Visual Comfort

Visual Comfort

Spectacles are designed for you to be able to comfortably view and interact with Lenses through customizable fitting and adjustable settings. Some individuals may still experience visual discomfort when using Spectacles.  You can reduce the impact of visual discomfort by ensuring that your Spectacles fit comfortably and have been set up for your circumstances.

 

What is visual discomfort?

Visual discomfort may be experienced differently by individuals and can take the form of dry or watery eyes, eye strain, blurry or double vision, or headaches. Blinking and taking breaks whilst using Spectacles and not using them for an extended period of time are great ways of maintaining comfort (see our Best Practices for further details). You can also adjust the depth of some 3D images to improve visual comfort (see adjusting position of 3D images for further details). If you experience any of these symptoms, take a break immediately, and do not start again until the symptoms have resolved. 

 

Inter-Pupillary Distance (IPD)

Inter-pupillary distance (IPD) is the distance between your pupils. 

During the onboarding, if you have a compatible device (iPhone 10 or later), you’ll be prompted to use the IPD (inter-pupillary distance) Lens to measure the distance between your eyes. Adjusting the IPD will help give you the most comfortable and immersive experience with Spectacles by placing 3D images at an optimal depth. If you notice that content frequently appears to be misaligned in depth (e.g., Palm-UI buttons floating above the hand), you can try measuring your IPD again to see if you get a new result. 

If you do not have a compatible device, or you would like to adjust the measurement manually, you can make changes in the Spectacles app settings.

 

Adjusting the position of 3D Images

Some, but not all, Lenses and 3D images can be adjusted to a more comfortable reading or interacting distance which will help reduce visual discomfort. 

Using gestures like pinch, and pinch and pull, you can move containers like the Lens Explorer to a more comfortable near or far field distance, whatever works best for you. Note that moving content closer to 1 meter (about 3 feet) away and into the center of your field of view has the best chance of improving perceived content quality and visual comfort. You can also step closer or further away from some 3D images to make viewing more comfortable. 

 

Adjusting the Nose Pad 

The nose pad of your Spectacles is adjustable. By making changes to the nose pad you can adjust your eye position relative to the display, and make Spectacles more comfortable to wear. 

 

To adjust the nose pad, take your Spectacles off and apply light pressure to both pads in either direction (making the space larger or smaller), then put Spectacles back on and check the display and nose fit. This might take a few tries to get right. 

 

When adjusted correctly, your Spectacles should fit more comfortably, reduce pressure on your nose, and make the left and right displays fully visible. You can also check in a mirror to confirm the fit of your Spectacles.

 

Optical Inserts 

If you need vision correction, optical Inserts from our partners Lensabl (North America) or Lensology (Europe) may improve your experience with Spectacles. Optical inserts will be custom made with your prescription and attach to Spectacles, sitting between your eyes and the display. 

Contact lens wearers should be able to use Spectacles without optical inserts.

 

Is my prescription eligible for Lensabl’s optical inserts?

Supported prescription ranges are determined by “Total Power”. Spectacles support optical inserts with a range of Total Power from +1.00 to -5.00 diopters. To determine whether your prescription is supported, calculate Total Power by combining your Sphere and Cylinder values from your prescription. 

 

Examples for how to assess your Total Power below:  

 

 

From the table above, the example of -6.00 and -5.75 would fall out of the range of supported prescriptions. Note, you will only supply your prescription to Lensabl or Lensology, not the “Total power”.

For further information, and to confirm whether your prescription can be supported, please reach out to Lensabl or Lensology directly.

 

Fitting your Optical Insert

To use an optical insert please carefully remove the existing nose clip by pulling it directly away from the frame until it comes loose. The optical insert (that includes a nose clip) can then be inserted by pushing it until it clicks into place. The nose pad of the insert can then be adjusted to fit.

 

Display Brightness

Adjusting the brightness of the 3D images Spectacles creates can help reduce eye strain, particularly when viewing bright images against a dark background. 

 

Spectacles have a standard auto brightness feature. We recommend that this feature is left on, but if you do adjust the brightness, you’ll need to manually turn auto brightness back on in the Spectacles Settings. 

 

In addition to brightness settings, you can have either tinted or untinted lenses which affect how easily you can view both the experiences and the real world through your Spectacles. If you change the tint while auto tint is enabled, the auto tint will be disabled until the device goes to sleep. 

 

A minimum background/environment illuminance of 100 lux is recommended while using Spectacles. This is similar to a dark/overcast day.

 

Understanding the fit before purchase 

Spectacles are designed for inter-pupillary distances (IPD’s) from 57mm to 71mm.  If your IPD is outside of this range, you may have difficulty viewing 3D content. See Inter-Pupillary Distance for more information.  

 

Cleaning the Lenses 

Any dirt or smears on the lenses will impact your visual experience. 

 

When cleaning your Spectacles lenses we recommend that you use a dry microfiber cloth and gently rub the lenses. 

 

If you are using optical inserts they should also be removed and cleaned regularly as you would your glasses. 

 

Wearing whilst Charging 

If you are wearing Spectacles whilst tethered to a charger try to route the cable to minimize the chance it gets pulled abruptly (like being caught on an arm rest).