science3 min read

New Laser Treatment Could Stop Blindness Before It Starts

Aalto University scientists have developed a laser treatment that uses gentle heat to activate the eye's natural repair systems, potentially preventing blindness.

James Wilson profile picture

James Wilson

November 8, 2025

New Laser Treatment Could Stop Blindness Before It Starts

Can New Laser Treatment Prevent Blindness?

Scientists at Aalto University have made a breakthrough with a laser-based treatment designed to prevent the onset of dry macular degeneration, a major cause of blindness globally. This innovative approach uses mild heat to kickstart the eye's repair mechanisms, holding great promise for millions at risk of losing their vision.

What Is Dry Macular Degeneration?

Dry macular degeneration is a condition where the macula, a critical part of the retina, deteriorates over time, impairing central vision. It represents about 85% of all macular degeneration cases. Symptoms include blurred vision and trouble recognizing faces, with age, genetics, and lifestyle as primary risk factors. Until now, no effective treatments have been available, making the discovery by Aalto University potentially revolutionary.

How Does the Laser Treatment Work?

The treatment, known as photobiomodulation, uses low-level laser light to gently heat the eye. This process does not harm but instead stimulates the eye's repair systems by:

  1. Activating Repair Mechanisms: It boosts the retinal cells' ability to clean up harmful waste.
  2. Reducing Inflammation: It helps keep the retina healthy by managing inflammation.
  3. Protecting Cells: It aims to prevent further damage to retinal cells, potentially extending vision preservation.

Why Is This Treatment Groundbreaking?

Unlike existing AMD treatments that mainly manage symptoms, this laser therapy addresses the underlying causes. Its benefits include being non-invasive, having minimal side effects, and the potential for wide accessibility.

Who Stands to Gain from This Treatment?

The primary beneficiaries of this laser treatment include:

  • Older Adults: Individuals over 50 face the highest risk of developing dry AMD.
  • People with a Family History: A genetic predisposition increases the risk.
  • Early-stage Patients: Addressing the condition early on could halt its progression.

Expert Insights

Experts, including Dr. Anna Pärssinen from Aalto University, express cautious optimism. They highlight the critical role of early detection and intervention in combating dry macular degeneration effectively. This new laser treatment represents a significant step forward in preserving vision for those at risk.

Related Articles