Skip to main content

COVID-19 Update: We are now open for eye exams and dispensing of glasses and contact lenses and are following all Ministry of Health guidelines. Our patient and staff safety is our utmost priority.

Request Appointment

neuro_conditions

What Is Kaleidoscope Vision 1280×480

Home »

What Is Kaleidoscope Vision?

Kaleidoscope vision is not a stand-alone condition, but rather a visual symptom of migraines or conditions like a stroke or brain injury. A person experiencing kaleidoscope vision may perceive their visual field to be fractured, vividly colored, or scrambled — similar to looking through a kaleidoscope.

Visual symptoms like kaleidoscope vision can affect one or both eyes and can occur with or without a headache. In many cases, visual auras precede headaches and migraines.

Episodes of kaleidoscope vision usually last between 10-30 minutes, but can persist up to an hour.

What Can Cause Kaleidoscope Vision?

The most common cause of kaleidoscope vision is an ocular migraine, which is a migraine accompanied by visual symptoms. About 20% of people who suffer from migraines experience some type of aura, also known as a sensory disturbance. Other forms of auras include tingling in the hands or face, muscle weakness, and difficulty speaking.

Visual Symptoms of a Migraine

Kaleidoscope vision is a component of only one type of visual aura. Understanding the other types of visual disturbances that may accompany a migraine can provide more clarity.

The 3 types of visual auras are:

1- Positive Visual Aura

This is when a person sees something that isn’t actually there. For example, a person experiencing a positive aura may see zig-zag or squiggly lines, flashes, stars, or dots. These perceived shapes may be colorful and move around the visual field or grow larger. A visual hallucination is also considered a positive aura.

2- Negative Visual Aura

This is characterized by any loss of vision during a migraine, whether partial or total. With negative auras, one may experience blind spots, loss of peripheral vision, or a brief period of total vision loss.

3- Altered Visual Aura

This type of aura distorts what you see without adding or subtracting anything. For example, one may perceive a straight line as wavy or blurred. Kaleidoscope vision is considered an altered aura.

Other forms of altered aura include misperceiving the size of an object (seeing it as larger or smaller than it really is), distorted distance perception, and distorted or absence of color.

If you experience any of the above symptoms with a migraine, seek medical attention to rule out more serious conditions, like retinal tearing or stroke.

What Causes an Ocular Migraine?

It is difficult to pinpoint the exact cause of ocular migraines, but research suggests that structural abnormalities of the visual cortex could play a role.

Another possible trigger of ocular migraines is visual dysfunction. There are several types of visual dysfunction that can trigger migraines, but a common one is binocular visual dysfunction (BVD). A binocular vision problem refers to a misalignment of the eyes.

Ordinarily, our brain receives an image from each eye and unifies those images to make one clear picture. This can only occur efficiently when the eyes are properly aligned. With BVD, the eyes and brain struggle to form a clear and unified image, which can cause the eyes to become overworked and strained. This high amount of ocular stress can produce painful physical symptoms, like a migraine with aura.

Reducing the amount of stress your eyes endure can lessen the frequency or intensity of migraines, visual auras, and their debilitating symptoms.

How A Neuro-Optometrist Can Help

If you or a loved one is experiencing ocular migraines, the first step is to schedule a functional visual evaluation. By assessing your vision, we can narrow down the cause of your symptoms and determine if visual problems could be amplifying them.

If a visual problem is detected, Dr. Garzon will create a custom neuro-optometric rehabilitation program to strengthen your visual system and correct the problem at its source.

Neuro-optometric rehabilitation therapy can improve visual skills like eye movement, eye tracking, and eye teaming. This specialized form of vision therapy trains the eyes and brain to work in unison, increasing the efficiency of the visual system.

We may also recommend certain changes, such as rethinking your workspace, that can relieve some eye strain and stress, which may lessen the number of migraines you experience.

Start your journey to healing and call Neuro-Optometry Center at Clarity Optometry to schedule a functional visual evaluation today.

