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Not Sure What Your Eye Symptoms Mean? Start Here.

Eye symptoms can be worrying, especially when they appear suddenly or persist without explanation. At London Eye & Retina, we often see patients who aren’t sure whether their symptoms need immediate attention or can wait for a scheduled consultation.
This page answers some of the most common questions related to eye symptoms, helping you decide when to seek care and what might be causing your discomfort or visual changes.
Sudden blurred vision, especially in one eye, should never be ignored. It may indicate:
  • Retinal conditions (e.g. retinal vein occlusion, macular hole)
  • Optic nerve issues
  • Acute glaucoma
  • Stroke-related eye symptoms
What to do: Seek urgent assessment, especially if it’s accompanied by pain, floaters, or visual field loss.

Flashes and floaters are common with age-related changes in the vitreous (the gel inside the eye), but a sudden increase may signal:

  • Retinal tear or detachment
  • Posterior vitreous detachment (PVD)
  • Vitreous haemorrhage


What to do:

  • A shower of new floaters
  • Flashes of light
  • A shadow or curtain over your vision

Gradual vision changes may result from:

  • Cataracts
  • Refractive changes (e.g. presbyopia)
  • Vitreous haemorrhage
  • Macular degeneration


What to do:

Schedule a comprehensive eye exam, especially if you’re over 40, diabetic, or haven’t had a recent eye check.

Possibly. Common symptoms include:

  • Foreign body sensation
  • Stinging or burning
  • Intermittent blurry vision that improves with blinking
  • Tearing (paradoxical over-watering)


What to do:

Book an assessment to confirm dry eye and identify contributing factors like screen use, eyelid inflammation, or meibomian gland dysfunction.

Foreign bodies, like metal, dust, or wood, can cause:

  • Pain and redness
  • Excessive tearing
  • Light sensitivity
  • Scratching sensation


What to do:

Do not rub your eye. If rinsing with clean water doesn’t remove the object, visit us for foreign body removal under magnification.

Yes. Blunt trauma, high-speed debris, or chemical exposure can lead to:

  • Internal bleeding
  • Corneal abrasions
  • Retinal tears
  • Elevated eye pressure


What to do:

Seek urgent eye care. We offer same-day treatment for industrial and workplace-related injuries.

These may be signs of:

  • Refractive errors (e.g. myopia or astigmatism)
  • Allergic conjunctivitis
  • Amblyopia (lazy eye)
  • Eye misalignment (strabismus)


What to do:

Early screening is key. Book a child eye exam to detect and treat issues during the crucial development window.

Likely. Symptoms include:

  • Eye fatigue
  • Headaches
  • Dryness or burning
  • Difficulty focusing after prolonged screen use


What to do:

Book a screening to rule out underlying issues like uncorrected astigmatism or poor blinking patterns. We offer strategies for digital eye strain relief.

Still Not Sure?

We understand that symptoms can be confusing or overlap between conditions. If you’re unsure whether to wait, come in, or seek emergency care, err on the side of caution.
  • We provide same-day appointments for urgent eye concerns.
  • Book a comprehensive eye consultation today.
Don’t Guess. Let’s Get to the Root of Your Eye Symptoms.
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