Tag Archives: online eye test

Online Amsler Grid Test for Macular Degeneration and Other Macular Disorders

AmslerGrid

The Amsler Grid test is a simple screening test used to assess the area in the back of the eye that is responsible for your most detailed vision (used for reading, seeing facial details etc).  This area is called the Macula and it is located in the center part of the retina (the nerve lining inside the eye – used for sight).

If there are any diseases or degenerations (like Macular Degeneration) that are affecting the Macula – then the Amsler grid test will usually provide early detection that there may be a problem going on.

HOW TO USE THE AMSLER GRID:

Position yourself at about 14-16 inches (about 40 cm) away from the grid.

If you have glasses that you use to read with – make sure you are looking thru the reading part of your glasses

Cover the left eye and use only your right eye to see the grid.

Stare at the white dot in the center of the grid with your uncovered eye.  Keep your eye focused on the dot.  Don’t move your eyes around to see any other part of the grid except for the white dot.  Use your side vision (peripheral vision) to see all the other parts of the grid.  “Glue” your sight to that white dot – don’t move your eye around at all.

While staring at the white dot:

  • Can you see all 4 corners of the grid?
  • Can you see all 4 sides of the grid?
  • Are any of the lines WAVY or MISSING or DISTORTED?   (All lines should look perfectly straight, all intersections should form right angles and all the squares should be the same size.)
  • Are ther any holes or “missing areas” in  the grid?

Then cover the right eye and repeat the steps with using the left eye to see the grid.

If you answered “YES” to any of the above questions then you need to see your eye doctor immediately. The eye doctor will examine the back of your eye and your macula VERY closely to determine if there are any medical issues causing these changes on the Amsler Grid test.  Below is an example of an ABNORMAL Amsler Grid Test (note the distortions in the lines):

AmslerGridAbnormal

If you have been told that you have macular degeneration or any other macular disorder, you should be doing the Amsler Grid test at home DAILY.

The Amsler Grid is a great way to monitor your macular health but you should always have yearly eye examinations with dilation when dictated by your doctor.

If you are in need of your annual eye exam in the Fort Lauderdale area – please call Fort Lauderdale Eye Care and Eyewear office at 954-763-2842 for an appointment with Dr Dawn Bearden (Our Optometrist) OR you can request an appointment with our Eye Doctor ONLINE at www.FLEyecareEyewear.com

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Online Eye Test: Find Your Blind Spot In Each Eye – From Fort Lauderdale Eye Care & Eyewear

Everyone has a BLIND SPOT in their vision of each eye.

Take this FUN test to check it out for yourself !!

Look at graphic of the cross and the circle at the top of this post.

Sit at your computer with your nose pointing in between the cross and the black circle.

Cover your LEFT eye and stare at the cross with your RIGHT eye.

Now SLOWLY move towards the computer screen while still staring at the cross with your RIGHT eye.

At somewhere around 10-14 inches from the computer screen – the black circle will disappear and the area where the black circle was…will now be all white – this is your BLIND SPOT.

If you move closer to the screen or farther away –  the circle will re-appear.  At just the right distance – the circle will disappear.

Now try the OTHER eye…but this time cover your RIGHT eye and look at the CIRCLE with your LEFT eye…..move closer and you will see that the CROSS now disappears!!

Your eye has an inner lining which is made of a sheet of nerves.  This sheet of nerves is responsible for your vision and what you see and it is called the RETINA.  There is a “hole” in the sheet where the Optic Nerve enters the eye.  This area is called the Optic Nerve Head.

Photoreceptors are cells in the retina that detect light and allow you to perceive “vision”.  On the optic nerve head there are NO photoreceptors.  Thus, there is no light or vision detected at this spot in the retina.  This is your “Blind Spot”.  Every eye has a blind spot….your blind spot in your right eye is slightly on your right and your blind spot in your left eye is slightly on your left.

Your brain automatically “fills in” the blind spot area for you…..

Now try it AGAIN with the above green and yellow graphic….but this time you will notice that when you move to just the right distance , the circle will disappear and your brain will fill in your blind spot WITH YELLOW when you are looking with your right eye (left eye covered)….and your brain will fill in your blind spot WITH GREEN when you are looking with your left eye (right eye covered)!!  Your brain automatically matches the surrounding colors when it “fills in” visual information for you.

Cool huh??

Your brain can even “fill in” missing information for you…..in the above graphic, you’ll notice that when you cover your left eye and look at the cross with your right eye – the brain will “fill in” your blind spot (the area where the circle is).  You will see that your brain fills in the line for you.  Keep looking at the cross – don’t look back at the circle – or you will will see the circle again.

Try it AGAIN with the above graphic while looking at the cross with your right eye (cover your left eye) – your brain will put a red circle where your blindspot is….it is “filling in” the “missing information” !!

Amazing.

If you need an eye exam in the Fort Lauderdale area – give us a call at 954-763-2842 or request an appointment ONLINE at www.FLEyecareEyewear.com   Our Optometrist is Dr Dawn Bearden – she has been an eye doctor for over 17 years!

 

Graphics fromSerendip….check out their very informative  website at http://serendip.brynmawr.edu/bb/blindspot1.html

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