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Certified Neurolens Provider -- Advanced Prism Fitting

Prism Glasses: Align Your Eyes, Relieve Your Pain

Prism lenses correct how light enters your eyes to compensate for misalignment — eliminating double vision, chronic headaches, and eye strain without medication or surgery. As a certified Neurolens provider, we offer the most advanced contoured prism technology available.

Book Prism Lens EvaluationCall (714) 558-1182
Understanding Prism Lenses

What Are Prism Glasses?

Prism glasses contain a special wedge-shaped correction built into the lens. This prism bends light before it reaches your eye, shifting the position of the image so your brain can merge the pictures from both eyes into one.

Why Your Doctor Prescribes Prism

When your eyes are even slightly misaligned, the muscles around each eye must constantly work overtime to keep the images fused. This sustained effort strains the trigeminal nerve — the nerve that carries sensation across your head, face, and neck — producing chronic symptoms that standard glasses cannot address.

Prism lenses eliminate the need for that muscle effort by optically repositioning the image. Your eyes relax, the nerve calms, and symptoms like headaches, double vision, and neck tension resolve.

Prism is measured in prism diopters and can be prescribed in any direction — base-in, base-out, base-up, or base-down — depending on which way your eye deviates.

Double Vision (Diplopia)

See one image instead of two by redirecting light to the correct retinal position

Chronic Headaches

Stop the muscle strain that triggers trigeminal nerve-related head and face pain

Convergence Insufficiency

Help eyes converge properly for reading, screen work, and close-up tasks

Post-Concussion Vision

Restore binocular coordination disrupted by traumatic brain injury

Prism Lens Options

Three Types of Prism Lenses

From temporary diagnostics to the most advanced contoured prism available

Temporary

Fresnel Prism

  • Thin stick-on plastic applied to existing lenses
  • Used for diagnostic trials before permanent Rx
  • Quick to apply and adjust
  • Visible ridges reduce optical clarity
  • Not intended for long-term wear

Best for: initial diagnosis and prism amount calibration

Standard

Ground-In Prism

  • Built permanently into the lens material
  • Clear optics with no visible ridges
  • Durable for daily all-day wear
  • Fixed prism — same at all distances
  • May under- or over-correct at near vs. far

Best for: stable misalignment at a single distance

Most Advanced
Premium

Neurolens Contoured Prism

  • Patented variable prism across the lens
  • Different correction at near vs. far gaze
  • 93% symptom reduction in clinical studies
  • Ideal for digital device users
  • Custom-measured with eye-tracking device
Learn More About Neurolens
Conditions We Treat

Who Benefits from Prism Glasses?

Prism lenses are prescribed for a range of conditions where the eyes fail to align properly

Diplopia (Double Vision)

The hallmark indication for prism. When each eye sends a slightly different image to the brain, prism realigns them into one clear picture.

Binocular Vision Dysfunction

Subtle misalignment that standard exams miss. BVD causes headaches, dizziness, and reading difficulty even when each eye tests 20/20.

Convergence Insufficiency

Eyes struggle to turn inward for reading and close work, causing words to blur, jump, or double during sustained near tasks.

Strabismus

Visible eye turn (crossed eyes or wall eyes) that can be partially or fully corrected with prism to restore functional binocular vision.

Post-Concussion Vision Syndrome

Traumatic brain injury frequently disrupts the precise eye coordination needed for comfortable vision. Prism can restore it.

Digital Eye Strain from Misalignment

Screen time amplifies the effort of misaligned eyes. Prism relieves the underlying cause, not just the symptoms.

Comparison

Neurolens vs. Standard Prism Glasses

Not all prism is created equal. Here is how contoured prism technology compares to traditional prism lenses.

FeatureStandard PrismNeurolens Contoured Prism
Corrects eye misalignment
Eliminates double vision
Variable prism (near to far)
Measured with eye-tracking device
Optimized for digital screen use
Addresses trigeminal nerve strain
93% clinical symptom reduction
Available in any frame
Explore Neurolens Technology in Detail
What to Expect

The Prism Glasses Fitting Process

From evaluation to relief — a precise, comfortable experience

1

Binocular Vision Exam

A comprehensive evaluation beyond standard 20/20 testing. We measure how your eyes align, converge, and track together at multiple distances.

