By SHIVALI BEST FOR MAILONLINE PUBLISHED: 07:59 EDT, 29 July 2022 | UPDATED: 09:04 EDT, 29 July 2022 While smart glasses were once constrained to the world of science fiction, brands ranging from Snapchat to Facebook have released their own devices in recent years. Now, a new pair of smart glasses has been launched for people who are deaf or...