If you work in construction, manufacturing, or any trade that involves cutting, grinding, or drilling, there is a good chance you have felt it before. A sudden sharp sensation in the eye. A gritty, burning feeling that does not go away no matter how much you blink. The uncomfortable certainty that something is in there.
The Cumberland Council area, which includes Auburn, Granville, Berala, Merrylands, Lidcombe, and Silverwater, is home to one of the largest concentrations of industrial workers in Western Sydney. The Silverwater industrial precinct alone employs thousands of tradespeople, and eye injuries from metal fragments, grinding sparks, and workplace debris are among the most common presentations we see at Prime Optometrists Auburn.
This article explains what happens when a foreign body enters the eye, why attempting to remove it yourself is dangerous, and what professional removal at our Auburn clinic involves. If you are reading this because something is in your eye right now, call us on (02) 9761 0005 or attend immediately.
Who Is Most at Risk?
Eye foreign bodies are not limited to major accidents. They are most commonly caused by everyday occupational tasks carried out without adequate eye protection:
- Angle grinding and cutting metal: Produces tiny high-velocity fragments that can embed in the cornea before you realise what has happened
- Drilling and hammering: Sends chips of concrete, brick, and metal in unpredictable directions
- Welding: Creates metallic sparks and UV-related injuries (arc eye)
- Woodworking and carpentry: Fine sawdust and splinters can penetrate or scratch the corneal surface
- Landscaping and roofing: Debris, seeds, and particles are common in outdoor trades
- Storms and high winds: Dust, grit, sand, leaf matter, and small insects can be driven into the eye at speed during windy conditions or after storms
We also regularly see patients from the general public after windy or dusty days, particularly following storms in the Western Sydney basin. You do not need to be on a worksite to get something in your eye.
Symptoms of a Foreign Body in the Eye
The symptoms vary depending on the size, type, and location of the foreign body. Common presentations include:
- Sudden sharp pain at the moment of impact, followed by a persistent burning or scratchy sensation
- Excessive tearing as the eye attempts to flush the object naturally
- Redness and visible irritation
- Sensitivity to light (photophobia)
- Blurred vision in the affected eye
- The sensation that something is still in the eye even after rinsing, often called the foreign body sensation
- Difficulty keeping the eye open due to reflex blinking and discomfort
If you experience sudden loss of vision, severe pain, or fluid leaking from the eye, go directly to your nearest emergency department. These may indicate a penetrating eye injury, which is a medical emergency requiring hospital treatment.
Why Rust Rings Are a Serious Complication
This is the part most people do not know until it is too late. When a fragment of iron or steel lodges in the cornea and is not removed within a few hours, it begins to react chemically with the natural moisture in your tears. This oxidation process forms a rust ring, a circle of iron oxide that deposits into the tissue surrounding the foreign body.
Rust rings do not flush out with eye drops or saline. They require removal using a specialised instrument called a corneal burr, which gently abrades the stained tissue under magnification. The longer a rust ring is left in place, the deeper it penetrates into the corneal stroma, and the more difficult and tissue-damaging the removal becomes.
Rust rings that are not treated properly can lead to:
- Persistent corneal inflammation and scarring
- Reduced visual clarity in the affected area
- Increased risk of secondary infection
- Prolonged healing time and repeated clinic visits
This is the primary reason why time matters with metallic foreign bodies. A fragment removed within the first few hours is far less likely to leave a rust ring than one left in overnight.
“Metal foreign bodies are the most common eye emergency I see from the local industrial workforce. The key message is simple: do not wait. The longer a metal fragment stays in the eye, the harder it is to remove cleanly. I have seen rust rings form in as little as four hours.”
, Dr Zobaida Tahiri, MOptom (UNSW), Optometrist Auburn
What NOT to Do
We understand the instinct to try to sort it yourself. But the following actions cause more harm than good and are seen regularly in patients who present to us after attempting self-treatment:
- Do not rub the eye. Rubbing drives the fragment deeper into the corneal tissue and can convert a superficial foreign body into a penetrating one
- Do not use tweezers, cotton buds, or fingernails. The cornea is a precision optical surface. Any attempt to manipulate it without magnification, sterile instruments, and anaesthetic risks permanent scarring or perforation
- Do not use eye drops from the medicine cabinet. Over-the-counter redness relief drops do nothing to remove the foreign body and may mask symptoms, delaying proper treatment
- Do not wait to see if it resolves. If the foreign body sensation persists after a few minutes of gentle rinsing, the object is embedded and will not come out on its own
The one thing you can do at home before attending the clinic is gently irrigate the eye with sterile saline or clean running water if the object is loose and on the surface. Do not force it. If it does not flush out immediately, stop and seek professional help.
