Equilibrium Lenses
Image Stabilizer Technology for Anisometropic / Antimetropic Patients
When Your Two Eyes Need Very Different Corrections
Have you ever put on your glasses and still felt that your vision was not completely comfortable or natural? Even though the world may look sharp, you might notice it is difficult to judge distances accurately, or you frequently experience headaches and eye strain by the end of the day.
These symptoms are very common when the prescription needed for your left eye is significantly different from the prescription needed for your right eye.
These symptoms are very common when the prescription needed for your left eye is significantly different from the prescription needed for your right eye.
How This Creates Image Size Differences
A large difference in the refractive error between your two eyes is known as anisometropia. This simply means that one eye needs a much stronger or weaker lens power than the other to see clearly. For instance, one eye might require a prescription of minus five diopters for clear distance vision while the other eye only needs minus one diopter.
When one eye is nearsighted and the other eye is farsighted, the condition is known as antimetropia. In antimetropia, one eye has trouble seeing distant objects clearly while the other eye struggles to focus on things up close. These types of prescription differences lead to aniseikonia, a situation where the image seen by one eye appears noticeably different in size or shape from the image seen by the other eye.
When one eye is nearsighted and the other eye is farsighted, the condition is known as antimetropia. In antimetropia, one eye has trouble seeing distant objects clearly while the other eye struggles to focus on things up close. These types of prescription differences lead to aniseikonia, a situation where the image seen by one eye appears noticeably different in size or shape from the image seen by the other eye.
How This Affects Your Vision
Your two eyes are naturally designed to work together as a team to give you one clear, comfortable, and three dimensional view of the world. When the images reaching each eye are different in size, your brain must work much harder to try to fuse them into a single picture. This extra effort by the brain commonly results in eye strain, reduced ability to judge depth, frequent headaches, and an overall feeling of visual discomfort or fatigue.
A Real Life Example
Here is a clear example using a photo of the Merlion in Singapore at sunrise.
In the original scene, the view looks perfectly normal and balanced to the naked eye. However, when viewed through standard spectacle lenses, the left eye sees the statue and fountain as much larger while the right eye sees them considerably smaller. This difference in perceived size makes it very difficult for the brain to combine the two images into one natural and comfortable picture.
Limitations of Standard Spectacle Lenses
Standard spectacle lenses perform very well at correcting blurry vision. They work by adjusting the focus of light so that each eye can see both near and distant objects clearly. However, regular lenses do not correct or compensate for the difference in image size between the two eyes.
Even the most advanced freeform or highly customized top tier lenses cannot solve the problem of aniseikonia.
(Those lenses are optimized using important fitting parameters such as pantoscopic tilt, vertex distance, monocular pupillary distance, and frame wrap angle. They improve clarity and comfort based on exactly how the glasses sit on your face. However, they do not change the magnification or image size difference between the two eyes.)
Because of this, many people with a significant prescription difference between their eyes, often two diopters or more, continue to suffer from discomfort, headaches, and problems with depth perception even when their regular glasses are accurately fitted and prescribed.
Even the most advanced freeform or highly customized top tier lenses cannot solve the problem of aniseikonia.
(Those lenses are optimized using important fitting parameters such as pantoscopic tilt, vertex distance, monocular pupillary distance, and frame wrap angle. They improve clarity and comfort based on exactly how the glasses sit on your face. However, they do not change the magnification or image size difference between the two eyes.)
Because of this, many people with a significant prescription difference between their eyes, often two diopters or more, continue to suffer from discomfort, headaches, and problems with depth perception even when their regular glasses are accurately fitted and prescribed.
The Equilibrium Solution
Equilibrium lenses use advanced Image Stabilizer Technology to directly address and solve this problem. These special iseikonic lenses are custom designed to make the images seen by both eyes equal in size. Each pair is individually crafted with precise changes to the lens curve, center thickness, and other key optical features.
As a result, both eyes deliver matching sized images to the brain. This enables your eyes to work together smoothly and naturally, providing the comfortable vision you have been missing.
With Equilibrium lenses, most people experience truly natural and balanced vision for the first time. You can expect noticeably better depth perception, significantly reduced eye strain, and far fewer headaches. These improvements help make everyday tasks such as driving in traffic, working long hours on a computer, reading, and enjoying sports much easier, more comfortable, and more enjoyable.
As a result, both eyes deliver matching sized images to the brain. This enables your eyes to work together smoothly and naturally, providing the comfortable vision you have been missing.
With Equilibrium lenses, most people experience truly natural and balanced vision for the first time. You can expect noticeably better depth perception, significantly reduced eye strain, and far fewer headaches. These improvements help make everyday tasks such as driving in traffic, working long hours on a computer, reading, and enjoying sports much easier, more comfortable, and more enjoyable.
Who Benefits Most
Equilibrium lenses are especially beneficial for people who have a large difference in prescription strength between their left and right eyes. This includes those with anisometropia or antimetropia. These lenses are available in single vision, office, and progressive designs, allowing them to be perfectly matched to your individual vision requirements and lifestyle needs.
If you have been living with unbalanced or uncomfortable vision caused by different prescriptions in each eye, Equilibrium lenses with Image Stabilizer Technology offer a highly effective solution.
If you have been living with unbalanced or uncomfortable vision caused by different prescriptions in each eye, Equilibrium lenses with Image Stabilizer Technology offer a highly effective solution.
