Adult ECAT protocol

Ocular presentations

A10.2 Published: December 2023 Printed on 19 May 2024

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Any person, aged 16 years and over, presenting with ocular injury or eye-related symptoms. Excludes patients who present with acute vision loss.

This protocol is intended to be used by registered and enrolled nurses within their scope of practice and as outlined in The Use of Emergency Care Assessment and Treatment Protocols (PD2024_011). Sections marked triangle or diamond indicate the need for additional prerequisite education prior to use. Check the medication table for dose adjustments and links to relevant reference texts.

History prompts, signs and symptoms

These are not exhaustive lists. Maintain an open mind and be aware of cognitive bias.

History prompts

  • Presenting complaint
  • Onset of symptoms
  • Mechanism of injury, e.g. blunt, penetrating, or chemical injury
  • Bilateral or unilateral
  • Pain assessment – PQRST
  • Pre-hospital treatment
  • Past admissions
  • Medical and surgical history
  • Ocular history, e.g. corrective lenses or glasses, previous eye surgery and ocular conditions, such as glaucoma
  • Current medications
  • Known allergies

Signs and symptoms

  • Headache
  • Photophobia
  • Blurred vision
  • Diplopia
  • Flashes, floaters, and visual field defects
  • Foreign bodies, e.g. glass, dirt, organic or metal
  • Redness
  • Tearing
  • Conjunctival inflammation
  • Inflammation of the eyelid
  • Discharge from the eye or eyelids
  • Nausea
  • Pain

Red flags

Recognise: identify indicators of actual or potential clinical severity and risk of deterioration.

Respond: carefully consider alternative ECAT protocol. Escalate as per clinical reasoning and local CERS protocol, and continue treatment.

Historical

  • Diabetes
  • Exposure to snow, water glare or intense UV light in the past 24 hours
  • No protective eyewear
  • Welding in the past 24 hours
  • Recent eye surgery

Clinical

  • Penetrating foreign body in the eye
  • Loss of visual acuity
  • Chemical exposure or burn injury to the eye
  • Alkali chemical injury
  • Reduced eye movement and sensation around the eye associated with trauma
  • Full-thickness lid laceration
  • Preceding trauma
  • Hyphema – blood in anterior chamber visible in iris
  • Hypopyon – pus in anterior chamber visible in iris
  • A rust ring on inspection of the eye
  • Suspected fractures of the orbit and orbital floor

Remember adult at risk: patient or carer concern, frailty, multiple comorbidities or unplanned return.

Clinical assessment and specified intervention (A to G)

If the patient has any Yellow or Red Zone observations or additional criteria (as per the relevant NSW Standard Emergency Observation Chart), refer and escalate as per local CERS protocol and continue treatment.

Position

AssessmentIntervention

General appearance/first impressions

Position of comfort

Supine if penetrating injury

Airway

AssessmentIntervention

Patency of airway

Maintain airway patency

Consider airway opening manoeuvres and positioning

Breathing

AssessmentIntervention

Respiratory rate and effort

Auscultate chest (breath sounds)

Oxygen saturation (SpO2)

Assist ventilation as clinically indicated

Consider oxygen if dyspnoeic, titrate oxygen to maintain SpO2 over 93%

Patients at risk of hypercapnia, maintain SpO2 at 88–92%

Circulation

AssessmentIntervention

Perfusion (capillary refill, skin warmth and colour)

Pulse

Blood pressure

Cardiac rhythm

Assess circulation

Attach cardiac monitor and complete 12 lead ECG if BP/HR are within the Yellow or Red Zones, or where clinically relevant, e.g. irregular pulse, palpitations, syncope, shock, respiratory compromise, cardiac history or clinical concern

IVC and/or pathology

Insert IV cannula, if trained and clinically indicated

If unable to obtain IV access, consider intraosseous, if trained

See pathology section

Signs of shock:

tachycardia and CRT 3 seconds and over

and/or abnormal skin perfusion

and/or hypotension

If signs of shock present and/or SBP less than 90 mmHg, give 250 mL of sodium chloride 0.9% IV/intraosseous bolus

Repeat every 10 minutes (up to 1000 mL) until SBP over 90 mmHg or signs of shock have resolved

Disability

AssessmentIntervention

GCS, pupillary response and limb strength

Obtain baseline and repeat assessment, as clinically indicated

Pain
Assess pain. If indicated, give early analgesia as per analgesia section then resume A to G assessment

Exposure

AssessmentIntervention
Temperature

Measure temperature

Skin inspection, including posterior surfaces

Check and document any abnormalities

Fluids

AssessmentIntervention
Hydration status: last ate, drank, bowels opened, passed urine or vomited Commence fluid balance chart, as required
NBM

Consider clear fluids or NBM based on red flags and clinical severity

Glucose

AssessmentIntervention

BGL

Measure BGL, if clinically indicated

If less than 4 mmol/L, consider hypoglycaemia protocol

Repeat and document assessment and observations to monitor responses to interventions, identify developing trends and clinical deterioration. Escalate care as required according to the local CERS protocol.

