Using a pair of smart glasses with a camera attached, or a smartphone camera, Aira agents are able to see what a person with vision impairment sees in real-time, and then talk to them through the app so they can help the person with whatever the task is at hand. The user highly relies on the agents' service and it is paid on an expansive monthly rate. But the hand-in-hand service is more helpful than ai-based technology and requires no cost of learning.

Aira Smart Glasses

AR is a technology that augments physical environments on a mobile device screen by overlaying them with digital content. Unlike Virtual Reality(VR) that creates an immersive virtual environment, AR is based on a footprint of a real surrounding and it only adds additional computer-generated data. An AR glass is believed that can help people with vision impairment or people that are completely blind. 

Augmented Reality(AR) Glasses

QD laser is similar to NuEyes technology but is ligher and smaller that includes mini computer-screens mounted in front of eyes to projects images directly on to your retina using lazers. Not available yet for consumers and is expensive.

 Quantum-Dot(QD) laser Glasses

NuEyes  developed one of the most advanced smart glasses for visual impairment people. The lightweight glasses run on Android and include features like up to 12x magnification, the ability to change the colours and contrast of what you are looking at, bar/QR code scanning and OCR (optical character recognition) to recognise and speak out print documents. They can either be operated with a wireless controller or using simple voice commands
Very expensive and highly advanced but has not entered any health insurance plan by 2022. Requires the user to learn how to use.

NuEyes Pro Glasses

- Aira Glasses
- NuEyes
- QD Laser
- Augmented Reality Glasses

University of Illinois at Urbana-Champaign

- smart glasses
- magnifiers
- braille displays
- screen reading software
- text-to-speech systems 
- large print materials
- tactile technology
- smartcane

Assistive Technology for Vision

https://abilitynet.org.uk/news-blogs/three-cool-smart-glasses-help-people-who-are-blind-or-have-sight-loss

Three smart glasses to help people who are blind or have sight loss

A screen reader is a software program that utilizes a braille display or reads texts aloud. This program is helpful for individuals with visual impairments, difficulties reading or temporarily can't. Screen readers verbalize all visible content such as headings, paragraphs, button text, as well as hidden content such as alternative text for icons.

Screen Readers

Smart Glasses for Visual Impairment or Blind

- Obstacle Avoidance
- Navigation
- Sight Enhancement
- Machine Vision
- Human Assistance

Products for Blind Users

An electonic travel aids fits on top of the white cane that uses ultrasonic ranging to detect obstacles, and conveys distance information. Informs about presence of objects before actually touching the object with the cane and thus helps in preventing unwanted contact

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