Blurriness, Reduced Contrast Sensitivity, Glare Sensitivity, and Night Blindness

The following article addresses the following types of low vision deficits: blurred vision, reduced contrast sensitivity, glare sensitivity, and the problems of “night-blindness”.

Blurriness, Reduced Contrast Sensitivity, Glare Sensitivity, and Night Blindness in Bellflower

In many cases symptoms such as blurred vision, night blindness and reduced color contrast are caused by degenerative diseases such as diabetic retinopathy, retinitis pigmentosa, inoperable cataracts, glaucoma, and age-related macular degeneration.  However due to the complexity of the visual system there are many other potential causes for these symptoms, which is why we always recommend a comprehensive eye exam to assess the cause of those symptoms. When scheduling the eye exam, make sure to discuss the symptoms and when they occur with your optometrist. 

If you are experiencing severe symptoms we recommend visiting a low vision optometrist who not only has the capabilities to detect the condition but also to implement appropriate interventions to maximize remaining eyesight and enable an active life. Interventions include the use of specialty devices and rehabilitation therapy.

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What Are The Causes And Challenges Of Blurred Vision, Reduced Contrast Sensitivity, Glare Sensitivity, and Night Blindness?

All of these types of low vision deficits may be caused by a variety of factors, including diabetic retinopathy, macular degeneration, inoperable cataracts, glaucoma, refraction errors of the eye, or traumatic injury.

Due to the complexity of the visual system, there are a wide range of conditions that may cause these symptoms including: 

  • Optic neuritis
  • Stroke
  • Retinal Detachment 
  • Macular Hole 
  • Temporal arteritis
  • Uveitis
  • Optic Nerve Disorders/Multiple Sclerosis
  • Traumatic Brain Injury 
  • Usher Syndrome
  • Nystagmus 

Less severe causes: 

  • Corneal abrasion 
  • Ocular Migraine 
  • Conjunctivitis/Pink Eye
  • Iritis 
  • Keratitis
  • Complications after LASIK or refractive surgery 
  • Vitamin A deficiency 
  • High Myopia or Astigmatism

Blurred Vision

  • How It Presents: Manifests as out of focus vision, regardless of the distance.

How It Can Impact You: It isn’t always easy to detect, and may occur so gradually that the person doesn’t realize the deficiency. This is why routine testing is critical to ensure early detection and intervention before the condition worsens. Blurry eyesight prevents people from being able to focus on objects, regardless of distance.

  • Recommendations: Speak with a low vision optometrist to discuss vision rehabilitation that might aid this condition.

Reduced Color/Contrast Sensitivity

  • How It Presents: This deficit affects the quality of images, which may appear hazy or cloudy. Some colors are more suitable for those with color sensitivities.Contrast reflects the ability to discern differences between light and dark areas.  Effective usage of color enhances the ability to discern contrast.
  • How It Can Impact You: It can affect safety, since it may be difficult to detect certain colors or contrast found on warnings or other signs that are designed to indicate possible hazards. 
  • Recommendations: Use bright, solid, colors that reflect light effectively and are more visible, for improved safety and convenience. Colors can provide safety cues in hazardous environments or in the home, as well as enhancing convenience with various systems of color-coding.

Sensitivity to Light

  • How it Presents: Brain injury is often accompanied by increased light sensitivity and a general inability to tolerate glare. Photophobia, or sensitivity to light, can be exacerbated by certain light sources, such as bright sunlight and fluorescent lighting. Recent studies suggest that LCD screens (such as from computers or smartphone devices) can be particularly bothersome following a concussion. 
  • How It Can Impact You: Living with discomfort/pain from lighting and glare can be difficult and inconvenient. 
  • Recommendations: Using full spectrum lighting or lighting with a high Color Rendering Index (CRI) to provide effective illumination that doesn’t cause eye strain.

Night Blindness

  • How It Presents: Difficulty in seeing faces or objects at nighttime or under low light conditions. Additional signs of impaired night vision include: complete blindness in dark conditions, the appearance of “halos” and “streaks” when looking at light, light and glare sensitivity or discomfort, blurriness in poorly lit environments or nighttime, and difficulty in driving.
  • How It Can Impact You: The inability to see under low-lit conditions can make life difficult and dangerous. The dangers of people driving with visual impairment from night-blindness is apparent. Additional hazards include the added likelihood of tripping and sustaining injurious falls in the home under poorly lit conditions.
  • Recommendations:There are small but effective hand-held lamps available today that can be used to assist people under low light conditions. Drivers can have their friends and families drive them places during nighttime hours. 

It is imperative that people with night-blindness utilize full spectrum lighting and lighting with a high Color Rendering Index (CRI) throughout their home to ensure a safe environment. Lighting should be strategically placed to maximize illumination. Use timers to ensure that the lighting comes on at the same time everyday.

What Does A Low Vision Eye Exam Look Like?

During the exam, a low level optometrist will inquire about the patient's medical history, the nature of the visual difficulties, and how it impacts daily life. There are many tests for visual acuity and visual field to assist in a diagnosis. A thorough interview and physical exam allows the doctor to formulate a vision care plan for living with this condition.

