Neurolens are the first and only prescription lenses that include an element of contoured prism in their design. This prism is designed to bring the patient’s eyes into more equal alignment, and this should help to provide relief from the symptoms that are associated with several eye misalignment conditions, including digital eye strain and binocular vision dysfunction.
Digital eye strain is the name given to describe a group of symptoms that can occur when someone spends long periods of time using digital devices. Since using digital devices requires the eyes to work harder than normal and we don’t always position our devices the perfect distance away, it can lead to issues such as eye pain, dry and irritated eyes, eye fatigue, light sensitivity and blurred vision. Unsurprisingly, the number of people who are experiencing digital eye strain has grown significantly over the last few years and is expected to continue to do so.
Binocular vision dysfunction, also known as BVD for short, is another eye condition but is one that is very misunderstood. Binocular vision dysfunction occurs when the eyes aren’t perfectly aligned, causing your brain and eyes to work harder than normal in order to create a clear visual image and remain focused. This places pressure on the trigeminal nerve, which is the nerve that is responsible for the majority of the sensations that we experience in our head and back. BVD can often manifest as other things owing to the huge range of symptoms that are associated with the condition. These can include, but aren’t limited to:
Many people don’t think to visit an eye doctor when they are experiencing these symptoms, but all can occur simply because the eyes are out of alignment.
As well as containing your usual prescription, Neurolens lenses also contain a specific amount of contoured micro-prism. This micro-prism alters the position of images so that they are aligned in the same plane. This then reduces the pressure on the muscles around the eyes as well as bringing the eyes into alignment, easing the symptoms that the patient has been experiencing.
The amount of prism in Neurolens lenses is decided using the Neurolens eye-tracking device. This non-invasively measures the misalignment that the patient is experiencing, and this is used to form the basis for the patient’s Neurolens prescription. After this, it’s fairly normal for the amount of prism to need to be adjusted by infinitesimal amounts to achieve the optimal relief from your symptoms. Most patients who choose Neurolens treatment see a 50% improvement in their vision as soon as they start to have micro-prism incorporated into their prescription lenses. However, with careful adjustments, many patients see as much as an 80% reduction in the effects of digital eye strain and binocular vision dysfunction.