Focused assessment

Complete ocular focused assessment.

Consider neurological focused assessment, if history of blunt trauma or head injury.

Precautions and notes

  • Visual acuity (VA) is required to be assessed in all patients with ocular injuries or related symptoms.  It is an important parameter and is of medico-legal importance. A VA may be done after initiating treatment.
  • Always compare both eyes.
  • Treatment is directed at preventing further injury or vision loss. A visual acuity of 6/6 does not exclude a serious eye injury.
  • Metallic foreign bodies:
    • If suspected, do not irrigate the eyes.
    • If not correctly removed,  may lead to the formation of rust ring, corneal scarring, infection and retinal damage.
  • Advise patient not to blow nose as this increases the risk of ocular damage.

Interventions and diagnostics

Specific treatment

All patients

  • Check visual acuity, including Snellen chart, finger count, light perception assessment and pupillary response.
  • Test both eyes separately.
  • Swinging torch test for Relative Afferent Pupillary Defects (RAPD).
  • Where available, document findings using NSW Health Eye Emergencies Form (SMR 040.200) or eye examination chart.

Acute red eye

  • Provide symptomatic relief.

Blunt injury

  • Apply an eye shield where possible.
  • Do not apply an eye pad or pressure to the eye.
  • For black eye, provide supportive care, including rest, ice and analgesia.
  • Check for bruising behind the ears, clear fluid leakage from ears or nose. If present escalate as per local CERS protocol.
  • Check for presence of hyphema (blood fluid level in anterior chamber visible in the iris). Hyphema needs urgent ophthalmology referral or phone consult.
  • If blowout fracture is suspected, instruct patient not to blow their nose.

Chemical exposures

  • For any chemical injury irrigation should be started immediately without checking the pH.
  • Ensure the face and other exposed areas are thoroughly washed with water.
  • Instil one drop of oxybuprocaine 0.4% or tetracaine (amethocaine) hydrochloride 0.5% or 1% to the affected eye. Block lacrimal sac at medial canthus during and for one minute after drop.
  • Irrigate eyes with copious amounts of sodium chloride 0.9% attached to an IV giving set for at least 30 minutes.
  • Ask the patient to look left, right, up and down while irrigating.
  • If debris or foreign body present: evert the eyelid and clear away any debris or foreign body with a moistened cotton bud.
  • Continue manual irrigation or carefully insert a Morgan Lens, if available, to provide continuous irrigation with the flow regulator fully open.
  • Check patient’s pain levels every 10 minutes and repeat oxybuprocaine 0.4% or tetracaine (amethocaine) hydrochloride 0.5% or 1% as required, maximum 3 doses.
  • Measure pH 5–10 minutes after the first 1000 mL, then measure from the conjunctival fornix using universal indicator paper in both eyes and repeat post irrigation.
  • Continue irrigating until pH is within the range of 6.5–8.5, using specialised pH universal indicator paper.
  • Assess visual acuity after irrigation.

Corneal foreign bodies

  • Instil one drop of oxybuprocaine 0.4% or tetracaine (amethocaine) hydrochloride 0.5% or 1% to affected eye. Block lacrimal sac at medial canthus during and for one minute after drop.
  • If blue light is available, consider inspection and instil one drop of fluorescein 1% or 2% stain into the affected eye, once only.
  • If a small amount of superficial dust or organic matter is present, gently remove with a cotton bud moistened with sodium chloride 0.9%. Do not apply pressure to the eye. Use a flicking or sweeping motion only.
  • Ensure the eyelids have been everted to check for any remaining foreign bodies.
  • Consider irrigating eyes with sodium chloride 0.9% attached to an IV giving set after removal of foreign body.

Flash burns (UV keratitis)

  • Instil one drop of oxybuprocaine 0.4% or tetracaine (amethocaine) hydrochloride 0.5% or 1% to affected eye once only. Block lacrimal sac at medial canthus during and for one minute after drop.

Ocular burn

  • Instil one drop of oxybuprocaine 0.4% or tetracaine (amethocaine) hydrochloride 0.5% or 1% to affected eyes. Block lacrimal sac at medial canthus during and for one minute after drop.
  • Drops may need to be re-instilled every 10 minutes during irrigation, maximum 3 doses.
  • Irrigate the eye with sodium chloride 0.9% attached to giving set.
  • Irrigate until pH is neutral by using appropriate pH indicator paper.
  • Severe burns may require more than 30 minutes of irrigation.

