How eyeglasses can amplify hearing
Wearing both eyeglasses and hearing aids can be frustrating for people who need them. Each device fights for space behind the ears and people may end up choosing one over the other, despite their need for both. This could be one reason that of the nearly 30 million U.S. adults who experience some form of hearing loss, only around 20% of those who could benefit from hearing aids actually use them. And more often than not, physical discomfort isn’t the only issue — barriers may include cost, stigma and complexity of use.
In 2022, the Food and Drug Administration (FDA) established an over-the-counter (OTC) hearing aid category for adults with mild to moderate hearing loss, opening the market to new manufacturers and driving down costs. One result: an emerging category of eyeglasses designed to amplify sound or display real-time captions, giving people who already wear glasses a single frame that does double duty.
“More options mean more people can address hearing loss sooner,” says Catherine Palmer, PhD, director of audiology at UPMC and professor at the University of Pittsburgh. Hearing aids don’t fix hearing loss. And distortions in the auditory system remain even with well-fitted devices. Newer technologies can fill gaps that amplification alone cannot.
What the OTC ruling means for eyewear
The FDA’s ruling spurred innovation that extends well beyond traditional in-ear devices. For people who already wear prescription glasses, the solution may reside in their frames. Hearing aid glasses and caption glasses solve the dual-device problem and offer more discreet alternatives to traditional hearing aids.
These vision-integrated hearing solutions fall into several categories, each meeting different needs and levels of hearing loss:
- Audio-enhanced eyeglasses have hearing aids built into the eyeglass frames for mild to moderate hearing loss, amplifying sound using integrated microphones and speakers.
- Real-time caption eyeglasses are made for people who are deaf or hard of hearing, providing real-time captions projected directly onto the lenses or a mobile device.
- Multipurpose augmented reality (AR) eyeglasses are smart glasses with captioning software, not designed specifically for hearing assistance.
- Context-aware artificial intelligence (AI) eyeglasses go beyond amplification or captions to provide intelligent assistance. While still emerging, next-generation AI understands conversations, rather than only transcribing them.
How do hearing aid glasses work?
Hearing aid glasses integrate directional microphones and speakers into eyeglass frames. The microphones use beamforming technology (directing a signal to a targeted device) to focus on voices right in front of the wearer while reducing background noise.
Tiny speakers in the temple arms provide sound without blocking the wearer’s ear canals. Most hearing aid glasses use Bluetooth to connect to smartphone apps, where the user can adjust volume, choose listening modes and set noise reduction levels. Hearing aid glasses are available with or without a vision prescription.
Audio-enhanced eyeglasses
Hearing glasses are ideal for adults with mild to moderate hearing loss (26-55 decibels) — about the range of a whisper to normal conversation. People in this range might miss consonant sounds and struggle to follow conversations in noisy places. These glasses can work well for active lifestyles that require hands-free operation.
Some hearing aid glasses have received FDA clearance as an alternative to OTC hearing aids. Others are still in development and expected to hit the market by the end of 2026. Two clinical trials found that self-fitted OTC hearing aids worked as well as those fitted by audiologists for adults with mild to moderate hearing loss. This was true even after eight months of use.
Dr. Palmer notes that for those with hearing aids, captioning helps where amplification falls short. This is especially true in complex listening situations, where understanding speech can be difficult.
Real-time captioning eyeglasses
Caption glasses take a different approach. Instead of boosting sound, they show speech as text in the wearer’s view. It’s like TV subtitles, projected right onto the lenses. Multiple microphones capture speech and convert it to text. The text appears overlaid on the lens, visible only to the wearer.
Caption glasses need to connect to a smartphone. Many with hearing difficulty use Bluetooth for speech-to-text processing. Basic captioning works without an internet connection, but accuracy is reduced offline and translation features require an internet connection.
Some caption glasses are designed specifically for deaf and hard-of-hearing users. These glasses use beamforming microphones at the front of the frame to focus on voices and filter background noise. AI algorithms help isolate speech, though accuracy drops in loud and windy environments.
One practical advantage over phone-based captioning: You can keep your eyes on the person you’re talking to. “Before glasses, I used live captions on my phone, which is often perceived as rude if the other party doesn’t know it’s captions,” says Chrissy Marshall, a deaf filmmaker and accessibility advocate who uses caption glasses alongside her cochlear implant. “The glasses help alleviate that misunderstanding.”
While “American Sign Language (ASL) is always ideal and preferred,” Marshall finds that glasses can be “beneficial at night and in dark environments where I don’t have an interpreter. I used to never go out at night because I rely on being able to see, but now, if we pick a good environment, I consider it.”
Marshall says caption glasses are just one part of her accessibility toolkit. They help her in quiet social settings, and she also uses them on film sets, leaving her phone with the crew so captions continue while she moves around the set.
But she is clear about their limits. They don’t work well in noisy or windy environments and require a reliable data connection. In high-stakes situations, such as work or the classroom, she relies on ASL interpreters. “It’s a tool,” Marshall says, “Not a solution — but a meaningful option.”
For people who use hearing devices, trying on frames in person, when possible, is advisable. Marshall notes that not all caption glasses fit well with a cochlear implant. Some models are also heavier than regular eyewear.
