⚠️ Blepharitis Before Cataract Surgery: A Silent Risk That Can Steal Your Sight
Please hit the ❤️ at the top or bottom of this email to help others discover All About Vision With Dr. Kondrot. Your subscription directly supports my ongoing humanitarian work—delivering free eye surgeries and care where it's needed most.
🟠 STORY AT A GLANCE
Blepharitis and anterior lid infections increase the risk of endophthalmitis—a rare but sight-threatening infection after cataract surgery.
Bacteria such as Staphylococcus aureus and Staphylococcus epidermidis often reside on the eyelid margin in patients with blepharitis.
If not treated before surgery, these pathogens can enter the eye during the procedure and cause devastating inflammation.
Preoperative management of lid hygiene and active infection is critical to minimize this risk.
Patients with chronic blepharitis should undergo lid cleaning, antibiotic therapy, or even surgical postponement if signs of active infection are present.
⚠️ Blepharitis Before Cataract Surgery: A Silent Risk That Can Steal Your Sight
Cataract surgery is often seen as quick and routine—but for patients with blepharitis or anterior lid margin disease, it carries an often-overlooked risk: post-operative endophthalmitis, a rare but serious infection that can result in irreversible vision loss or even loss of the eye.
Endophthalmitis occurs when bacteria or other pathogens enter the intraocular space during or shortly after surgery. While modern surgical techniques have reduced the risk, pre-existing lid margin disease remains a major modifiable factor—and one that is sometimes ignored in preoperative evaluations.
👁️ How Blepharitis Increases the Risk of Infection
Blepharitis is a chronic inflammatory condition of the eyelid margin, often associated with colonization by pathogenic bacteria such as:
Staphylococcus aureus
Staphylococcus epidermidis
Other gram-positive cocci
These organisms can reside in lash follicles, meibomian glands, and lid scales. During cataract surgery, manipulation of the eyelids and incisions into the eye can introduce these bacteria into the sterile intraocular environment.
In patients with untreated blepharitis, the bacterial load on the ocular surface and lid margins is significantly higher, increasing the risk of contamination even with standard sterilization protocols.
🔬 What Is Endophthalmitis—and Why Is It So Dangerous?
Endophthalmitis is an intraocular infection characterized by:
Severe eye pain
Redness
Decreased or lost vision
Hypopyon (pus in the anterior chamber)
Possible loss of the eye if not treated urgently
The prognosis depends on early diagnosis and aggressive treatment—often requiring intravitreal antibiotics or even vitrectomy. But prevention remains the best strategy.