So you're thinking of getting smart glasses?
Smart glasses are an emerging assistive technology designed to help people with sight loss to navigate the world with greater confidence and independence.
Using a combination of cameras, sensors and artificial intelligence, these devices can interpret visual information and turn it into something more accessible - whether that’s spoken descriptions, magnified text, object recognition or real‑time guidance.
This guide introduces the key features of smart glasses, how they work and what to consider if you’re thinking about trying them.
Getting started
If you're new to exploring smart glasses, here's the basics to get you started:
Some smart glasses models can be bought on the high street, while others are made for people with specific vision issues and bought direct from the manufacturers or specialist suppliers.
For most brands you will need a compatible smartphone (along with a data contract with a mobile network) which has a ‘companion app’ installed to help the smart glasses process information.
As smart glasses work on battery power, there’s a limit to how long you can use them in one go. Even with extra power packs, it’s unlikely you’ll be able to wear them all day.
What smart glasses can do
While smart glasses don’t restore vision, they can enhance everyday experiences using in-built features and apps. Different makes and models have slightly different features, but generally they can do things like:
They can read out printed text and handwriting such as street signs, price labels and restaurant menus
Describe what’s in front of you, for example telling where the exit is in a room or which aisle you’re in at the supermarket
Help you find an item you’ve dropped or misplaced.
Make telephone calls via an app like WhatsApp
They can play music, podcasts and audio books.
Things to consider
Crossing the road
Never rely on smart glasses to help you cross the road, identifying a moving hazard or do anything else where you need to be sure of speed, distance or motion.
Always prioritise the information you receive from your mobility aids like your cane or your guide dog, as well as your own environmental awareness.
Data privacy
As with all AI tools, it’s not always clear where your data is being processed. Be cautious when it comes to getting your smart glasses to read out sensitive documents like bank statements or medical letters.
If you can, it’s safer to use offline tools for anything confidential, like an electronic magnifier, or getting a digital version of the letter and using your computer’s screen reader.
Other people's privacy
Bear in mind that smart glasses essentially record your surroundings, which could cause privacy and security concerns for some – especially parents of young children.
Also, some organisations and businesses may have a strict no-camera policy so there may be places where you simply can’t wear them.
Next steps
As the technology continues to develop, smart glasses are becoming more intuitive and tailored to the needs of people with low vision or no sight at all.
However, we strongly suggest getting a hands-on demonstration before you buy to make sure you have a clear understanding of how they might benefit you. Several shops provide demonstrations, as do some local blind societies.
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