How To Self Test For Astigmatism [Red Dot Sight Use]

  • Post author:
  • Post category:Blog Content
  • Reading time:4 mins read

Shooters across the board have different levels of astigmatism when using red dot sights. The dot doesn't look clean and here is how to self-test for astigmatism at home.

You can try:

  • Astigmatic Mirror 
  • Astigmatic Dial
shooters with astigmatism see this

Ways To Test

Relax your eye first, and try this free online tests to help you determine whether you have astigmatism or not.

This DOES NOT replace comprehensive eye exams, and we highly recommend scheduling an eye doctor near you

Astigmatic Mirror

  • Test each eye separately
  • Then test both eyes.
  • Maintain sufficient distance from your testing screen.
  • Note abnormalities in depth and intensity of darkness.
astigmatic mirror

Someone with astigmatism will see:

  • Some of the lines on the image appear darker in certain directions than in others
  • more horizontal lines more clearly and spaced wider apart than they will be able to see vertically oriented lines

Astigmatic Dial

  • With a 14-inch screen, position yourself about 74 centimeters from the screen
  • With a 15-inch screen, position yourself about 1 meter from the screen
  • With a 17-inch screen, position yourself about 1.5 meters from the screen
  • With a 20-inch screen, position yourself 2.2 meters from the screen
  1. Cover one eye with your hand without pressing on the eyelid.
  2. Look at the image and pay attention to how the lines appear.
  3. If some lines appear lighter and some appear darker, you likely have astigmatism.
  4. Repeat the test for both eyes.


Red Dot Still Looks Blurry - What Now?

We have a guide on our site that shares 5 tips to fix a fuzzy red dot, but nothing is more effective than correcting the vision first.

Astigmatism is a major cause of blurry vision and other associated eye symptoms. Maybe you have never had a vision problem until now, or you don't notice it day to day unless going through a vision exam.

Your eye doctor will run some tests on tonometry, ophthalmoscopy or perform a slit lamp examination to rule out these potential causes of distorted vision.

Several conditions can lead to visual disturbances. Other refractive errors such as nearsightedness and farsightedness could be the culprit. Retinopathy, macular degeneration, optic neuritis, cataracts, and retinitis can all cause blurred vision.

Treatment Options

eye shape astigmatism

Red dot sight or holographic sight reticle-looking blurry is very annoying for shooters and it also affects how they go about their day doing work, driving, taking notes in class...etc

"I spent $650 on an high end optic, but the dot still looks blurry while indoor and outdoor! What do I do now?"

Some shooters are always looking for better optics, but the truth is to fix their poor eye sights first.

It's the best way to fight against astigmatism when looking through an optic.

There is a number of treatments available:

  • Wear glasses
  • Orthokeratology
  • Photorefractive keratectomy

Please contact your local eye doctor for more information.