Table 1 Comparison of ICHOM outcome measures for cataract surgery and reported measures in study hospitals
From: Mapping standard ophthalmic outcome sets to metrics currently reported in eight eye hospitals
Item | Proposed ICHOM Measure | Reported Measure in Study Hospitals | Number of Hospitals Reporting | Reported Value | |
|---|---|---|---|---|---|
Intraoperative | Complications | Capsule problems | Posterior capsule rupture | 6/8 | 0.64–2.11% |
Dropped nucleus or lens fragment into vitreous | Retained lens matter | 1/8 | 0.21% | ||
Other | Intraoperative complications | 1/8 | 1.87% | ||
Zonular dialysis | 1/8 | 0.11% | |||
Choroidal hemorrhage | 1/8 | 0.11% | |||
Postoperative | Visual acuity | Post-operative visual acuity | BCVA 20/40 or better at 4–6 weeks, all cases | 2/8 | 91% |
BCVA 20/40 or better at 4–6 weeks, excluding co pathology | 3/8 | 87–100% | |||
1–14 letters improvement ETDRS VA score | 1/8 | ≈ 52% | |||
≥ 15 letters improvement ETDRS VA score | 1/8 | ≈ 42% | |||
Refractive error | Post-operative refractive error | Final spherical equivalent within 1 D of target | 5/8 | 85–97% | |
Patient-reported visual function | Rasch-calibrated score from Catquest 9SF or other Rasch-calibrated PROM | NA | 0/8 | NA | |
Complications | Return to operating theater | Unplanned reoperation within 30 days of surgery | 4/8 | 1.1–1.52% | |
Endophthalmitis rate | Endophthalmitis rate | 6/8 | 0.0–0.07% | ||
Persistent corneal edema | NA | 0/8 | NA | ||
Other (any postoperative complication within 3 months requiring treatment or compromising outcome) | Postoperative complications | 1/8 | 0.36% | ||
Unplanned vitrectomy | 4/8 | 0.48–1.93% | |||
Iris trauma | 1/8 | 0.32% |