Biologics and The Eye

By Dr. Kevin -

 As biologic medications become a cornerstone of modern treatment for everything from cancer to autoimmune diseases, it is increasingly important to understand how these powerful therapies can impact your vision. This article, Ocular Complications of Biologics: A Review for ODs, provides an essential guide to the eye-related side effects that can occur with these treatments.

What are Biologics?

Unlike traditional drugs made from chemicals, biologics are complex medicines derived from living organisms. They are designed to be highly targeted, acting like a "heat-seeking missile" to treat specific diseases. However, because the receptors these drugs target can also be found in the eye, they sometimes cause unintended "off-target" effects.

Common Eye-Related Side Effects

While these medications are life-saving, they can lead to various ocular issues ranging from mild to severe:

  • Surface Irritation: Many patients experience dry eyes, redness, or a "gritty" feeling.

  • Inflammation: Some drugs can cause internal eye inflammation (uveitis) or swelling.

  • Vision Changes: Side effects like blurred vision or changes to the cornea (the front window of the eye) can occur with specific drug classes.

The Importance of Collaborative Care

The key takeaway for patients is the need for a team-based approach. Because these side effects can often be managed with eye drops or minor treatment adjustments, it is vital for your eye doctor and your primary specialist (such as an oncologist or rheumatologist) to stay in close communication. Regular eye exams during treatment can help catch and treat these issues early, ensuring you can continue your systemic therapy safely.

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