Survey of 560 medical students who are contact lens wearers. All results are in percentages
| *Actual complications reported by students. Blood vessel formation on the cornea (BV). Soft disposable (SDL), soft contact lens (SCL), rigid gas permeable (RGP), or hard contact lens (HGP). | |||
| Provision of information versus reported complications (%) | |||
| Risk | Verbal | Written | Complications* |
| Ulcer | 18 | 4 | 3 |
| BV | 22 | 4 | 8 |
| Scar | 21 | 4 | 4 |
| Ptosis | 4 | 3 | 1 |
| Reported awareness of risk of corneal ulceration | |||
| SDL | Aware | Unaware | |
| Greater | 18 | 17 | |
| Same | 41 | 18 | |
| Less | 41 | 65 | |
| SCL | Aware | Unaware | |
| Greater | 23 | 21 | |
| Same | 40 | 7 | |
| Less | 37 | 72 | |
| HGP | Aware | Unaware | |
| Greater | 40 | 29 | |
| Same | 2 | 0 | |
| Less | 58 | 71 | |
| Knowledge of risk of corneal ulcer versus adequacy of advice | |||
| All | Adequate advice | Inadequate advice | |
| SDL | 14 | 23 | 21 |
| SCL | 14 | 24 | 22 |
| RGP | 12 | 23 | 17 |
| Percentage (%) who would wear contact lens with knowledge of risks | |||
| Yes | 87 | ||
| No | 8 | ||









