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In keratoconus, the cornea becomes thinner and changes shape, causing distortions in vision. For example, many people with keratoconus experience shadows in their vision. Fortunately, these days we can correct this very well with scleral lenses. At Keratoconus Center Netherlands, we make extensive use of conepower® in these lenses. This not only offers higher vision (better vision), but also provides better vision at night and reduces the annoyance of shadows.
But what if we could go one step further?
What is coma?
Coma is a specific form of image distortion that can occur in keratoconus. It occurs because light is not focused evenly on the retina, creating a kind of “fanning” distortion, similar to a comet (hence the name). This can lead to blurry or unclear images, especially in low-light situations. Whereas cylinders in lenses correct astigmatism, addressing coma offers even more opportunities to improve vision.
Innovation in eyeglass lenses
Since 2023, Chrétien has been working on a groundbreaking development: a measurement set that measures coma as part of subjective refraction. This allows us to include coma, in addition to a cylinder, in lenses and contact lenses. This is a big step forward because it can provide significantly better vision in people with keratoconus.
In October 2024, we produced our first prototype lens with coma correction. Although this glass does not yet give the desired effect, we are working hard with a team of innovators and our supplier to improve the design.
Working together for better vision
At every step, we listen to our patients’ experiences and needs. Their feedback helps us develop innovative products that truly contribute to a better quality of life.
We look forward to taking this development further and hope to be able to help even more people with an appropriate vision solution in the future.