What Interventions Are Available?

Low vision is irreversible. Routine eye exams are important for detecting and monitoring complications so that early interventions can be implemented. Low vision optometrists help patients maximize remaining eyesight by incorporating visual aids (both optical and non-optical), assistive technologies, and rehabilitation therapy. 

  • Optical devices: Specialty glasses, prisms, filters, telescopic devices, binoculars, and other visual devices are used to improve deficits.  Using tinted glasses and anti reflective lenses are a highly effective, inexpensive, way to improve contrast sensitivity.
  • Magnifiers: There are many types of magnifiers available, from small hand-held models, to powerful electronic magnifiers. CCTV devices project magnified images on a monitor. They are useful for color contrast sensitivity.
  • Lighting: Proper lighting options should be full spectrum or high in the Color Rendering Index (CRI), which makes it easier to see colors and improve color contrast sensitivity. 
  • Rehabilitation: Rehabilitation therapy teaches strategies and techniques for maximizing remaining eyesight and learning skills which enable people to lead normal lives. Treatment may involve co-management with an occupational therapist. 
  • Assistive technologies: These include speech-to-text, text-to-speech, voice activation software, software for contrast adjustment, and computer screen readers.

Proper use of digital devices: By properly using settings on hardware devices, people can benefit from the appropriate level of brightness, contrast, lighting, and magnification that matches their needs.

You Can Enjoy A High-Quality Of Life

Difficulty with contrast, glare and light sensitivity, and night blindness can cause major distress and difficulties to a patients life. Oftentime,  standard interventions such as glasses and contact lenses aren't effective. Thanks to the many available interventions today to deal with visual deficits, people are engaging in daily activities and living enjoyable lives. 

If you are experiencing symptoms of blurry vision, night blindness, glare, or contrast sensitivity, schedule an exam with our low vision optometrist to find out more about the many available options for improved living.

Common Questions

Using a good antiglare coating will help reduce glare. Some are formulated better than others which will determine how much glare is reduced. There are varying models and levels of antiglare from a variety of companies. Do a little research and find out which one will work for you.
Blurriness, Reduced Contrast Sensitivity, Glare Sensitivity, and Night Blindness
Dr. Ikeda cartoon

Blurriness, Reduced Contrast Sensitivity, Glare Sensitivity, and Night Blindness

In many cases symptoms such as blurred vision, night blindness and reduced color contrast are caused by degenerative diseases such as diabetic retinopathy, retinitis pigmentosa, inoperable cataracts, glaucoma, and age-related macular degeneration.  However due to the complexity of the visual system there are many other potential causes for these symptoms, which is why we always recommend a low vision eye exam to assess the cause of those symptoms. When scheduling the eye exam, make sure to discuss the symptoms and when they occur with our low vision optometrist. Patients with low vision visit our clinic from all over California, and we are proud to be a leading provider of low vision services for patients from Bellflower, Long Beach, Lakewood, and Los Angeles.


I haven't actually used the optometrist side, so my review is limited to the vision therapy offered.  This office was recommended by my occupational therapist for the treatment of my double vision following a stroke.

Claire A.

Love this location. I had a brain injury accident from day one one. All the team make you feel you still important and hope in the horizon after when the medical system fell you miserably. Dr. Ikeda very professional and very understanding about your issue. Two tombs up.

Jim K.

My husband and I were immediately impressed with Dr Ikeda. I was hit by a car while cycling which caused broken bones and three brain injuries. The brain injuries caused double vision. Dr. Ikeda examined my eyes and got me started on vision therapy with his occupational therapist who specializes in vision therapy.  She (Chris) is absolutely great.  I am impressed with the array of tools used to help recover my binocular vision.  I am doing things I never thought were possible (balance boards etc).  Chris pushes me and keeps me motivated. I really enjoy my sessions with her.  The office staff is always friendly and they have a wonderful appointment reminder tool that makes it easy to keep my calendar up to date. I am happy the rehab center at Little Co. of Mary recommended them!!

Teresa S.

The Vision Therapy is handled in a separate office through a different door from the shared waiting room. Chris, the vision therapist, has a wide and varied assortment of tools, equipment and resources to best evaluate and treat most vision issues. After just a few visits, my double vision became easier to control, using exercises developed during the therapy process. It was time well-spent.

Joe M.

I have been coming here since I can remember. I love it here. The staff is so amazing and nice. They explain everything they gonna do and never make you feel rushed. Dr. Ikeda has always been my doctor and I would never want another one. He is the doctor for my whole family and is always asking how everyone is doing. I am also so crazy about picking out my frames and have to try so many and each person who helps me take the time and lets me try them all on. I would never want to go anywhere else! I definitely would recommend this office to anyone looking for a great eye doctor.

Kayla W.

This is not for the eye exam but for the frames selection portion. I brought my prescription from Kaiser here with my VSP insurance. The reception staff was very polite and professional.  Manny helped me to pick out frames and explain my coverage.  Very helpful and patient not like the individual at the other place I rated here on Yelp.  I was running late and he still helped me and was not bothered at all.  I am so glad I came here ..........very pleased.

Very professional staff and pleasant.

Daniel G.
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