Eagleview Eye Clinic

Tag red eye

PATTERN ERG

Pattern ERG (PERG) measures electrical activity from retinal ganglion cells in response to a reversing checkerboard pattern. It’s great for spotting optic nerve issues like glaucoma and macular problems.

  • How it’s done: Electrodes on the eye, patient looks at a screen with a checkerboard pattern that flips contrast.
  • What it records: P50 wave (early positive) reflects ganglion cell function; N95 wave (negative) relates to optic nerve health.
  • Key use: Detects ganglion cell loss early, even before visual field defects show up.
  • Difference from full-field ERG: PERG focuses on central retina and optic nerve, not whole retinal response.
FUNGAL KERATITIS

Fungal keratitis = infection of the cornea (the clear front part of the eye) caused by fungi. It’s less common than bacterial keratitis but can be more sneaky and harder to treat.

How it happens 🍄

  • Trauma with organic matter (tree branch, soil, plant material)
  • Contact lenses (especially if you wear them overnight or in dirty conditions)
  • Immunosuppression or chronic eye disease
  • Contaminated eye drops or solutions

Common culprits

  • Filamentous fungi: Fusarium, Aspergillus
  • Yeasts: Candida

Symptoms (often slower onset than bacterial)

  • Eye pain (can be severe)
  • Redness
  • Blurred or hazy vision
  • Sensitivity to light (photophobia)
  • Tearing or watery discharge
  • White, gray, or feathery corneal infiltrate (spot)

Diagnosis

  • Slit-lamp exam: Looks for typical fungal plaque or ulcer
  • Corneal scraping: Microscopy and culture to ID the fungus
  • Sometimes PCR testing for faster results

Treatment goals

  1. Kill the fungus
  2. Control inflammation
  3. Prevent complications (like scarring or perforation)

Treatment options

  • Topical antifungals: Natamycin 5% (gold standard for filamentous), Amphotericin B, Voriconazole drops
  • Oral antifungals: Voriconazole or Itraconazole for severe/deep cases
  • Debridement: Scrape infected tissue to improve drug penetration
  • Steroids: Controversial; used cautiously to control inflammation after fungal load is down

Complications if untreated

  • Corneal scarring → vision loss
  • Corneal perforation (hole in cornea)
  • Endophthalmitis (infection spreads inside the eye)

Prevention tips

  • Protect eyes in dusty/agricultural settings (goggles)
  • Proper contact lens hygiene (clean, replace solutions, no overnight wear unless approved)
  • Avoid rubbing eyes after injury; seek care ASAP
EYE CONDITIONS THAT CAN CAUSE RED EYES.

Often, lots of people treat red eyes with kid gloves. Yeah right, what’s so special about your eyes turning red anyway.

What people fail to understand is that many serious eye conditions present with red eye more times than often.

The following below are some of the major eye issues that can present with red eyes.

  1. Allergic conditions e.g vernal conjunctivitis
  2. Inflammatory conditions like uveitis, scleritis, keratitis
  3. Infectious conditions like bacterial conjunctivitis, infectious keratitis, panophthamitis, endopthamitis
  4. Close angle glaucoma.
  5. Refractive Errors like hyperopia, Astigmatism
  6. Traumatic conditions like hyphema.
  7. Others like dry eye syndrome, pterygium, computer vision syndrome. et.c

So when next you experience red eyes, just know that there may be more to it that meets the eyes.

EYE CONDITIONS THAT CAN CAUSE RED EYES.

Often, lots of people treat red eyes with kid gloves. Yeah right, what’s so special about your eyes turning red anyway.

What people fail to understand is that many serious eye conditions present with red eye more times than often.

The following below are some of the major eye issues that can present with red eyes.

  1. Allergic conditions e.g vernal conjunctivitis
  2. Inflammatory conditions like uveitis, scleritis, keratitis
  3. Infectious conditions like bacterial conjunctivitis, infectious keratitis, panophthamitis, endopthamitis
  4. Close angle glaucoma.
  5. Refractive Errors like hyperopia, Astigmatism
  6. Traumatic conditions like hyphema.
  7. Others like dry eye syndrome, pterygium, computer vision syndrome. et.c

So when next you experience red eyes, just know that there may be more to it that meets the eyes.

EYE CONDITIONS THAT CAN CAUSE RED EYES.

Often, lots of people treat red eyes with kid gloves. Yeah right, what’s so special about your eyes turning red anyway.

What people fail to understand is that many serious eye conditions present with red eye more times than often.

The following below are some of the major eye issues that can present with red eyes.

  1. Allergic conditions e.g vernal conjunctivitis
  2. Inflammatory conditions like uveitis, scleritis, keratitis
  3. Infectious conditions like bacterial conjunctivitis, infectious keratitis, panophthamitis, endopthamitis
  4. Close angle glaucoma.
  5. Refractive Errors like hyperopia, Astigmatism
  6. Traumatic conditions like hyphema.
  7. Others like dry eye syndrome, pterygium, computer vision syndrome. et.c

So when next you experience red eyes, just know that there may be more to it that meets the eyes.

EYE CONDITIONS THAT CAN CAUSE RED EYES.

Often, lots of people treat red eyes with kid gloves. Yeah right, what’s so special about your eyes turning red anyway.

What people fail to understand is that many serious eye conditions present with red eye more times than often.

The following below are some of the major eye issues that can present with red eyes.

  1. Allergic conditions e.g vernal conjunctivitis
  2. Inflammatory conditions like uveitis, scleritis, keratitis
  3. Infectious conditions like bacterial conjunctivitis, infectious keratitis, panophthamitis, endopthamitis
  4. Close angle glaucoma.
  5. Refractive Errors like hyperopia, Astigmatism
  6. Traumatic conditions like hyphema.
  7. Others like dry eye syndrome, pterygium, computer vision syndrome. et.c

So when next you experience red eyes, just know that there may be more to it that meets the eyes.

CHEMICAL BURNS: Chemical Irritants in the Eye



The eyes are one of the most sensitive and delicate parts of the human body. They require proper care and attention to maintain good vision and overall eye health. One common hazard that can affect the eyes is chemical irritants. These irritants get into they eyes and cause what we call chemical burns.

Chemical irritants can enter the eyes and cause chemical burns through the following various means:

– Using bar soap while bathing
– Applying facial treatments such as face scrubs and face washes
– Accidentally getting cream or lotion in the eyes.

When chemical irritants enter the eyes, they can cause a range of issues which includes:

– Discomfort and pain
– Irritation and itching
– Dryness and redness of the eyes

Long-term Effects

If left untreated, chemical irritants can cause damage to the eye tissue, leading to impaired vision.

What to Do in Case of Chemical Irritation

If you accidentally get chemicals in your eyes, follow these steps:

– Flush your eyes with clean, lukewarm water for at least 15 minutes
– If the discomfort persists after flushing, visit an eye clinic near you to consult an optometrist