We use our experience and advanced technology to produce glasses with prisms prescribed by ophthalmologists, optometrists, or orthoptists. Many large chain stores struggle with higher prism prescriptions. We typically provide a solution by ensuring the right frame and lens combination for the task. Because we do our own work, in house with our own highly experienced optical mechanic, we achieve great results.
Why do I need glasses with prisms?
Some people need prismatic glasses because their eyes don’t coordinate properly. Their eyes may drift inward, outward, or one eye may turn up or down, leading to blurred or double vision. This condition commonly affects elderly patients. While severe cases can be corrected with surgery, glasses usually provide the most effective and non-invasive solution.
Can contact lenses substitute for glasses with prisms ?
Contact lenses cannot take the place of glasses with prisms because they sit directly on the eye. Prismatic lenses need a difference in thickness from one edge to the other. This would would cause extreme discomfort if applied to contact lenses.
How are glasses with prisms made?
We can produce glasses with prisms using either stock (off-the-shelf molded) lenses or specially ground (surfaced) lenses. The optician (optical dispenser) determines whether stock lenses can achieve the required prism. All multifocal lenses, whether progressive or bifocal, must be specially ground.
Fresnel Prisms
Another way of making prismatic glasses is using the press-on or “Fresnel” prism, a flexible plastic piece with prismatic ridges. We can attach it to your existing glasses. It is usually as a temporary solution or when the required prism strength isn’t achievable due to lens thickness limitations. Unfortunately, vision through a Fresnel prism isn’t as clear as a regular lens. The reason for this is because the ridges and the soft plastic material aren’t optically perfect.
Here is a great article explaining more: https://www.aao.org/eye-health/glasses-contacts/what-is-prism-correction-in-eyeglasses
