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Frequently
Asked
Questions

General Information

What is eSight Go?

eSight Go is a wearable assistive digital device for low vision. eSight uses an advanced high-speed, high-definition camera to capture continuous video footage of what you’re looking at. Our clinically-validated smart algorithms optimize and enhance the footage and share it on two HD OLED screens, providing sharp, crystal-clear viewing. Your brain then synthesizes the images to fill any gaps in your vision, helping you to see clearly, in real time.

eSight Go is designed to assist people with low vision regain their mobility and independence and improve the performance of daily living activities.

It is important to note that eSight Go is not intended to completely restore vision or replace medical treatment.

What is included in the eSight Go package?

The eSight Go package includes:

  • eSight Go device
  • Neck battery pack with rechargeable battery
  • 5-foot USB-C cable to connect the device to the neck battery pack
  • Remote control with two AAA batteries
  • AC power adapter with six-foot USB-C cable for charging
  • Four adjustable nose pieces (one pre-installed)
  • Microfiber cleaning cloth
  • Neck lanyard
  • Quick Start Guide
  • Safety Guide
  • Protective carrying case

Technical Specifications

What are the key specifications of eSight Go?
  • Weight of glasses: 170 grams
  • Camera resolution: 12 MP
  • Field of view: 45°
  • Magnification: Up to 24x zoom
  • Display resolution: 1920 x 1080 per eye
  • Battery life: Up to 180 minutes of continuous use
  • Operating temperature range: 0° to 38° Celsius (32° to 100.4° Fahrenheit)
  • Storage temperature range: -20° to 45° Celsius (-4° to 113° Fahrenheit)
  • IP rating: IP32 (protection against solid objects over 2.5mm and dripping water when tilted up to 15°)
What is the battery life of the neck battery pack?
The neck battery pack lasts up to 180 minutes under nominal conditions.
What is the field of view for the display and camera?
  • Display FoV: Horizontal 38.8°, Vertical 21.8°, Diagonal 44.5°
  • Camera FoV: Horizontal 68.8°, Vertical 54.3°, Diagonal 81.1°

Setup and Usage

How do I connect the neck battery pack to the eSight Go device?
  1. Connect the shorter USB cable to the port on your neck battery pack.
  2. Connect the other end of the cable to the port on the left side of your eSight glasses.
  3. Your eSight glasses will power up automatically.
How do I position the neck battery pack?
  1. Place the neck battery pack around your neck with the USB port at the bottom.
  2. Hold the sides of the glasses, gently spread them, and put them on.
  3. Guide the cable from your glasses to the neck pack.
  4. Adjust your eSight until it feels comfortable.
How do I change the nose pieces?
  1. Firmly hold the current nose piece and ease it out towards you.
  2. Select a new nose piece and push it into the slot on your eSight Go until it’s snug.

Power and Charging

How do I charge the neck battery pack?
  1. Connect one end of the 6-foot USB cable to the neck battery pack.
  2. Attach the other end of the cable to the AC adapter.
  3. Plug the adapter into a power outlet to begin charging.
  4. Press the button on the neck battery pack to check the battery level.
What should I do if the neck battery pack has been exposed to cold or hot temperatures?

If exposed to extreme temperatures, allow the battery pack to warm up or cool down to room temperature before use. Charge it for 15-30 minutes before powering on the device to ensure optimal performance.

Can the neck battery pack be replaced if it degrades over time?
The neck battery pack is designed to be replaceable. If you notice a significant decrease in battery performance over time, please contact eSight customer support for information on replacement options.

Performance and Software

Why do I see pixelation at high zoom levels?
Some pixelation may occur at very high zoom levels due to the digital magnification process. We are continuously working to optimize image quality across all zoom levels.
How does the camera perform in different lighting conditions?
The eSight Go camera automatically adjusts focus and exposure for various lighting conditions. It may experience some challenges in extremely bright direct light or in scenes with high contrast between bright and dark areas. In low light, it may take slightly longer to focus on dark objects.
What should I do if I see a blurry view?

Try adjusting the nose pad to ensure the device is positioned correctly on your face. Also, ensure the camera lens is clean and free from obstructions. If the issue persists, contact customer support for assistance.

