Eye Drop Instillation: Nursing Procedure

Instilling eye drops treats ocular conditions and protects eye health, and it takes precision and sterile technique to get the medication where it needs to go without contaminating the eye or causing discomfort.

Eye Drop Instillation

Eye drop instillation delivers a sterile ophthalmic medication directly into the eye to treat infections, glaucoma, inflammation, and dryness. You place the prescribed number of drops into the conjunctival sac so the medication absorbs and works. Proper technique gets the drug to the target, avoids contamination, and minimizes discomfort or injury.

Purpose and Indications

Treat eye disorders.

• Glaucoma. Drops reduce intraocular pressure to prevent optic nerve damage and vision loss. Miotic drops constrict the pupil, which lowers pressure.
• Uveitis. Anti-inflammatory drops reduce inflammation of the uvea, easing pain and preventing tissue damage.
• Allergic reactions. Antihistamine and anti-inflammatory drops relieve itching, redness, and swelling.
• Infections. Antibiotic or antiviral drops target the bacteria or viruses causing the infection and prevent spread.
• Dry eye syndrome. Lubricating drops (artificial tears) relieve chronic dryness and irritation.

Anesthetize the eye. Anesthetic drops numb the eye for surgery and for diagnostic procedures like tonometry, where intraocular pressure must be measured without discomfort.

Support eye examinations. Mydriatic (dilatory) drops expand the pupil so the retina can be examined for macular degeneration, retinal detachment, and other retinal disease.

Diagnostic aid. Fluorescein and other dyes highlight corneal abnormalities like abrasions and dry eye syndrome. Dyes given intravenously visualize retinal blood vessels in fluorescein angiography, aiding diagnosis of diabetic retinopathy.

Emergency treatment. Anesthetic and lubricating drops ease foreign body removal by numbing the area and reducing friction. Irrigating drops flush harmful chemicals from the eye in chemical burns, starting decontamination immediately.

Contraindications

• Medication allergies. Known allergies to a drop or its components can cause reactions from mild irritation to anaphylaxis. Review the history first.
• Corneal abrasions or ulcers. Preservative-containing drops can worsen these and delay healing; consider preservative-free formulations.
• Acute angle-closure glaucoma. Mydriatic drops can raise intraocular pressure and worsen it, risking vision loss. Avoid them.
• Recent ocular surgery. The eye is vulnerable; use only what the surgeon prescribes.
• Severe conjunctivitis or blepharitis. Some drops, especially steroids, suppress the immune response and worsen the infection.
• Compromised ocular surface. Severe dry eye or chemical burns may need specialized lubricating drops or medical intervention instead of standard drops.
• Pregnancy and lactation. Some drops absorb systemically and may risk the fetus or infant; evaluate safety and consult an obstetrician if needed.
• Systemic conditions. Cardiovascular disease or uncontrolled diabetes can react badly to certain drops (e.g., beta-blockers used in glaucoma). Take a thorough history and consult the primary physician.

Cautions

Solutions and ointments going into the eye must be sterile, with careful medical asepsis.

• Infection prevention. The eye is sensitive and vulnerable. Bacteria, fungi, or viruses from contaminated drops can cause conjunctivitis, keratitis, or endophthalmitis, leading to pain, vision loss, or blindness.
• Treatment efficacy. Contaminants can interact with active ingredients and reduce effectiveness, so sterility preserves the medication's integrity.
• Aseptic technique. Hand hygiene before and after, sterile applicators, no contact between the dropper or tube and any surface (including the eye), and a tightly closed container between uses.
• Patient safety. Sterile technique prevents introducing pathogens. Teach patients proper application and the importance of sterility for safe self-administration at home.
• Regulatory standards. Facilities must follow infection control standards for sterile solutions and aseptic technique to meet legal and accreditation requirements.

Equipment

• Sterile medication solution, the active treatment, which must be sterile to avoid introducing contaminants.
• Small gauze squares or cotton balls to clean debris and discharge from the lids and lashes, and to blot excess solution.
• Gloves to maintain asepsis and prevent cross-contamination.
• Applicators or droppers (dropper bottles or single-use ampules) for accurate, consistent dosing, sterile and made for ophthalmic use.
• Eye occluder or patch, sometimes used afterward to prevent immediate drainage and maximize absorption.

Procedure for Eye Drop Instillation

1. Check the patient's name against their ID or records to prevent medication errors.

2. Check the physician's directives for the correct medication, dose, and frequency.

3. Wash your hands before instilling, to maintain asepsis.

4. Cleanse the eyelids and lashes with cotton balls or gauze pledgets moistened with normal saline to remove debris, oil, and bacteria.

5. Use each cotton ball or pledget for one stroke, moving from the inner to the outer canthus, to minimize cross-contamination and avoid pushing contaminants into the tear ducts.

6. Position the head: tilt it back slightly if sitting, or rest it on a pillow if lying down, to align the eye and prevent spillage.

7. Fill the dropper, keeping medication from flowing back into the bulb, to maintain accurate dosing and sterility.

8. Pull the lower lid down gently with your forefinger to create space in the lower conjunctival sac.

9. Have the patient look upward to expose the lower sac and reduce blinking.

10. Hold the dropper close to the eye without touching the lids for accuracy and to prevent contamination.

11. Drop the prescribed number into the lower conjunctival sac, not onto the cornea, for optimal absorption and to avoid irritation.

12. Release the lower lid, and have the patient close the eyes slowly and move the eye without squeezing or rubbing, so the medication spreads evenly without being displaced.

13. Wipe off excess solution with gauze or cotton balls to reduce dripping and irritation.

14. Dispose of used materials in the appropriate receptacle.

15. Repeat if necessary, waiting a few minutes between drops to prevent washout.

16. Wash your hands afterward, even if gloved, to remove residual medication or secretions and prevent cross-contamination.

17. Document the medication, dose, route, and any patient response or adverse reaction.

Charting

• Time of administration, for a chronological record of doses and intervals.
• Type, strength, and dosage, to prevent medication errors.
• Which eye received the medication (right, left, or both), to ensure precise administration and side-effect tracking.
• Patient instructions and observations, including post-administration care, side effects to watch for, and the patient's response.
• Healthcare provider signatures and timestamps, for accountability and legal validity.
• Updates to the MAR and care plans, so the team has consistent, current information.