Foreign Objects in the Eye: Risks and Long-Term Effects Explained - Ophthalmology

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Foreign body in the eye?


Hello, doctor.
Today I saw a news article about Acanthamoeba keratitis, and it reminded me of an incident that happened a long time ago.
While I was eating, a piece of meat fell into my lunchbox, and because the chicken was chopped into pieces, some red fragments ended up in the corner of my eye (I'm not sure if the area is called the inner canthus).
I removed it at that moment, but afterward, my eye became red and stayed that way.
I continued to see an ophthalmologist, but my eye remained red for a long time.
Eventually, I stopped paying attention to it, and mysteriously, the redness went away.
I would like to ask if there is a possibility that I could have had some kind of parasite or infection from that incident.
Since it happened a long time ago, I now have regular eye check-ups every three months.
If there were any issues with my eyes, would the doctor be able to detect them during the examination without me specifically mentioning it? Thank you.

Ting, 40~49 year old female. Ask Date: 2023/03/16

Dr. Gao Pilin reply Ophthalmology


Hello: Based on the information you provided, the likelihood of amoebic keratitis or other parasitic infections is low, as your symptoms appear to be just temporary redness and swelling.
However, it is still advisable to seek medical attention as soon as possible to ensure that your eyes are not infected or otherwise damaged.
Generally, if there is an issue with your eyes, an ophthalmologist should be able to detect it during an examination.
However, some eye conditions may require further testing to be identified, so if you have any concerns or symptoms, it is best to have regular eye examinations and discuss your condition with your physician to facilitate early detection and treatment of any issues.

Reply Date: 2023/03/16

More Info


Foreign objects in the eye can pose significant risks and lead to long-term effects, especially if not addressed promptly and properly. In your case, it sounds like you experienced a foreign body sensation when a piece of food accidentally made contact with your eye. This can lead to various complications, including irritation, infection, or even more serious conditions like corneal abrasions or keratitis.

When a foreign object, such as food particles, comes into contact with the eye, it can cause immediate discomfort and redness, as you experienced. The eye is a sensitive organ, and any foreign material can trigger an inflammatory response, leading to symptoms like redness, tearing, and a sensation of something being in the eye. If the object is not removed properly or if it causes damage to the cornea, it can lead to more severe issues, including infections.

In your case, the redness you experienced after the incident could have been due to several factors. First, the mechanical irritation from the food particle could have caused a corneal abrasion, which is a scratch on the surface of the eye. This can lead to inflammation and redness. Second, if the foreign body introduced bacteria or other pathogens into the eye, it could have resulted in an infection, such as conjunctivitis or even more serious conditions like keratitis, which is an inflammation of the cornea.

Regarding your concern about potential parasitic infections, while it is less common for food particles to introduce parasites into the eye, it is not entirely impossible. Acanthamoeba keratitis, for example, is a serious infection caused by a microscopic organism that can be found in contaminated water or soil. However, this is typically associated with contact lens wearers or exposure to contaminated water rather than food particles.

It's good to hear that you have been regularly visiting an eye doctor every three months. During these check-ups, your eye doctor will conduct a thorough examination, which typically includes checking for signs of infection, inflammation, or any other abnormalities. If there were any lingering effects from the incident, such as scarring or chronic irritation, your doctor would likely be able to detect these during the examination.

If you ever experience persistent symptoms such as redness, pain, or changes in vision, it is crucial to seek medical attention promptly. Early intervention can prevent complications and ensure that any underlying issues are addressed.
In summary, while your incident with the foreign body in the eye may have caused temporary irritation, the fact that you have not experienced ongoing symptoms suggests that any potential damage has likely resolved. However, maintaining regular eye examinations is essential for monitoring your eye health and catching any potential issues early. Always prioritize eye safety, especially when eating or engaging in activities that could lead to foreign objects entering the eye.

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