How do I update the software on eSight Go?
eSight Go will automatically check for updates when connected to Wi-Fi. You can also manually check for updates in the Support menu.
What languages are supported at launch?
At launch, eSight Go supports English, French, and Spanish. Additional languages may be added in future updates.
How do I reset the device?
To perform a soft reset, go to Settings > Reset to Default Settings. For a factory reset, open the menu, go to Support > Factory Data Reset.
What should I do if the device enters Recovery mode?
If the device enters Recovery mode, please contact eSight customer support for assistance.

Troubleshooting

My eSight does not turn on.
Ensure the neck battery pack is fully charged and properly connected to eSight. If the device still does not turn on, try the following:

  • Charge the neck battery pack for at least 1 hour before attempting to power it on.
  • Remove the neck battery pack, plug the charging cable into the USB-C port on the left temple arm, and charge for 1+ hours.
My remote controller does not work.
  1. Put the glasses into pairing mode by putting them into sleep mode and then waking them by pressing the power button.
  2. Press and hold the Bluetooth button on the remote for 3 seconds (until the LED flashes red) and wait for the remote to pair with eSight.
  3. If the remote keeps connecting and disconnecting, replace the 2 AAA batteries in the remote controller.
  4. If issues persist, you may need to forget the remote from the eSight device and then repair. Contact customer support if further assistance is required.
My eSight feels uncomfortably hot/warm.
Ensure that you are not wearing the device too close to your forehead. The heat may be more evident if the ambient temperature is high and/or there is no airflow. Be in an environment with good airflow to ensure the internal fans can work most effectively.

Device Features

How do I use the Zoom feature?
  1. Press the Mode button until the Zoom function is activated.
  2. Increase magnification by pressing the ‘up’ button on the remote control or glasses.
  3. Decrease magnification using the ‘down’ button.
How do I adjust Contrast?
  1. Press the Mode button until the Contrast feature is activated.
  2. Use the ‘up’ and ‘down’ buttons on the remote or glasses to modify the contrast levels.
What are the available Filters and how do I use them?
Filters include Normal (Full Color), Black/White, White/Black, Blue/Yellow, Yellow/Blue, and Grayscale.

  1. Press the Mode button until Filters is enabled.
  2. Use the ‘up’ and ‘down’ buttons to navigate through different filter options.
How do I use the Tilt feature?
  1. Press the Mode button until the Tilt mode is activated.
  2. Use the ‘up’ button to tilt the display upward and the ‘down’ button to tilt it downward.
How do I use the Freeze Frame feature?
  1. To enable Freeze Frame, press and hold the Menu button until the feature is activated.
  2. Adjust zoom, contrast, and filters as needed while the image is frozen.
  3. To deactivate, press and hold the Menu button again.
How do I reset the view to default settings?
Press and hold the Mode button to revert eSight Go to its default settings within any active mode.

Usability

How do I enter pairing mode on the glasses?
Pairing mode is indicated by a blue flashing light on the left temple arm. If not flashing, put the glasses into sleep mode and wake them by pressing the power button.
How long does it take for the device to automatically go to sleep?
The device will automatically enter sleep mode after 10 minutes of inactivity.
How do I clean the eSight Go glasses?

Use the provided micro-fiber cloth to gently clean the lenses and body of the glasses. Avoid using liquid cleaners or abrasive materials, as these may damage the device.

Does eSight Go have image stabilization?
Yes, eSight Go features image stabilization to reduce bouncy or jittery camera movements, providing a smoother viewing experience.
Does eSight Go have auto-focus?
Yes, eSight Go features auto-focus capabilities, allowing it to seamlessly focus on different objects at various distances.
Can eSight Go read text aloud?
Yes, eSight Go includes a text narration feature that can read on-screen text to you.
How can I perform a factory reset on my eSight Go?

To perform a factory reset, open the menu, go to Support > Factory Data Reset. This will restore all settings to their default values.

How do I perform a forced shutdown of eSight Go?

To execute a forced shutdown, press and hold the power button for more than 10 seconds.

Can I adjust the flicker settings on eSight Go?
Yes, you can change the flicker setting in the device menu to optimize performance based on your location or environment.
Why do color filters sometimes invert depending on the background?
Color filter inversion can occur when there’s a significant contrast between foreground and background colors. This is a normal behavior designed to maintain readability across different viewing scenarios.

