People around the world now spend hours a day on their smartphones. On average, daily smartphone use exceeds three hours, and for many adults, total screen time climbs to six hours or more, according to research. This constant close-up screen exposure has been linked to a growing list of eye health problems, including dry and irritated eyes, eye fatigue, blurred vision, headaches and worsening myopia, according to reports.
Edenluxa startup based in South Korea, has developed technology to address eye and hearing health issues caused by screen-intensive digital lifestyles.
The company’s mission is personal. Sungyong Park, founder and CEO of Edenlux, knows very well what it feels like to lose control of your vision. While serving as a military medic, Park received a muscle relaxer injection for severe neck stiffness. This triggered a rare side effect: temporary paralysis of the eye muscles responsible for concentration. The doctors told him there wasn’t much they could do except wait.
Park didn’t wait. He imported specialized ophthalmic equipment and began retraining his eye muscles himself. Over time, his vision gradually returned. This experience reshaped his understanding of eye health, leading Park, a doctor turned entrepreneur, to develop technology to help people protect and restore their vision in a world full of screens.
Edenlux is now preparing to launch its second wellness device, Eyeary, a daily visual recovery tool aimed at the US market, with an Indiegogo launch planned towards the end of March. Unlike medical devices, Edenlux products fall in the FDA wellness categoryallowing them to be described for visual training and general eye health. (The company chose to launch on Indiegogo rather than seek funding from investors, Park said, citing sufficient cash reserves to support its operations for several years.)
The company’s first product, Otus, was launched in 2022 in South Korea, Singapore, Japan and Taiwan. This bulky VR-style device uses lenses to contract and relax the ciliary muscle. Otus has generated $10 million in cumulative revenue and Edenlux says Easyy is designed to be faster and easier to use.
“With Otus, users typically took about 12 months to reduce their dependence on reading glasses. Eyeary could shorten that time to about six months,” Park said.
Techcrunch event
San Francisco
|
October 13-15, 2026
Eyeary is also a leap in design, he added. They look like normal glasses, are lighter and more comfortable and the lens system includes 144 diopter focal points, allowing finer focus adjustments and more precise training of the eye muscles. (Otus has five diopter focal points) The device pairs with a mobile app via Bluetooth, collecting usage data and transmitting it to Edenlux’s servers. The company analyzes data sets based on age, gender and vision profiles, using AI to predict timelines for improvement and personalize training programs.
Prolonged screen time can overload the ciliary muscle, which controls the lens inside the eye. “When people are young, their muscles are strong enough to concentrate,” Park said. “But constant smartphone use keeps it contracted, and over time it can weaken, leading to fatigue and vision problems.”
Edenlux has developed a suite of products targeting specific eye conditions, including Otus and Eyeary for visual recovery, Tearmore for dry eye, Lux-S for strabismus, Lumia for myopia prevention and Heary for hearing recovery. Tearmore, Lux-S, Lumia and Heary are expected to be deployed in Asia, Park said.
Park considers companies like Oura Ring to be peers. Both collect human data and provide insights through software, on a subscription model. But while Oura focuses on heart rate and sleep, Edenlux targets vision and hearing health.
Its target customer base includes all individuals who regularly use smartphones and headphones. “We aim to address the root causes of eye and hearing problems due to the overuse of digital devices,” Park said.
Edenlux raised $39 million in its Series A funding round in 2020 and $60 million in Series B funding in 2022. The company recently established a U.S. subsidiary in Dallas, Texas, where its devices will undergo final assembly.
Although Edenlux currently develops and manufactures in-house, it is exploring partnerships with large technology companies like Apple or Samsung, with the aim of integrating its vision protection technology into smartphones.
By combining first-hand knowledge, advanced science and hardware devices, Edenlux believes that eye health in the digital age is more than a wellness trend: it is an emerging area of consumer technology.
