WHO guidelines to monitor the outcome of cataract surgery
| Postoperative acuity | Available correction (recommended) | Best correction (recommended) | 125 eyes 2–4 weeks after surgery (pinhole acuity) | 33 eyes ⩾6 months after surgery (uncorrected) |
| Good (6/6–6/18) | 80%+ | 90%+ | 37% | 55% |
| Borderline (<6/18–6/60) | 15%– | 5%– | 53% | 33% |
| Poor (<6/60) | 5%– | 5%– | 10% | 12% |