Software Updates

What should I do if my eSight Go is having trouble updating its software?
If you’re experiencing difficulties with a software update, try the following steps:

  1. Ensure your device is sufficiently charged.
  2. Check your Wi-Fi connection strength. Move closer to your router if possible.
  3. Restart your eSight Go device.
  4. Attempt the update again.

If issues persist, please contact our customer support team for assistance.

Why does my device get stuck on "Checking..." during an update?
This can happen if your Wi-Fi connection is weak or unstable. Try the following:

  1. Move closer to your Wi-Fi router.
  2. Ensure other devices aren’t consuming significant bandwidth during the update.
  3. If possible, temporarily connect to a different Wi-Fi network.
  4. Wait for a few minutes. Sometimes the process may take longer than expected.

If the issue continues, restart your device and try the update again.

How long should a typical software update take?

Update times can vary depending on your internet speed and the size of the update. Most updates should complete within 5-15 minutes. If an update is taking significantly longer, check your Wi-Fi connection and restart the update process if necessary.

Can I use my eSight Go while it's updating?
Yes, you use your eSight Go during the update process. Keep the device powered on and connected to Wi-Fi until the update is complete.
How often should I check for updates?
Your eSight Go automatically checks for updates when connected to Wi-Fi. However, you can manually check for updates in the Support menu.

Prescription Lenses

Can I use eSight Go with my prescription lenses?
Yes, eSight Go supports customized prescription lenses. These can be ordered separately and installed into the device.
What is the prescription lens compatibility for eSight Go?

eSight Go supports the following prescription ranges:

  • Sphere Powers: +/-8.00
  • Cylinder Powers (for astigmatism): -4.00
Can eSight Go accommodate prism prescriptions?

No, our lenses do not offer prisms prescription lenses.

Will my prescription lenses fit flush with the eSight Go housing?
Depending on your specific prescription, your Rx lenses may protrude slightly from the eSight Go housing. This is a normal and expected characteristic for many prescription lenses, especially those with higher sphere powers.
Why do some prescription lenses stick out from the housing?
To accommodate various prescription strengths without compromising the fit or functionality of the device, some Rx lenses need to extend beyond the housing. This allows us to maintain the optimal viewing experience for each user’s unique vision needs.
Does the protrusion of Rx lenses affect the performance or durability of my eSight Go?

No, the protrusion of Rx lenses does not affect the performance or durability of your eSight Go. The device is designed to securely hold and protect your prescription lenses, regardless of whether they sit flush or protrude slightly.

Will all prescription lenses protrude from the housing?
Not all prescription lenses will protrude. The extent of protrusion, if any, depends on your specific prescription, particularly the sphere power. Lenses with higher sphere powers are more likely to extend beyond the housing.
Is there a way to make my Rx lenses sit flush with the housing?

Unfortunately, we cannot adjust the lenses to sit flush without potentially compromising your prescription or the fit of the device. The slight protrusion is part of our design to ensure optimal visual performance for a wide range of prescriptions.

Should I be concerned if my Rx lenses look uneven or stick out more on one side?

It’s normal for Rx lenses to appear slightly uneven, especially if you have different prescriptions for each eye. As long as your lenses are secure and you’re experiencing clear vision, there’s no cause for concern. If you have any doubts, please contact our customer support team.

How do I clean and care for protruding Rx lenses?
Clean your Rx lenses with the same care as you would for the standard eSight Go lenses, using the provided microfiber cloth. Be gentle around the edges where the lens meets the housing. Avoid using liquid cleaners or applying excessive pressure, especially on protruding areas.
Can I still use the protective carrying case with protruding Rx lenses?

Yes, the protective carrying case is designed to accommodate eSight Go with various lens configurations, including protruding Rx lenses. Always place your device in the case with care to ensure maximum protection.

Water Resistance

Is eSight Go water-resistant?

eSight Go has an IP32 rating, which means it’s protected against solid objects over 2.5mm and dripping water when tilted up to 15°. However, it is not designed for use in rain or snow. Exposing the device to these conditions could cause it to malfunction and potentially result in accidents or injury.

