Even More Fun Optical Illusions

Published on
January 5, 2022

AEC-values-001Artboard 2

There’s a seemingly unending number of optical illusions that play on the limitations, and the tendencies, of our visual systems. Let’s explore a few more.

The Expanding Heart

In the above image, the blakc heart looks like it’s constantly expanding! However, it never seems to get bigger, and it’s not a looped gif, so what’s going on?

This illusion plays on the fact that our eyes are constantly moving (if you don’t believe us, ask someone to track your eye movements for a bit.)

If we simply saw everything in real time, since our eyes constantly move, we’d have a hard time seeing anything comprehensible. To compensate for this, the brain “edits” all this compiled input into an image we can properly see, similar to how a good movie editor can seamlessly edit scenes together. Our brains also rely on the context of an object to effectively determine what it sees.

In the illusion here, the lined background is used by the brain as a reference point to orient the heart. Between the lines, and our eyes’ constant movement, the heart thus appears to be expanding.

The Summer Spin

Another image that provides the illusion of movement, the spirals above appear to be slowly spinning by taking advantage of a phenomena known as apparent motion.

It takes one tenth of a second for signals from the retina to reach the brain, and if there is more contrast in what the brain is seeing, the faster the transmission. (For example, a higher contrast signal arrives one twentieth of a second faster than a low-contrast one.) So in this illusion, the contrast gradients are arranged in a way that tricks the brain into believing there is motion, as the high contrast parts of the image arrive faster than the rest.

Impossible Shapes

There are several different images that illustrate this phenomenon, but they all fall into the same general group of impossible shapes. The image depicts an object which, at first glance, appears realistic, but upon closer inspection, its mind twisting nature becomes clear as we realize that this shape could never exist in a real, 3D form.

This illusion is related to the Gestalt laws, which describe how we see and interpret the world around us, with everything being parts of a single image. So we see, in complex scenes, objects against a background, and those objects themselves are made of parts, which in turn are made of smaller parts.

According to one of these Gestalt laws, when we see ambiguous or complex objects, the brain tries to make them look as simple as it can. That is why our brain tries to ignore the impossibility of this shape, enabling us to process the image, and once we force it to acknowledge the impossibility of the shape, it becomes an eye-twisting anomaly.

There is always more to be learned about the visual system, and illusions like these always demonstrate that what we see might not always be what’s actually in front of us.

 

Testimonials


  • 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.

Blog

strabismus_esotropia_large-e1627986452983

Can lazy eye be treated for adults?

Amblyopia is very common in adults, with a US prevalence ranging between 1% and 4%. Lazy eye or amblyopia can […]

Read More
pexels-anna-shvets-5231265

Hands-Free Magnification: Telescopic, Microscopic, And Prismatic Low Vision Glasses

It is estimated that 12 million Americans over the age of 40 have some form of vision impairment. Magnification devices […]

Read More
children-drawing-together-classroom (1)

Binocular vision and why two eyes need to work together

A significant percentage at least 10% to 20% of the population suffers from binocular vision dysfunction, yet almost no one […]

Read More
see all blogs

Contact Us To Amplify Your EyeCare

Amplify EyeCare of Greater Long Beach Logo

Working Hours

Monday & Wednesday
9:00AM–6:00PM

Tuesday & Thursday
8:00AM–5:00PM

Saturday
By appointment only

Friday & Sunday
Closed

 

 

Location
16816 Clark Ave, Bellflower, CA 90706, United States
Fax
(562) 867-8719
Website Accessibility Policy
Safety protocols page
privacy policy
Cancellation Policy
For Patients
appointment
Call Us
Referrals
Assessments
For Patients
appointment
Call Us
Referrals
Assessments
eyefile-adduserphone-handsetcalendar-fullarrow-uparrow-right linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram