Question

Difficulty: MediumPharmacological Therapies

A practical nurse (PN) is preparing to administer prescribed timolol eye drops to a client diagnosed with glaucoma. Assuming hand hygiene has been performed and clean gloves are applied, in what order should the PN perform the following steps?

  1. 1Cleanse the client's eyelid and eyelashes, wiping from the inner to the outer canthus.
  2. 2Instruct the client to tilt their head back slightly and look up at the ceiling.
  3. 3Gently pull down the client's lower eyelid using a thumb or index finger to expose the conjunctival sac.
  4. 4Instill the prescribed number of drops into the center of the lower conjunctival sac.
  5. 5Apply gentle pressure to the client's nasolacrimal duct for 30 to 60 seconds.

Answer

The correct sequence is to first cleanse the eye, position the client looking upward, expose the conjunctival sac, instill the medication into the sac, and finally apply pressure to the nasolacrimal duct.
The proper sequence for ophthalmic administration prioritizes infection control, client safety, and the prevention of systemic absorption. Cleansing the eye first prevents the introduction of debris. Proper positioning and exposing the conjunctival sac protect the highly sensitive cornea from injury. Instilling the medication into the sac ensures even distribution. Finally, applying pressure to the nasolacrimal duct is a critical safety step to prevent systemic effects of the medication.

Step-by-Step Solution

1
Cleanse the client's eyelid and eyelashes, wiping from the inner to the outer canthus.
Debris is removed from the eye area.
Prevents the introduction of external contaminants into the eye during administration.
2
Instruct the client to tilt their head back slightly and look up at the ceiling.
The cornea is rotated upward and away.
Reduces the risk of stimulating the blink reflex and protects the cornea from injury.
3
Gently pull down the client's lower eyelid using a thumb or index finger to expose the conjunctival sac.
The conjunctival sac is exposed.
Creates a pouch to safely receive the medication without dropping it directly onto the sensitive cornea.
4
Instill the prescribed number of drops into the center of the lower conjunctival sac.
Medication is delivered evenly without touching the eye.
Prevents injury to the cornea and maintains the sterility of the medication dropper.
5
Apply gentle pressure to the client's nasolacrimal duct for 30 to 60 seconds.
The nasolacrimal duct is occluded.
Prevents systemic absorption of the medication, which is critical when administering beta-blockers like timolol.

Key Concept

Safe Administration of Ophthalmic Medications
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