Mobile Device Compatibility

Which mobile devices are compatible with eSight Go?
  • Must Support: iPhone 14 Pro Max, Samsung Galaxy S23 Ultra, iOS 17, Android 14
  • Should Support: iPhone 13 Pro Max, Samsung Galaxy S21, iOS 16, Android 13
What features does the eSight mobile app support?
  1. Wi-Fi Connectivity Assistance: Simplifies the process of connecting the glasses to Wi-Fi by sending a password over paired Bluetooth from the mobile device or by generating a QR code.
  2. eShare: Streams the glasses’ camera view to the mobile app and provides a virtual remote in the app to control the glasses.
  3. Mobile eRemote: Offers the same functionality as the physical remote control.
Why are some location options grayed out on iOS, and why is there a limit to Wi-Fi scans on Android?

On iOS, location privacy settings may restrict certain options. Ensure location services are enabled for the eSight app. On Android, there’s a system limit of 4 Wi-Fi scans within 2 minutes to conserve battery. If you encounter this limit, wait a few minutes before trying again.

How do I set up a hotspot for eShare?

To set up a hotspot for eShare, start the mobile hotspot feature from the connected app. Then, connect your mobile to the eSight hotspot as you would with any Wi-Fi network. Once connected, you can use eShare through the eSight mobile app.

Connectivity

How often does eSight Go check for software updates?

eSight Go will automatically check for updates when connected to Wi-Fi. You can also manually check for updates in the Support menu.

What type of Wi-Fi does eSight Go support?

eSight Go supports 2.4 GHz Wi-Fi networks only. Most modern routers are dual-band, broadcasting both 5 GHz and 2.4 GHz networks.

Can I connect Bluetooth headphones to eSight Go?

No, at this time you can only connect the Bluetooth remote.

How do I use the eShare feature?

To use eShare, open the eSight app on your mobile device, connect to eSight Go, press the “Share Your Screen” button, and grant permission on the eSight Go device.

How do I connect to public Wi-Fi that requires login (captive portals)?

At this time, you cannot connect eSight Go to public Wi-Fi networks that require a login.

Comfort and Usage

What if the device feels uncomfortable to wear?

eSight Go comes with multiple nose pieces to accommodate different face shapes. You can also adjust the lanyard for better weight distribution. If discomfort persists, we recommend taking breaks during extended use. If issues continue, please contact customer support for additional guidance.

What can I do if the device feels front-heavy on my nose?
Try adjusting the nose pads or using the included lanyard to distribute weight. If discomfort persists, take breaks during extended use.
Is it normal to hear a fan sound from the device?
A slight fan noise is normal and helps maintain optimal device temperature. If the noise becomes unusually loud, please contact support.
What happens when the device reaches high temperatures?
The device will display a warning and may reduce performance to cool down. In extreme cases, it will shut down to prevent damage.
Is there a comfort strap available for eSight Go?

A comfort strap is planned to be made available as an add-on accessory post-launch. This will provide additional support and comfort for extended wear. Check our website or contact customer support for updates on availability.

What should I do if my eSight Go feels warm during use?

Some warmth is normal during operation. Ensure you’re using the device in an environment with good airflow. If it becomes uncomfortably warm, take a break from using it. If the issue persists, contact customer support.

Mobility

Can I walk around while wearing eSight Go?
Yes, you can be mobile with eSight Go. However, use caution and practice in familiar environments first. You can wear the device, use the lanyard to hang it around your neck, or remove it entirely depending on your comfort level and situational needs.

Comfort Strap

Is there a comfort strap available for eSight Go?
We are currently developing a comfort strap as an add-on accessory for eSight Go. This strap will attach to the small protrusions on the temple arms of your device, providing additional support and comfort for extended wear. The comfort strap is not yet available, but we’re working diligently to bring it to our users.
When will the comfort strap be available?

We’re excited about the upcoming comfort strap, but we don’t have a specific release date to share at this time. We recommend checking our website regularly or signing up for our newsletter to stay informed about new accessories and updates for your eSight Go.

What are the small protrusions on the temple arms of my eSight Go?
The small protrusions, or “bosses,” on the temple arms of your eSight Go are designed attachment points for future accessories. While they don’t serve an immediate purpose for most users, they’re part of our forward-thinking design to enhance your eSight experience over time.
What is the purpose of these attachment points?
These attachment points are specifically designed for upcoming accessories, including a comfort strap that we’re currently developing. This strap will provide additional support and comfort for extended wear of your eSight Go.
Are the attachment points on the temple arms fragile? Do I need to be careful with them?
While the attachment points are durably designed, it’s always a good practice to handle your eSight Go with care. There’s no need for special precautions regarding these attachment points during normal use and storage of your device.

