USPTO Patents 7,886,477; 8,418,395
EyePal® USPTO Registered Trademark

Frequently Asked Questions

Which EyePal aperture is which in the Master kit?

The Rifle, Silver print with smaller aperture is in the RIGHT and the Handgun, Gold print with the larger aperture is in the LEFT.

Does EyePal work with all types of glasses?

Yes, EyePal works with sunglasses, shooting glasses, prescription glasses, progressives and real bi-focals. Please note that glasses made of glass are not recommended for either safety or shooting glasses.

Can I use EyePal with safety glasses?

Yes. A pair of safety glasses with an EyePal mounted on the lens in the shooter’s sight-line is fine. If you are using safety glasses and your reading glasses, attach the EyePal to your reading glasses.

My EyePal aperture won't stick to my glasses, what can I do?

Clean eyewear is essential. Wash the EyePal with hand soap and warm water, rinse, dry. Then with the EyePal on your fingertip, rub it briskly on some fleece or polyester material like your shirtsleeve to charge it up. Failing that, email Charlie at for your free EyePal replacement.

Can people with 20/20 vision use the EyePal?

Yes! You can easily mount the EyePal on your safety glasses to acquire a desired sight picture free of peripheral vision issues. We won’t promise you “super vision” but you be the judge…

How do I attach the EyePal to my glasses?

Simply open the top of a well and remove the EyePal being careful not to drop it. Press the EyePal onto the clean lens of the glasses. The image above shows a right-handed shooter with an EyePal located near the bridge of his glasses. Note that the cheek is resting on the comb of the stock. This will put the EyePal in the proper location. It may take a few relocation moves to find your sight-line. Thereafter, you will find it’s second nature to always place the EyePal in the same location.

Can I use the EyePal if I shoot with both eyes open?

Yes, most EyePal users who shoot with both eyes open have expressed positive results.

I'm a leftie, how do I position the EyePal?

For the rifle shooter, place the EyePal on the left lens near the bridge of the glasses.

Will the EyePal work with contacts?

A person using firearms and wearing contacts should always be wearing safety glasses at the range.Yes, you can adhere EyePal to your safety glasses while wearing contacts.

I've lost one of the EyePal apertures. How can I get a replacement?

We are happy to help you, please contact us today!

What happens if my EyePal kit loses it's cling after several years of use?

Clean eyewear is essential. Wash the EyePal with hand soap and warm water, rinse, dry. Then with the EyePal on your fingertip, rub it briskly on some fleece or polyester material like your shirtsleeve to charge it up. Failing that, email Charlie at for your free EyePal replacement.

Who would use the EyePal?

Any person who is having trouble with “fuzzy”sights when aiming a rifle, handgun or bow and arrow. The EyePal provides iron sight shooters and archers with a small image where everything is in focus. This is particularly useful to shooters who have limited near vision, distance vision or both.

Can the EyePal be used with reading glasses?

Yes, the EyePal is specifically designed for those affected with presbyopia (limited near vision). Being far-sighted, they can already resolve the target in the distance. Using the EyePal, they can now acquire the sights of the firearm at the same time.

What about people with astigmatism?

Most shooters with astigmatism get a prescription that allows a focused front sight, a slightly de-focused rear sight and a target with adequate resolution. While its impossible to account for every scenario, experience shows that most astigmatism issues are resolved when using the EyePal.

Can EyePal help me shoot a bow?

The EyePal works great for Archery! Our archer friends tell us all the time how an EyePal improved their target accuracy dramatically. Many tell us they didn’t even realize they weren’t seeing their sights clearly until they put on an EyePal.

Can I use EyePal at the indoor range?

Light levels in both shooting-booths and indoor ranges may not be adequate to properly illuminate the sights of the firearm.

Can I use the EyePal with a handgun?

Yes. The handgun sights are well within the depth of focus provided by the EyePal. Your particular stance will determine the ultimate location of the EyePal on your eyeglasses. Since the handgun is at an arm’s length away from the eye and well within the minimum focus point of eight inches, its’ sights will be in focus simultaneously with the target.

What about my "dominant eye"?

The EyePal provides the dominant eye with a sight picture with all elements in focus simultaneously. The EyePal also removes most of the unwanted peripheral vision and improves the contrast of the image.

Why doesn't EyePal stick well to my glasses?

Make sure that your glasses are really clean. Put the EyePal on your finger and rub it briskly on your sleeve or the body of your shirt to generate static. Polyester and fleece are perfect static generating materials. The EyePal will stick to your finger. It’s all charged up. Stick EyePal on you glasses in your usual line of sight.

Is EyePal Patented?

Yes, we have 2 patents: #7,886,477 and #8,418,395.

How do I find my sight line?

For the Archer, imagine where you are looking through your glasses at full draw. The line of sight is located near the bridge of your glasses. Put the EyePal there. Draw again. Look through the EyePal peep sight. If you have to change your head position, you now know where you have to move the EyePal. Once placed where the EyePal works for you, you will know where to place it in the future. It is important to have your head in a comfortable position while at full draw.

For the Rifle and Cross-bow shooter, it is automatic that your line of sight will be close to the bridge of your glasses because you “lean” into the gun to obtain the desired cheekweld. A comfortable cheekweld along with the optical axis of the eye will be the determining factors of final EyePal placement.

For the Handgun shooters, the desired sight line can be found by taking your stance and aiming your handgun. Then with the free hand, put the EyePal on your glasses in your line of sight. Once you take your particular stance you may find that you need to reposition the EyePal slightly to get it right for you.