11.5 Mydriatics and cycloplegics

Tropicamide
  • Minims® single use eye drops 0.5%, 1% (£10.75 = 0.5% 20 units)

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% (£111.13 = 10ml)
  • Minims® single use eye drop 1% (£15.10 = 20 units)

Notes

  1. Atropine has the longest activity, sometimes up to a week.
Cyclopentolate
  • Eye drops 0.5%, 1% (£6.73)
  • Minims® single use eye drop 0.5%, 1% (£10.97 = 20 units)

Notes

  1. Cyclopentolate activity lasts for up to 24 hours and reduces ciliary spasm and pain.
Homatropine
  • Eye drops 1% (available from special order manufacturers)

Sympathomimetics

Phenylephrine
  • Minims® single use eye drops 2.5%, 10% (£11.41 = 20 units)

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.

 

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