Travel and Transportation

Are there any considerations for traveling with eSight Go?
When traveling, always store eSight Go in its protective carrying case. For air travel, it’s recommended to carry the device with you as a carry-on item. Be aware of any specific airline regulations regarding electronic devices and batteries.

Web Portal

Why might the web portal report my glasses as offline?
The web portal may occasionally show the glasses as offline due to connectivity issues or delays in status updates. If this persists, check your glasses’ Wi-Fi connection and refresh the web portal.

Safety and Handling

What are the safety guidelines for using eSight Go?
  • Electrical Safety: Use only eSight-approved power adapters, batteries, and accessories. Do not use the device outdoors in rain or snow. Check the device and charging components before each use and avoid using if any part is damaged.
  • Battery Safety: Do not expose the device or its batteries to temperatures over 60°C (140°F). Do not pierce, open, or attempt to service or disassemble the battery. Seek medical attention if the battery leaks or is swallowed.
  • Interference with Medical Devices: Keep eSight Go at least 6 inches from any implanted medical device and consult a physician prior to use. If you use a hearing aid, contact the manufacturer to determine whether your hearing aid will be affected by radio frequencies emitted by eSight Go.
  • Potentially Explosive Environments: Avoid using the device at refueling points, near fuels or chemicals, or in areas with high concentrations of dust.
  • Seizure Risk: Consult with a healthcare professional if you have a history of seizures or epilepsy before using eSight Go.
  • Personal Discomfort: Stop using the device and take breaks if you experience discomfort such as blurred vision, skin irritation, eye strain, dizziness, or nausea.

Warranty and Customer Support

What is the warranty duration and coverage for eSight Go?
The warranty lasts for one year from the date of purchase and covers manufacturing defects and hardware failures. It does not cover accidental damage or misuse.
How can I contact customer support?

For customer support, visit www.esighteyewear.com/contact or email [email protected]. You can also call 1-855-837-4448 and follow the prompts to contact your eSight Coach. For international assistance, contact your local eSight Authorized Distributor or dispensing clinic.

Where can I find the serial number of my eSight Go device?
The serial number is located on the right arm of your device.

End-of-Life and Recycling

How should I dispose of eSight Go at the end of its life cycle?

eSight Go contains electronic components and batteries that should not be disposed of with regular household waste. Please contact eSight customer support for information on our recycling program or guidance on proper disposal in your area.

Data Privacy

How is user data handled and protected in eSight Go?

eSight Go is designed with user privacy in mind. The device does not continuously collect or transmit personal data. For specific details about data handling, please refer to our privacy policy.

Other Commonly Asked Questions

Who does eSight work for?
eSight is effective for the large majority of people with central vision loss. Some remaining retinal function is required. A typical eSight wearer has visual acuity between 20/60 and 20/800, although some have visual acuity of 20/1400. eSight wearers typically live with more than 20 different eye conditions.
What eye conditions does eSight work for?
eSight users have over 20 different eye conditions and most commonly live:

  • Cone Rod Dystrophy
  • Diabetic Retinopathy
  • Macular Degeneration
  • Macular Dystrophy
  • Keratoconus
  • Ocular Albinism
  • Optic Atrophy
  • Optic Nerve Hypoplasia
  • Optic Neuropathy
  • Retinopathy of Prematurity

Since each individual condition is unique, we recommend connecting with an eSight specialist to learn if eSight can work for you. To get started, complete the try eSight form or calling 1.855.837.4448 to speak to an eSight Advisor today. 

What do people do with eSight?
eSight enables a full range of daily living activities. Individuals with low vision use it for everything from watching television and playing cards to studying and working full time. The safe and mobile independence it offers in activities such as shopping, travel and improved socializing with family and friends also contributes to making eSight a part of everyday life for the vast majority of eSight wearers.
What can people with low vision or legal blindness who use eSight see?
eSight wearers see most things that normally sighted people see, such as:

  • People’s faces, from up close and afar
  • Newspapers, books, menus, signs, and other reading material, from any distance
  • Computers and other work-related tools
  • TV, movies, and other entertainment
  • Concerts, plays and other live events
  • And so much more

eSight can autofocus on short, medium and long-range objects and includes features such as 24X zoom, image contrast enhancement, reverse colour display and more allowing users to go beyond the immediate enhanced vision provided and take control of what they see.

