JJ Van Zyl Optometrists

13/12/2025

Did you manage to see the hidden image of the "Compas Rose" stereogram? Let us know in the comments below.

13/12/2025

How to view a 3D Stereogram
Take your finger for example. Bring it close to your eyes. The idea is to make your eyes look behind the finger and, instead of one finger, you will want to see 2 fingers. This is exactly what we want to achieve: to move the focus of the eyes behind the actual image. When looking at objects really close its easy to have the eyes out of focus. But, a stereogram can be best seen at about 40 cm of your eyes, that's why its much harder to move the focus away from actual stereogram.

If you're not trained to look at stereograms, this might take you some time. First time I've looked at a stereogram it took me like an hour to finally be able to focus the eyes correctly to see the 3D image.

Other techniques to see stereograms:

Bring the stereogram image really close to your eyes (until you touch it with your nose). At this distance your eyes cannot focus on the image and they look somewhere behind the image. Now, slowly push the image away from you, while trying to keep the eyes off focus. At some point you will see the hidden image.

Another method is to take an object and put it behind the image (about half of meter behind it). Now, focus on the object behind the image while keeping the eyes looking at the image.

13/12/2025

Om van MY Diabetes ontslae te raak - Persoonlik, vir MY,
het dié volgende DIÉ beste gewerk :
1) As jy nie kan slaap nie - STAAN op & ry 'n trap fiets!
2) Maak HIIT ( High intensity interval training) deel van jou oefen program
3) Probeer " Intermittent fasting" - Drink NET water tot 12:00
4) Bord kos met " Kleur" in jou bord!
5) Beperk Alkohol
EN... Sjokolade...😳 😩

Here is what the latest research says about how diet can help prevent type 2 diabetes.

12/12/2025

12/12/2025

What a journey it has been since opening our doors in the Helderberg back in 2004. Each year reminds us of the trust, support, and relationships that make this practice more than just a place of eye care—it’s a family.
Thank you to every patient, colleague, and friend who has been part of this story.

11/12/2025

We have launched a new health app that we would like our patients to try out and let us know what they think. Please follow this link: https://visionary-health-e44f73bf.base44.app and let us know in the comments below what you think.

10/12/2025

Please note: We will be closing early today for our year-end function.

06/12/2025

Het jy kinders of klein kinders, wat bril dra?
EN, dalk elke jaar of twéé, 'n sterker bril moet kry?
WEL, NOU, is DIÉ tyd om voorkomende oogsorg te dóén!
Want, anders het jou kinders of klein kinders dalk groot oog risiko's op hul ou dag!
Skakel JJ van Zyl Oogkundiges vir meer inligting oor ons Bysiendheid voorkomings program en hoe ons kontak lense, die kontak lense gebruik om Miopia risiko's te verminder

Don't let the weather stop outdoor time for kids. More time outdoors and less time on near activities can help prevent . Low-dose atropine and peripheral defocusing contact lenses are effective in slowing myopic progression. https://ow.ly/Y4yh50Xv9Wg

04/12/2025

HIERDIE lense werk uitstekend vir Bysiendheid stabilisasie!

01/12/2025

"Swans Reflecting Elephants" by Salvador Dalí

In 1937, the Spanish surrealist painter Salvador Dalí created his work "Swans Reflecting Elephants." A specialist in hidden messages, Dalí tests our gaze through enigmatic works!

The heads and necks of the swans form the trunks of the elephants, their wings half-spread depict their large ears. Finally, the tree trunks, in turn, shape the bodies and legs of the elephants!

Furthermore, with a touch of imagination, the shape of the largest cloud seems to suggest the silhouette of the man, creating a mirroring effect.

29/11/2025

This is called an autostereogram. Here are some tips to help with the parallel viewing method:

1. Concentrate at a point in the middle of the 2D picture. Try not to get distracted by looking around the picture.

2. Let your eyes relax and look through the picture rather than at it. You want to look at a point behind the picture. You will notice that the picture will go slightly out of focus. This is normal, and in fact, this is what you want to happen.

If you didn’t manage it the first time round, don’t despair. Take a break, relax your eyes, and then try again! You are unlikely to be able to see the 3D pictures if you have poor visual function or a Binocular Vision Disorder.

Comment down below if you spot the dolphin/s?