Tropicamide

• Single use preservative-free eye drops 0.5%, 1% (£12.33 = 0.5% x 20 units (0.5ml))

Notes

1. Tropicamide activity is approximately 4-6 hours and makes it ideal for mydriasis prior to ophthalmic examination.

Antimuscarinics dilate the pupil and relax the ciliary muscle resulting in mydriasis and cycloplegia. They can rarely raise intra-ocular pressure (IOP) and they should be used with caution in those patients susceptible to angle closure, unless already treated with laser or surgery.

Atropine

• Eye drops 1% (£214.04 = 10ml)
• Single use preservative-free eye drop 1% (£17.13 = 20 units x 0.5ml)

Notes

1. Atropine has the longest activity, sometimes up to a week.

Cyclopentolate

• Eye drops 0.5%, 1% (£8.08 = 5ml)
• Single use preservative-free eye drop 0.5%, 1% (£12.87 = 20 units x 1% (0.5ml))

Notes

1. Cyclopentolate activity lasts for up to 24 hours and reduces ciliary spasm and pain.

Homatropine

• Eye drops preservative-free 1% (available from special order manufacturers)

Sympathomimetics

Phenylephrine

• Single use preservative-free eye drops 2.5%, 10% (£13.08 = 20 units x 2.5% (0.5ml))

Notes

1. Used for mydriasis in diagnostic procedures and prevention of posterior synechiae. Higher doses give little additional benefit and may cause cardiovascular side effects.