What Is A Corneal Laser Procedure? A New Non-Invasive Treatment For Late-Stage AMD
Key Takeaways
- Late-stage age-related macular degeneration (AMD) affects central vision.
- Corneal Photovitrification, or CPV, uses a low-energy laser on 4 small midperipheral corneal spots.
- Candidates typically have central vision loss in both eyes and little to no cataract development.
- The treatment uses freezing drops, with no drops or oral medication needed afterward.
- Reported gains have averaged two or more lines of vision.
You look at a friend’s face, and the middle of it fades into a smudge. You can still see the doorway, the chair beside you, the movement of a dog crossing the room, because side vision often remains. It’s the centre of the picture that goes blurry or turns into a blind spot, and it’s the change people describe when they come to Bochner Eye Institute for help with late-stage age-related macular degeneration (AMD).
Corneal Photovitrification, known as CPV, is a noninvasive corneal laser procedure that treats 4 tiny spots on the midperipheral cornea to redirect light toward working retinal cells.
How Late-Stage AMD Affects Your Central Vision
Age-related macular degeneration (AMD) comes in two forms: dry and wet.
In either form, everyday tasks like reading a menu, recognizing faces, and driving become harder as central vision changes. You might find yourself turning your head slightly to catch the edge of a word, or holding a phone at an angle so a name comes into view.
Corneal Photovitrification, a Different Approach to Vision Loss
What the Corneal Laser Does
A low-energy laser treats 4 small spots in the midperipheral cornea. Light is then redirected toward retinal cells that still work. The treatment stays in the front, surface layer of the cornea, so nothing enters the eye.
Who May Be a Candidate for Corneal Laser Treatment
Not everyone with vision loss fits this treatment, and a proper assessment can sort that out quickly. In general, the people considered for CPV share a few things in common, including:
- Central vision loss in both eyes.
- Dry AMD, Stargardt disease, or Best disease.
- Little to no cataract development, or a lens that has already been replaced.
Tests Used to Check Candidacy
The assessment measures your corrected vision at distance and near, so our team knows your starting point. Corneal imaging maps curvature, elevation, and thickness.
Potential acuity testing and an angle kappa measurement round out the picture.
What the Procedure and Recovery Look Like
Here’s the typical order of events:
- Freezing drops are placed, and the chair reclines.
- A suction ring is centred, then the laser treatment takes only a brief moment.
- Both eyes can be treated, and you walk out afterward.
Aftercare and Follow-Up
You won’t need to remember drops or take oral medication at home.
Follow-up visits happen at 1, 3, 6, and 12 months so our team can track how your vision responds. The treated spots aren’t visible to the naked eye, so no one looking at you can tell anything was done.
Results and Safety
Reported gains have averaged two or more lines on the vision chart. Vision may keep improving over time as the brain adapts to the redirected light. No complications have been reported to date.
Answers to Questions People Often Ask
If you have wet AMD and receive injections, those continue as scheduled. CPV doesn’t replace them.
As for implanted telescopes, those involve surgery inside the eye, while CPV stays on the corneal surface and requires no incision.
See What Matters
The Bochner Eye Institute offers CPV assessments for people living with late-stage AMD, Stargardt disease, and Best disease. Book a consultation to find out whether a corneal laser procedure fits your situation, and take the next step toward seeing more of what matters to you.