Understanding the Ocular Emergency
The cornea is the clear, protective dome at the front of your eye. A Corneal Ulcer (also known as Infectious Keratitis) is an open sore that forms on this surface. It is almost always caused by an aggressive infection—bacterial, viral, fungal, or parasitic.
Unlike a simple scratch (abrasion) that heals in a few days, an ulcer is an active war zone. The invading pathogens release toxins that literally melt the corneal tissue. If left untreated for even 24 to 48 hours, an aggressive bacterial or fungal ulcer can perforate (burst through) the entire cornea, leading to devastating internal eye infections and the permanent loss of the eye. This is an absolute medical emergency.
Red Flag Symptoms
If you wear contact lenses or have recently scratched your eye, seek immediate care if you experience:
- • A visible white or grey patch on the clear part of the eye.
- • Severe, unrelenting eye pain and burning.
- • Extreme sensitivity to light (Photophobia).
- • Thick, green or yellow discharge (pus) in the eye.
The Diagnostic & Treatment Protocol
Treating a corneal ulcer is a race against time. At Prasan Nethralaya, Dr. Neelam Sharma deploys a rigorous clinical protocol to identify the pathogen and saturate the eye with targeted medication.
1. Corneal Scraping & Culturing
We cannot guess what is attacking your eye. Before starting medication, Dr. Neelam will apply numbing drops and gently scrape the surface of the ulcer using a specialized microscopic tool. These tissue samples are sent to the laboratory to be cultured. This identifies the exact species of bacteria or fungus causing the ulcer, allowing us to prescribe the perfect "sniper" antibiotic.
2. Fortified Antimicrobial Therapy
We do not wait for the lab results to begin treatment. You will be immediately started on "broad-spectrum," fortified antibiotic eye drops. These are highly concentrated, custom-compounded medications that are much stronger than standard pharmacy drops. You will be required to administer these drops continuously—often every 30 to 60 minutes, around the clock, even waking up during the night.
3. Managing Inflammation & Pain
A specific cycloplegic drop will be prescribed to dilate your pupil. This paralyzes the muscles inside the eye, which dramatically reduces the deep, aching pain and prevents the inflamed iris from sticking to the lens. Once the infection is definitively killed, steroid drops may be carefully introduced to reduce scarring.
The Aftermath: Managing Corneal Scars
As the ulcer heals, the active infection dies off, but the damaged tissue is replaced by scar tissue. A healed ulcer leaves a dense, white opacity on the cornea. If this scar is off to the side, your vision may be perfectly fine. However, if the ulcer occurred directly in the center of your visual axis, the resulting scar will permanently block your sight.
Once the eye has been quiet and stable for several months, Dr. Neelam can address this central scarring. Depending on the depth of the scar, advanced surgical options like PTK (laser scar removal) or a Corneal Transplant (DALK or PK) can be performed to replace the opaque tissue with clear donor tissue and restore your vision.