Our practice serves patients from Hamilton, Ancaster, The Greater Hamiton Area, and , Ontario and surrounding communities.

Request A Functional Visual Exam
Find Out How We Can Help You! 905-692-EYES

Sensitivity To Light And Your Vision

Home »

Sensitivity To Light And Your Vision

Experiencing sensitivity to light — a condition called photophobia — is a symptom of a multitude of conditions and disorders. In its mildest form, photophobia causes discomfort in the presence of bright light. More severe cases of photophobia can produce eye pain, headaches, nausea, and dizziness even in a dimly lit environment.

Those who are light-sensitive can experience discomfort from any source of light, whether natural or artificial. A photophobic individual may feel the need to blink frequently or close their eyes in bright indoor or outdoor environments.

In some cases, light sensitivity may be caused by a problem with the visual system. That’s where a neuro-optometrist can help. If you suspect you have photophobia or are experiencing eye discomfort in bright or dim settings, call Neuro-Optometry Center at Clarity Optometry for a functional visual evaluation.

What Can Cause Photophobia?

light sensetive 500

Eye conditions and diseases that can trigger photophobia include:

  • Dry eye
  • Iritis or uveitis
  • Eye burns
  • Glaucoma
  • Corneal abrasion
  • Eye surgery
  • Blepharospasm
  • Keratitis
  • Conjunctivitis (pink eye)
  • Retinal damage
  • Cataracts
  • Dilated pupils

Light sensitivity can also accompany:

  • Headaches or migraines
  • Brain injury and concussions
  • Meningitis
  • The use of certain drugs
  • Bacterial and viral infections

The Visual System and Photophobia

All cases of photophobia should be addressed by an eye care professional to rule out an underlying inflammatory condition, infection, or concussion. If that has been done yet symptoms persist, there could be a problem with visual functioning — the way the eyes and visual system function together.

If the connection between the eye’s light-detecting cells and the optical nerve becomes disrupted, it can result in light sensitivity.

Furthermore, if the eyes don’t work in unison with each other or don’t communicate with the brain efficiently, this could strain the visual system and lead to photophobia.

Post-concussion photophobia can stem from the dysfunctional operation of 1 or more of the 4 regions of the brain.

  1. The thalamus filters all visual information that enters the brain. If the brain isn’t sending enough oxygen to the thalamus, which can occur after a traumatic brain injury (TBI), the thalamus may not perform efficiently, causing the brain to be overwhelmed by an influx of visual stimuli — such as bright light.
  2. The autonomic nervous system (ANS) regulates things like breathing, heartbeat, blood pressure, and more. If the ANS becomes dysregulated, it can cause the pupils to overly dilate, letting in too much light for the visual system to process.
  3. A malfunctioning vestibular system can also cause photophobia. This system consists of the inner ear, eyes, and sensory detectors in our limbs to regulate balance and motion. If there is a discrepancy between either of those areas, the brain may compensate by increasing sensitivity in one of the areas — such as the eyes.
  4. The superior colliculus in the midbrain manages visual mapping as well as coordination with other senses. An imbalance in this area can cause vision and other senses to become hypersensitized.

How a Neuro-Optometrist Can Help

A functional visual evaluation with Dr. Garzon will determine if a problem with the visual system is causing or contributing to your photophobia.

If visual dysfunction is detected, we may recommend a personalized neuro-optometric rehabilitation program to treat the underlying cause of your symptoms. This specialized form of therapy involves the use of various filters and prisms, as well as visual exercises to strengthen the eye-brain connection.

If you or a loved one suffers from photophobia, call Neuro-Optometry Center at Clarity Optometry to schedule a functional visual evaluation and start your journey towards healing.

Our practice serves patients from Hamilton, Ancaster, The Greater Hamiton Area, and , Ontario and surrounding communities.

References:

Request A Functional Visual Exam
Find Out How We Can Help You! 905-692-EYES