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The level of vision reported by the questionnaire respondents
| Level of vision |
|---|
| 3% with bare to no light perception |
| 6% could see some light and objects but said it was very difficult to read |
| 19% could read with magnification |
| 29% could read most things without magnification |
| 13% could still read with some difficulty but had lost some central and/or peripheral vision |
| 30% had 6/6 central vision with correction but had lost some peripheral vision |
