The Peli Lens uses high-powered prisms that expand a hemianopic patient’s awareness of their blind side by over 30 degrees, helping them with peripheral vision loss attributed to Homonymous Hemianopia. This awareness enables patients to better …

The Peli Lens is a mobility aid for people with homonymous hemianopia. It is also known as “EP” or Expansion Prism concept and was developed by Dr. Eli Peli of Schepens Eye Research Institute in 1999.

Find detailed resources for doctors treating homonymous hemianopia, including tools like Peli Lens prisms and training guides.

The Peli Lens is the best solution currently available for expanding peripheral vision for patients with homonymous hemianopsia. Below, we’ll detail some of the information to take into consideration when determining if the Peli Lens is right for your patient.

Peli Lens™ (EP lens) — has two Fresnel prisms (8-mm by 22-mm) fit superiorly and inferiorly in one lens on the patient’s blind side, thus giving patient field expansion in the periphery but leaving the wearer’s binocular central vision unaltered (Figure 1). Using these lenses, patients can detect at least some of the objects on their ...

What does a Peli prism lens do? A Peli prism lens aims to expand your peripheral visual field if you have a homonymous hemianopia. It works by using high powered prisms to shift the image from the side with visual field loss onto the other side where you can see it.

In addition to being super easy to use, the PEK lets you demonstrate the full-powered Peli Lens™ in a removable format over either eye. Here’s what’s included: Oblique Lens suited for patients who need field expansion for driving or mobility; Horizontal Lens suited for patients who want improved mobility

For patients with Hemianopsia, the Peli Lens™ temporary offers a practical, temporary way to assess the benefits of Peli prisms. The stick-on and clip-on options make it ideal for in-office screenings, allowing patients to experience prism effects before committing to permanent lenses.

The Peli Lens is the most effective solution for expanding peripheral vision. For 20+ years, we've helped patients with homonymous hemianopia regain visual field and quality of life. Skip to content

Drivers with homonymous hemianopia (HH) were previously found to have impaired detection of blind-side hazards, yet in many jurisdictions they may obtain a license. We evaluated whether oblique 57Δ peripheral prisms (p-prisms) and perceptual-motor training improved blind …