2

Neurolens Measurement

Our eye-tracking device maps your exact misalignment at near and far gaze in under 5 minutes. Painless and fully automated.

3

Custom Lens Fabrication

Your prism prescription is ground into your chosen frame. Neurolens patients receive contoured prism calibrated to their measurement data.

4

Fitting & Follow-Up

We verify the lenses, ensure proper fit, and schedule a follow-up to confirm your symptoms are resolving as expected.

Related Services

Comprehensive Vision Comfort Care

Neurolens

The most advanced contoured prism technology for headaches, neck pain, and eye strain from misalignment.

Learn More

Eye Strain Relief

Comprehensive evaluation and treatment for chronic eye fatigue and visual discomfort.

Learn More

Computer Vision Syndrome

Targeted solutions for screen-related visual stress, including specialized lens options.

Learn More

Digital Eye Strain

Protection strategies and corrective lenses for patients who spend hours on digital devices.

Learn More
Common Questions

Frequently Asked Questions About Prism Glasses

How much do prism glasses cost?
Standard ground-in prism lenses typically cost $200-$500 on top of your frame and base lens cost, depending on the prism strength and lens material. Neurolens contoured prism lenses, which offer variable correction at near and far distances, are typically $500-$800 above the frame cost. Many vision insurance plans cover part of the exam and basic lens materials. HSA/FSA funds can also be applied.
Does insurance cover prism glasses?
Most vision insurance plans cover the comprehensive eye exam and a portion of standard lens costs. The prism component itself may have an out-of-pocket cost depending on your plan. Medical insurance (not vision) may cover prism lenses when prescribed for a medical diagnosis like diplopia or strabismus. We verify your benefits before your appointment and help maximize your coverage.
How long does it take to adjust to prism glasses?
Most patients adapt to prism glasses within 3-7 days. During the first few days you may notice a slight sense of spatial distortion as your brain adjusts to the corrected image position. Full adaptation usually completes within 2-4 weeks. Neurolens contoured prism tends to adapt faster because it matches your natural alignment at every viewing distance rather than applying a single fixed correction.
Can prism glasses fix double vision permanently?
Prism glasses correct double vision while you wear them by redirecting light so both eyes receive a unified image. They do not cure the underlying misalignment. However, they eliminate the symptom effectively and are often the preferred long-term solution because they are non-invasive and adjustable. In some cases, vision therapy can strengthen the eye muscles enough to reduce or eliminate the need for prism over time.
Are prism glasses better than surgery for eye misalignment?
For most patients with mild to moderate misalignment, prism glasses are the first-line treatment because they are non-invasive, reversible, and adjustable. Strabismus surgery is typically reserved for large, cosmetically noticeable deviations or cases where prism correction would be impractically strong. Many patients with binocular vision dysfunction or convergence insufficiency respond well to prism lenses without ever needing surgery.
Can you get prism correction in contact lenses?
Prism correction is not available in standard contact lenses. The prism effect requires the lens to remain in a fixed orientation, and contacts rotate on the eye with each blink. Some specialty scleral lenses can incorporate small amounts of prism for specific cases, but this is rare. For most patients, prism glasses are the only practical option, and Neurolens glasses can be worn alongside contacts for vision correction.
What is the difference between Fresnel prism and ground-in prism?
Fresnel prism is a thin, flexible plastic sheet applied to the surface of existing glasses. It is used as a temporary diagnostic tool to determine the correct prism amount before committing to permanent lenses. Ground-in prism is built directly into the lens during manufacturing, producing a clearer, thinner, and more durable result. Neurolens takes this further with contoured prism that varies from near to far, which neither Fresnel nor standard ground-in prism can achieve.

See the Difference Prism Glasses Can Make

If headaches, double vision, or eye strain are affecting your daily life, a binocular vision evaluation could reveal the cause. Book your prism lens consultation today.

Book Your EvaluationCall (714) 558-1182
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