Red Eyes – What Could Be Causing Them?
A red or bloodshot eye is a common reason people seek eye care, but the cause can range from harmless to serious. At VISION Michael Hare Optometrists, we’ll help you figure out what’s going on and what to do next.
Common Causes of Red Eyes:
- Dry eye: When your tears aren’t doing their job properly, the surface of your eye can get irritated.
- Allergies: Pollen, dust, pets, or other irritants can cause itching and redness.
- Infection: Conjunctivitis can be viral, bacterial, or allergic.
- Contact lens irritation: Poor fit, hygiene, or overwear can all lead to red eyes.
- Blepharitis: Inflammation of the eyelids can make your eyes look red and feel gritty.
- Uveitis or scleritis: These are less common but serious internal eye inflammations that require urgent care.
- Subconjunctival haemorrhage: A harmless bright red patch that looks scary but usually clears up on its own.
What Should You Do?
If your eye is red and also painful, light-sensitive, or if your vision is affected, get seen quickly. We can often treat the cause with drops or other in-office care, and if needed, we’ll refer you for specialist attention.
Book an appointment with VISION Michael Hare Optometrists. Your eyes will thank you.
Related Articles:
→ Dry Eye Treatment Options: What Works?
→ Sore Eyes: Sudden or Gradual?
→ Contact Lenses: What Are My Options?
References:
- Azari AA, Barney NP. Conjunctivitis: a systematic review. JAMA. 2013.
- Jones L, Downie LE, Korb D, et al. TFOS DEWS II Management and Therapy Report. Ocul Surf. 2017.
- McMonnies CW. Clinical ocular allergy.
Clin Exp Optom. 2016.