Start your eSight journey

What would someone with low vision or legal blindness typically see?
What someone with low vision sees is highly dependent on the person and their eye condition. Typically our users describe seeing shapes, light, figures all without detail. Without eSight, they would need to be within inches of something to be able to make out details, or to view something out of their peripheral vision instead of looking straight at it.
How can someone try eSight for themselves?

We strongly encourage any potential eSight user to undertake an eSight Evaluation before moving forward with purchasing. In person evaluations are available through local eSight distributors. eSight offers evaluations in the comfort of home with a guided experience from an eSight coach, who is often an eSight user themselves. 

How does eSight work?
A wearable device, eSight houses a high-speed, high definition camera that captures everything the wearer is looking at.

Advanced, clinically-validated algorithms optimize and enhance the footage. The footage is then presented on two near-to-eye screens in real time with stunning clarity. The built-in trackpad allows the user to refine the image further through a full suite of zoom, contrast and focus controls.

eSight’s streamlined device allows the wearer to benefit from their natural peripheral vision and includes a patented Bioptic Tilt (eSight4 only) offering three positions (up, midway and down). The wearer tilts down for maximum enhanced vision and tilts up to connect with people face to face or for 100% access to their remaining natural vision when navigating new places.

Is eSight clinically validated and supported by the medical community?

“The Effect of a Head-Mounted Low Vision Device on Visual Function,” also known as “The eQUEST study was completed in collaboration with researchers at six different low vision research and rehabilitation centers. The study showed that eSight’s low vision aid was able to improve distance acuity, reading performance, contrast sensitivity, facial recognition and ADLs (Activities of Daily Living).

The study also demonstrated significant improvement when using the low vision aid including:

  • a seven-line gain in distance acuity
  • 100% mobility retention
  • 12 letter contrast improvement

Additionally, there is a major cohort of doctors – from optometrists to ophthalmologists and retinal specialists – that continue to recommend eSight to their low vision patients.

Most doctors who have evaluated eSight have said that this clinically-validated device has had a revolutionary impact on the lives of their visually impaired patients, and has enabled them to see with unprecedented visual clarity, along with granting them true mobility and independence in their everyday lives.

Is eSight FDA approved?

eSight is inspected and registered by public health officials. It is a Class 1 Medical Device

  • Registered with the FDA
  • Registered with EUDAMED
  • Inspected by Health Canada
What's coaching at eSight?
When you purchase a new eSight device you get paired up with one of our certified coaches who will help you discover some amazing things about your new eSight enhanced vision device. Our focus will be to walk you through the specific areas of interest. Designed to set you up for success, throughout the curriculum you will get answers to your questions and discuss your requirements. Your coach will be at your side throughout your time with eSight.

All eSight coaches are also eSight users.

Can eSight help with light sensitivity?
eSight lets you adjust both the brightness and contrast of the screens which means it is well-suited for people with light sensitivity. Conversely, the same ability can also help with night vision. An optional, customized sun baffle accessory is also available to assist people whose visual impairment includes sensitivity to light.
What is best-match technology?
When it comes to visual acuity, no one specification can be used to assess the effectiveness of a device in delivering enhanced vision. The highest end camera paired with a mismatched screen will degrade the quality of information sent to the brain. The power is in the fit between the camera and the lenses, the on-screen pixel density of the projected image, and the effectiveness of the software.

With the freedom of choice that comes when creating a solution composed of both proprietary and hardware, the eSight team invested heavily in research to bring best-matched camera and lens technology backed by advanced software capabilities. The result? eSight Go is the new standard for enhanced vision technology.

Is it covered by insurance?

The eSight team continues to advocate with private insurance companies, government bodies and employee benefit programs to make eSight more attainable for all. 

In the USA, Veteran Affairs provides eSight with 100% coverage. eSight qualifies for Service Disabled Veteran Owned Small Business status through our partnership with Marathon Medical.

Find out more by speaking to an eSight Advisor at 1.855.837.4448.

Can I still use the protective carrying case with protruding Rx lenses?

Yes, the protective carrying case is designed to accommodate eSight Go with various lens configurations, including protruding Rx lenses. Always place your device in the case with care to ensure maximum protection.