Dr. Palmer suggests anyone considering caption glasses would be advised to pay attention to the lag time. The delay between when someone speaks and when text appears should be short enough to support a real conversation. It’s worth testing this before committing to a purchase.
Multipurpose AR eyeglasses
Built for general use, AR glasses come with captioning software and target a broader, tech-savvy audience. Beyond captioning, they support navigation, notifications and entertainment. Even though they aren't designed for hearing assistance, they can help people with moderate to severe hearing loss by providing visual cues in noisy spots like restaurants, big meetings or echoey auditoriums.
Context-aware AI eyeglasses
Another emerging category of context-aware AI glasses goes beyond transcribing. Their purpose is to identify speakers, focus on voices in busy conversations, and summarize meetings. Some options already offer speaker identification and conversation summaries.
Privacy and data security
Privacy concerns with smart eyeglasses raise important questions:
- Are conversations recorded?
- Where is audio stored?
- Do companies use this data to train AI models?
- How are other media used and stored?
Manufacturers take different approaches:
- Real-time captioning glasses work offline. This means no cloud connection is needed, so conversations stay on the device.
- Context-aware AI glasses give users the choice to opt out of captions being used for AI training.
- Hearing aid glasses can store your configuration data on your phone. It also follows HIPAA rules for consumer health data.
- Cloud-based glasses take a different approach — AI features are always enabled and voice recordings are stored in the cloud for up to one year. Users can’t opt out of voice data collection, but they can manually delete recordings.
Before purchasing hearing glasses or caption glasses, review the privacy policy carefully.
What’s next for hearing assistance eyeglasses?
As more manufacturers enter this field, the expectations are for lighter frames and self-fitting tools for custom hearing profiles with enhanced sound quality. Advocates like Marshall point to classrooms as an underserved opportunity. Caption glasses could benefit hard-of-hearing students, neurodivergent learners and children in bilingual households, though insurance coverage for these devices remains limited.
The 2022 FDA ruling fundamentally changed how adults can access hearing care. Today’s market offers more choice, more affordability and more control — and it gives people more reasons to address hearing loss sooner, with options that fit their needs and lives.
Hearing-assistance glasses: What’s available today (or will be soon)?
Eyeglasses that amplify sound
The following glasses are available now or expected to launch soon. Features and availability are subject to change as this market evolves rapidly.
- One type of hearing aid glasses became the first FDA-cleared software as a medical device. The frame has six directional microphones at the front, creating what’s called beamforming to boost voices and reduce background noise. The app has four preset amplification settings. Each one is designed for different hearing loss patterns. You control volume, adjust noise reduction levels, and switch between frontal mode or all-around mode.
- Another is a smart glasses design set to launch in late 2026. Like hearing aid glasses, the design puts microphones at the front of the frame. This aligns sound pickup with your line of sight. These eyeglasses will use an AI platform to provide real-time environmental analysis to improve sound quality. The glasses will offer 35 dB of sound amplification. That's roughly the difference between a whisper and normal conversation.
Real-time caption eyeglasses
- This type of glasses is designed specifically for the deaf and hard-of-hearing, and is available in two models. One version has a large, fixed font size and supports real-time translation for 13 languages while the other offers adjustable font sizes and supports over 30 languages. Caption glasses enable offline captioning, can detect environmental sounds and offer automated note-taking.
- Another option supports 26 languages, but does not offer translation. Unlike many of the real-time caption glasses, these operate completely offline and require no smartphone or WiFi connection. The captions are processed locally, and are displayed on both lenses in real-time with 85% to 95% accuracy, depending on ambient noise. They can be found through Department of Veterans Affairs programs.
- Glasses that offer foreign language subtitles were created for the deaf and hard-of-hearing. They provide live captions with accuracy across different English accents, but appear only on the right lens. The glasses can follow up to 10 speakers, and can support transcription and translation in over 30 languages. Conversation transcripts can be saved, which requires Bluetooth and network connectivity.
Multipurpose AR eyeglasses
- Augmented reality (AR) glasses show captions on a floating display in your field of vision that only you can see. Four microphones pick up speech from as far as 10 feet away. AI algorithms then isolate voices that can make transcriptions clearer with enhanced features like contextual AI and navigation.
- Some smart glasses can run an app for real-time captions and translations, supporting 300+ languages. Users can choose from multiple transcription engines and switch between offline and cloud-enhanced captioning.
- Cloud-based smart glasses may be an option. They are available in both prescription and non-prescription styles, including sunglasses. They may have features to enhance the voice of the person you're speaking with while minimizing background noise. The AI-powered glasses also provide live captioning.
Context-aware AI eyeglasses
- These glasses can automatically identify and label multiple speakers — and translate languages — in real time. They achieve 90% to 97% accuracy for captions under ideal conditions. The glasses connect via Bluetooth to an iOS or Android app, with real-time captions and conversation summaries appearing on both lenses. Some options have a standard free membership that supports nine languages while a premium subscription could support up to 60 languages.
- Major tech companies are expected to bring to market their own AI-powered glasses in 2026 and beyond. While still in development, this technology aims to help users not just hear conversations but better understand and remember them.
