Color Fixation Sticks – A Great Vision Screening Tool for Ocular Motility Testing

There are many things that affect our ability to see color. In some cases, it doesn’t matter if the red you see is the same shade another sees. A barn is barn, right? But for those who work in an industry where color evaluation is part of the job, it’s important. Let’s start with a bit of anatomy to help you understand how color fixation sticks can actually make a difference in testing ocular motility.

Looking Inside an Eye

The process of seeing color is quite amazing in human eye. When light enters through the eye’s cornea, the lens puts the object into focus and creates an inverted image at the back of the eye on the retina. Rods can’t distinguish colors. Their job is to detect changes in light and adapt the eye to help us see, even when it’s dark. Cones allow us see color. There are three kinds, each responsible for seeing red, green or blue, respectively. RGB – the three primary colors that combine to create the multitude of color beauty we see in our world.

Rod and cone cells are sprinkled all over the retina, so most of our eye is able to see color and navigate through changing light conditions. However, there’s a small dimple in the back, called the fovea, which only contains cones. The fovea is our specialized area for color vision. Once the eye has done its job to capture light and color data, it sends everything along the optic nerve to the brain for analysis. Within a split second, the brain reports what we are seeing. Remarkable, right! Of course, there’s a lot that can go wrong.  

Color Fixation Sticks

What Environmental Impacts Are on Color Judgment?

We must understand the influence of light on color perception, be aware that our eyes can be tricked, and we must utilize the workarounds created for us by color science engineers.

·         A tired eye can’t make good color judgments, especially after being over-stimulated by a strong color. Rest your eyes before viewing, view quickly, and rest again before the next evaluation.

·         Always be aware of your environment. Surrounding colors can make a color look different. When judging color, use a light booth to ensure that nothing is clouding your view.

·         Recognize the type of light that is illuminating your color. A light booth can help you control the lighting conditions and ensure consistency.

·         Use a color measurement instrument to capture color data. A colorimeter or spectrophotometer simply measures the reflected light from the target sample area. It doesn’t even know surrounding colors exist.

Thus, the color fixation sticks got introduced to the eye care industry. Color fixation sticks are another time-saving visual testing tool ideally used for ocular motility and confrontation visual fields. The entire color fixation sticks include five colors (White, Red, Blue, Green, and Yellow) and a handy pocket leather case to carry safely wherever you go.

Originally manufactured by Gulden Ophthalmic and sold by Foresight International Group, these set of five color fixation sticks were designed with par excellence and exported near customers via a safe passage of shipping network. At Foresight International, we stock a great number of ophthalmic equipment ready to meet every need of patient care. Get in touch quickly and know more about our greatly helping vision screening tool – Color Fixation Sticks – more at Foresight International! Contact right away!