Foreign Body Removal at Prime Optometrists Auburn
Dr Zobaida Tahiri holds a Master of Clinical Optometry from the University of New South Wales and is therapeutically endorsed, meaning she is qualified to administer anaesthetic drops, prescribe post-procedural medication, and manage ocular surface conditions beyond the scope of a standard optometrist. Foreign body removal is one of her core clinical specialties, and she sees a significant number of tradesperson referrals and walk-ins from across the Cumberland Council area.
The removal process at our Auburn clinic typically involves the following steps:
- Anaesthetic drops: The eye is numbed completely using topical anaesthetic drops before any instruments approach the eye. You will feel no pain during the procedure.
- Slit lamp examination: A high-magnification slit lamp microscope is used to precisely locate the foreign body, assess its depth within the cornea, and check for any associated injury to deeper eye structures.
- Sterile removal: Depending on the size and depth of the foreign body, it is removed using a sterile ophthalmic needle or spud under direct magnification. The procedure typically takes only a few minutes.
- Rust ring treatment: If a rust ring is present, a corneal burr is used to carefully debride the stained tissue. Partial debridement may be appropriate in some cases, allowing the remaining ring to soften naturally before a second visit.
- Post-procedural care: An antibiotic eye drop is prescribed to reduce infection risk. A follow-up review is typically arranged within 24 to 48 hours to confirm healing and check that the rust ring has fully resolved.
Storm and Wind-Related Eye Injuries
Not all foreign body presentations come from worksites. Western Sydney experiences some of Australia's most intense summer storms, and high-wind events regularly drive dust, grit, insect matter, grass seeds, and other debris into the eyes of people caught outdoors.
Grass seeds in particular deserve special mention. Certain grass seed types found in Western Sydney parks and reserves can penetrate the conjunctival tissue and migrate if not located and removed promptly. They do not show up on routine examination and require careful slit lamp assessment to detect.
If you have been caught in a dust storm, high winds, or experienced something hit your eye outdoors and the sensation has not resolved within 30 minutes of rinsing, it is worth having it assessed. A quick slit lamp examination will confirm whether anything remains.
Is Foreign Body Removal Covered by Medicare?
The initial eye examination is bulk billed under Medicare for eligible patients. The foreign body removal procedure itself may attract a separate clinical fee depending on the complexity of the case. We will always discuss costs clearly before proceeding, and WorkCover claims can be accommodated for workplace-related injuries where applicable. Bring your Medicare card and, for workplace injuries, your employer details or WorkCover claim number.
When to Go to Emergency Instead
In most cases, an optometrist can manage foreign body removal safely and effectively. However, please go directly to your nearest emergency department if you experience:
- A high-velocity impact (from a nail gun, compressed air, or explosion)
- Visible perforation or a wound on the eye surface
- Fluid or unusual material leaking from the eye
- Sudden complete loss of vision
- Severe, unrelenting pain that does not respond to rinsing
These presentations require surgical assessment and should not be managed in a primary care optometry setting. The nearest emergency department for Cumberland Council residents is Auburn Hospital on Norval Street, Auburn.
Book a Foreign Body Removal Appointment in Auburn NSW
Prime Optometrists is located at 43 Auburn Road, Auburn NSW 2144, a short drive from the Silverwater industrial precinct, Granville, Berala, Lidcombe, Merrylands, Regents Park, and Homebush. We see walk-in patients for eye emergencies where appointment availability allows. Call ahead on (02) 9761 0005 to confirm same-day availability.
Book online or call (02) 9761 0005. For urgent presentations, please call rather than booking online so we can prioritise your appointment.
For more on what a comprehensive eye assessment involves at our clinic, read: What Does an Optometrist Actually Check During an Eye Test?