Costs and utility estimates
| Description | Mean cost (£) | Source |
|---|---|---|
| Cost of monitoring | ||
| Secondary care attendance | ||
| IOP measurement only | 90 | Information Services Division, NHS Scotland (Table R044X Specialty group costs for consultant—ophthalmology—outpatients) |
| Full glaucoma assessment | 180 | Information Services Division, NHS Scotland (Table R044X Specialty group costs for consultant—ophthalmology—outpatients) |
| Primary care attendance | ||
| IOP measurement only | 10.35 | Assumption |
| Full glaucoma assessment | 20.7 | Department of Health. General Ophthalmic Services: NHS sight test fee |
| Cost of treatment | ||
| β blockers (£ per year of treatment) | 18.72 | BNF based on Timolol non-proprietary, 0.5%, 5 mL = £1.56. Assumed 1 bottle per month |
| Prostaglandin analogues (£ per year of treatment) | 149.76 | BNF based on Xalatan, 2.5 mL = £12.48. Assumed 1 bottle per month |
| PGA+β blockers (£ per year of treatment) | 171.84 | BNF based on Xalacom, 2.5 mL = £14.32. Assumed 1 bottle per month |
| Glaucoma surgery | 1479 | NHS reference costs 2008–2009 (HRG BZ18Z) |
| EuroQoL(EQ) EQ-5D-3LTM utility score | ||
| Health state | Mean score | Source/note |
|---|---|---|
| OHT | 0.8015 | Assumed equal to early glaucoma |
| Mild glaucoma | 0.8015 | Burr et al18 |
| Moderate glaucoma | 0.7471 | Burr et al18 |
| Severe glaucoma | 0.7133 | Burr et al18 |
| OAG visual impairment | 0.535 | Burr et al18 |
BNF, British National Formulary; IOP, intraocular pressure; NHS, National Health Service; OHT, ocular hypertension; OAG, open angle glaucoma; PGA, prostaglandin analogue.