PUBLICATION
The Contact Lens That Knows Light
Nearly two-third of patients are bothered by light on a daily basis.
- Light is both essential for sight, and yet can be challenging for the visual system to cope with.
- A significant proportion of patients have problems coping with bright light.
- Nearly two-thirds admit to being bothered by harsh or bright lighting conditions on a daily basis.
- The coping mechanisms adopted when light becomes troublesome include shading or averting the eyes, turning down the brightness of digital devices and turning off room lights.
- Actions which are certainly inconvenient, and for some behaviours such as squinting, have the potential to cause visual discomfort and fatigue.
ACUVUE® OASYS WITH TRANSITIONS
ACUVUE® OASYS with Transitions Light Intelligent Technology reduces exposure to bright light indoors and outdoors, including filtering blue light, and blocking harmful UV rays.
The lens begins to darken as soon as it is exposed to sunlight, is dark in 45 seconds, and fades back within 90 seconds. It delivers consistent performance irrespective of ambient temperature.
In objective measures of functional vision, ACUVUE® OASYS with Transitions has been shown to deliver significant improvements in both the partially activated (outdoor state) and inactivated states (indoor state) over the leading reusable contact lens.
In subjective clinical evaluations, ACUVUE® OASYS with Transitions had been shown to be superior in multiple indoors and outdoors performance metrics over the leading reusable contact lens.
Even when the lens appears clear,
some of the photochromic molecules are activated, allowing the lens to continue filtering light across the visible spectrum. The lens blocks up to 15% of light indoors, including the high energy visible (HEV) range, and up to 70% of visible light at full activation.
Performance
A study was conducted comparing the lens with two controls: a clear contact lens, and a clear contact lens with Plano photochromic spectacles worn over the top. In daytime driving conditions ACUVUE® OASYS with Transitions enabled signs to be identified 7 meters (23 feet) further away, and for night time driving 17 meters (56 feet) further away.