | 8.75 | 5.75 | 4.5 | 8.5 |
Left | 6.25 | 9.5 | 6 | 5.25 | 9 |
Deviation with glasses (prism dioptres) | |||||
Near | 8 EX | 2 EX | 16 EX | 10 EX | 2 EX |
Distance | 4 EX | 18 EX | 18 EX | 14 EX | 20 EX |
Treatment: | |||||
Size of reduction in lens power (dioptres) | 0.5 | 1 | 1 | 1.5 | 1.5 |
Outcome: | MicroEX | MicroET | MicroEX | MicroET | MicroEX |
ET = esotropia; EX = exotropia; NA = no data available.