The PEK (Peli Evaluation Kit) is an all-in-one solution for you to quickly demonstrate the Peli Lens to your patients and determine if they can benefit from it. Learn more about the PEK on this page. 

Peli Evaluation Kit

Table of Contents

Wanna get the kit? Follow this link or use the button below(Note: You will be redirected to Tech Optics International, our division for low vision devices.)

From a Veteran’s Affairs Hospital or Vision Center? We may be able to offer the PEK to you on consignment. Click here to submit a request.

Prefer to watch instead of read? Check out our video introducing the PEK.

What's the PEK?

We’ve been working with doctors and therapists for over 20 years to help patients with homonymous hemianopia regain as much visual field as possible (while improving their qualify of life).

The Peli Lens has been proven time and again to be the best solution for  helping homonymous hemianopia patients expand their peripheral vision (don’t take our word for it – check out the Peli Lens publications page if you want some super in-depth, scientific reading material).

But, we discovered that demonstrating the Peli Lens in-office can be cumbersome.

Why? Because the Peli Lens comes in two lens types and patients are afflicted in either their left or right eye. Up until now, that has required  keeping multiple pairs of glasses or fitovers on hand to use in the demonstrating process.

The other option has been to attach training prisms to the patient’s glasses to try them out. The drawback of this approach is that patients do not get the benefit of switching between their normal corrected vision and the training lenses multiple times. Once training prisms are attached to the patient’s glasses, that’s it. And, training prisms are about 50% weaker than the full-power Peli Lens.

Enter the PEK.

Our PEK is a compact way for your patients to quickly and easily take the Peli Lens for a test run. In addition to being super easy to use, the PEK lets you demonstrate the full-powered Peli Lens in a removable format.

Here’s what’s included:

  • The Oblique Lens is suited for patients who need field expansion for driving and mobility
  • The Horizontal Lens is suited for patients who want improved mobility
  • Fitover frame: using 3 magnets embedded into each side of the fitover frame, you can attach either lens to test oblique and horizontal prisms on the right or left eye without requiring your patients to take off their glasses (it also works for patients who don’t wear prescription glasses)
  • Training Prisms Kit lets you practice fitting and training patients for training prisms 

Fully Assembled PEK

PEK Fitover Frame

Oblique Peli Lens Peripheral Prisms

How the Peli Lens Works

By placing high-powered prisms in a patient’s peripheral vision, the Peli Lens expands a homonymous hemianopia patient’s visual field and gives them more awareness of their missing peripheral vision.

Increased awareness can lead to a greater ability to avoid collisions and navigate around obstacles. Some patients are even able to drive again with the Peli Lens. 

The Peli Lens Process

Helping your patient get the Peli Lens is straightforward and simple. We recommend following the process outlined below for best results. 

  1. Determine Peli Lens is the Solution: if your patient suffers from stroke-related visual field loss, the Peli Lens will likely help them regain some lost vision
  2. Demonstrate the Peli Lens: Use the PEK to show your patients the Peli Lens in-office to demonstrate its benefits
  3. Fit Training Prisms, a cost-effective way for your patients to take the Peli Lens for a test run over a 4-to-6 week trial period
  4. Begin At-Home Training: during the trial period, routine at-home training has been shown to increase the benefit a patient receives
  5. Order the Full-Power Peli Lens, which offer greater field expansion and are far more durable than training prisms

*Our experience has been that deviating from this process results in poorer results for your patients. 🙁

Learn more about the Peli Lens process by clicking here.

Click to enlarge

Training Prisms

Training prisms are an affordable option for your patients to try before committing to a more permanent and expensive solution.

While training prisms expand visual field, they are meant to be used for a short period (4-to-6 weeks) and do not provide as much field expansion as full-power prisms.

We do not recommend that patients rely on training prisms for long-term use because they will not experience as much benefit as with full-power prisms.

The good news is that 74% of patients who complete the trial period with training prisms wished to continue using the Peli Lens. Proper fitting and training leads to even higher success rates.

Need to order training prism kits? Click here or use the button below. You’ll be taken to Tech Optics International, our low vision department, where you can order directly from the website.

Front view of training prisms

Back view of training prisms

Full Power Peli Lens Prisms

Full-power Peli Lens prisms offer almost double the expansion of training prisms in a highly durable format. And, after working with doctors and patients for over 20 years to find the best possible configuration for full-power prisms, we’re happy to introduce the latest breakthrough in Peli Technology: the SLAM (Single Lens Attached by Magnets).

SLAM: Single Lens Attached by Magnets

Using SLAM technology enables us to create a removable lens that can be attached via magnets when your patient needs field expansion and easily taken off when they don’t.

The full-power Peli SLAM offers:

  • Staying Power: our Peli SLAM solution stays put even when vigorously shaken
  • Durability: design to last for years to come, the Peli SLAM is highly durable
  • Comfort: a single lens weighs less than all other options, offering maximum comfort
  • Portability: At less than the size of a business card, the Peli SLAM lets your patient easily take it with them
  • Flexibility: patients can wear the Peli SLAM when they need and remove it when they don’t

Best of all? Your patient can continue to use the Peli SLAM even if their prescription changes (provided they retain their original frames). This makes the Peli SLAM a permanent, cost-effective solution for patients in the long run.

We even include a convenient, compact carrying case that easily fits into your patient’s pocket or purse. 

Note: While we can install the Peli Lens into multiple frame types, we recommend our Peli Lens using SLAM technology solution for most patients.

Learn more about the Peli Lens using SLAM technology.

Prescribing the Full-Power Peli Lens

When you’re ready to prescribe the full-power Peli Lens for your patients,  use this link to access our Peli Lens order forms.

If you need any help, let us know! We’re always eager to assist you with getting your patients what they need.

Need something not mentioned on this page? No problem! We’ve put Peli Lens peripheral prisms into a wide variety of lenses and can help you get your patient what they need. Just give us a shout and we’ll be more than happy to take care of you.

Get the PEK

Ready to get the PEK? We’ve put together everything you need to get your hands on the Peli Evaluation Kit. We call that kismet. Or super effective marketing.

To get the PEK, please click here. You’ll be taken to the product page on Tech Optics International, our low-vision division.

Or, if you have any questions, give us a shout. We want to answer them (as long as they’re within the realm of optical stuff).

Coming from a VA office? Sweet! You may qualify to get the PEK on consignment. Just click here and fill out our request form.