Penetrating injury

  • Do not touch the eye. Do not remove foreign body.
  • Stabilise foreign body.
  • Apply an eye shield where possible.
  • Do not apply an eye pad or pressure to the eye.
  • Do not instil drops or ointment until ophthalmology consultation.
  • Elevate the head of the bed to 45° and limit activity.
  • All patients with penetrating trauma require urgent referral to a facility with ophthalmology services and expedited ophthalmology review.
  • Assess for other injuries.
  • Assess patient’s tetanus immunisation status and give tetanus booster if clinically indicated, as per the tetanus section.

Suspected retinal detachment, vitreous injury or hyphema

  • Urgent ophthalmic assessment required.
  • A protective eye shield can be placed over the affected eye to avoid further injury.
  • Record if patient reports flashes, floaters or visual field defects.
  • Patient to be confined to bed rest if suspected retinal detachment.

Analgesia

If pain score 1–6 (mild–moderate), give:

  • paracetamol 1000 mg orally once only
  • and/or ibuprofen 400 mg orally once only.

If severe pain present, give analgesia and escalate as per local CERS protocol.


Nausea and/or vomiting

If nausea and/or vomiting is present, give:

  • metoclopramide 10 mg orally or IV/IM once only (over 20 years only)
  • or ondansetron 4 mg orally or IV/IM. If symptoms persist after 60 minutes, repeat once, maximum dose 8 mg
  • or prochlorperazine 5 mg orally once only or 12.5 mg IV/IM once only

Choice of antiemetic should be determined by cause of symptoms.


Tetanus

If patient has a ‘tetanus-prone’ wound, consider giving a tetanus booster vaccine.

  • Diphtheria and tetanus (ADT booster) vaccine should be given as per the Australian Immunisation Handbook Guide for tetanus prophylaxis in wound management.
  • If ADT booster is not available then diphtheria/tetanus/pertussis (Boostrix) vaccine can be used.
  • If no documented history of a primary vaccination course (3 doses) with a tetanus toxoid-containing vaccine: refer to medical or nurse practitioner or nurse immuniser.
  • If pregnant or breastfeeding: dTpa vaccine (diphtheria-tetanus-acellular pertussis) is recommended. Refer to medical or nurse practitioner or nurse immuniser.

Radiology

Not usually indicated. If there is concern for urgent radiology, escalate care as per local CERS protocol.


Pathology

Not usually indicated. If there is concern for urgent pathology, escalate care as per local CERS protocol.

Medications

The shaded sections in this protocol are only to be used by registered nurses who have completed the required education.

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Drug Dose Route Frequency

0.5 mL

IM

Once only

OR

0.5 mL

IM

Where ADT booster not available

Once only

1 drop into affected eyes

Topical

Once only

Ibuprofen H, R

400 mg

Oral

Pain score 1–10

Once only

Metoclopramide R

Over 20 years:
10 mg

Oral/IV/IM

Once only

Ondansetron

4 mg

Maximum dose 8 mg

Oral/IV/IM

Repeat once if required after 60 minutes

Instil 1 drop into affected eyes

Topical

For local anaesthesia:
Once only

For local anaesthesia during irrigation:
Every 10 minutes as required, maximum 3 doses

Oxygen

2–15 L/min, device dependent

Inhalation

Continuous

Paracetamol H

1000 mg

Oral

Pain score 1–10

Once only

5 mg

Oral

Once only

OR

12.5 mg

IV/IM

Once only

Sodium chloride 0.9%

250 mL

Maximum dose 1000 mL

IV/intraosseous

Bolus

Repeat every 10 minutes (up to 1000 mL) until SBP over 90 mmHg or signs of shock have resolved

Instil 1 drop into affected eyes

Topical

For local anaesthesia:
Once only

For local anaesthesia during irrigation:
Every 10 minutes as required, maximum 3 doses

Medications with contraindications or requiring dose adjustment are marked:

  • H for patients with known hepatic impairment
  • R for patients with known renal impairment.

Escalate to medical or nurse practitioner.

References

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Evidence informed

Information was drawn from evidence-based guidelines and a review of latest available research. For more information, see the development process.

Collaboration

This protocol was developed by the ECAT Working Group, led by the Agency for Clinical Innovation. The group involved expert medical, nursing and allied health representatives from local health districts across NSW. Consensus was reached on all recommendations included within this protocol.

Currency Due for review: Jan 2026. Based on a regular review cycle.
Feedback Email ACI-ECIs@health.nsw.gov.au

Accessed from the Emergency Care Institute website at https://aci.health.nsw.gov.au/ecat/adult/ocular

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