Efficacy, cost, convenience, and tolerability: |
IOP reduction efficacy for most | +++ | ++ – +++ | ++++ | + – ++ |
| 20–25% | 20–25% | 25–30% | 15–20% |
Cost | + | +++ | +++ | ++ |
Instillation frequency | 1–2 times daily | 2–3 times daily | 1 times daily | 2–3 times daily |
Topical tolerability | +++ | ++ | ++ | + – +++ |
Topical/local effects: |
Topical allergies | +/− | ++ | +/− | +/− |
Preservative free preparations available | Yes | No | No | No |
Conjunctival hyperaemia | +/− | + to ++ | + to +++ | +/− |
Hypertrichosis | – | – | + to ++++ | – |
Iris darkening | – | – | 0 to +++ | – |
Systemic effects: |
Bradyarrhythmias/hypotension | +++ | – | – | – |
Bronchoconstriction | +++ | – | – | – |
Elevated serum lipids | ++ | – | – | – |
Increased falls in the elderly | ++ | – | – | – |
Apnoea in infants | +/− | +++ | – | – |
Drowsiness/anergy/fatigue | + | + to +++ | – | +/− |
Dry mouth | – | + to +++ | – | – |
Uveitis/CMO | – | – | 0 to ++ | – |
Enhancement of herpetic keratopathy | – | – | 0 to ++ | – |
Corneal oedema | – | – | – | 0 to ++ |