Tag: phoria

Is a Phoria the Same as a Squint (Strabismus?)

Phorias and strabismus are both eye turns. They give you the feeling of having misdirected gaze. However strabismus can usually be detected by the human eye and although it might be intermittent, it will likely recur in the same direction to the same strength. A person will be said to have a right eye turn or a an up eye turn. The treatment is to align the eyes to attain binocular vision. This can be achieved with prism, or helped through vision therapy or behavioural optometry.

Phorias are more complex. A phoria is an eye turn or misdirected eye in any of the 8 compass points. And both eyes could have the same pattern, a different pattern or only one eye could be affected. When you add 8 to the possibility of having 0 phoria in one eye you get what is officially called the 9 cardinal points of gaze. When you do the maths and work out how many permutations there are for two eyes with nine points of gaze, you get to the number 81! Yes, there are 81 permutations of phoria. As an example of someone with phorias that disturb me, I have found that I have 18 permutations. So I have glasses made with small amounts of prism in one or two directions to treat all of these. It does make life more complicated but I get used to reading the light, knowing my needs, and it is worth it!

Help, I Have Four Phorias!

What is a phoria?

A phoria is a latent (hidden) eye deviation. The eyes appear to be straight, but when covering an eye and breaking fusion, the eyes assume a position away from normal alignment. Most people have a very small phoria if tested, but a large phoria makes it hard to keep the eyes aligned. This could occur as a result of being stressed, tired and it can be triggered by changes in the light.

If a large amount of phoria exists, your eyes are will not rest on the subject you are focusing on. Your gaze will move elsewhere. Keeping both eyes fixated on your chosen subject requires an effort by you. 

However, a sensitive person can be affected by a small phoria. People not sensitive may be able to ignore any small amounts of distortion but sensitive people can’t. Any lack of congruency, any deviation from the whole is a problem for the sensitive person.

I Have Four of Them!

UP OUT (uncorrected) – makes me feel like the right side of my head is fuzzy and it affects the nerves in my shoulders and arms. I feel pulled away from what I am trying to think about.

OUT (uncorrected) – makes me feel that I can’t think clearly at all. I don’t want to think about anything outside of my immediate experience. Everything feels too much.

IN (uncorrected) – makes me feel trapped like I can’t see out. I feel like I can’t move. I am inflexible.

IN OUT (uncorrected) makes me feel low hearted and negative. My body aches especially the muscles in my legs, and my knees feel suddenly weak.

All I Need is Prisms

How simple can that be? Fixing these problems with just a pair of glasses? But it works. All you need is a prism sending your gaze back in the direction you intended it to be in. Phorias could play a part in depression, anxiety, fatigue, dyspraxia, ADHD and more . . .

If you would like help looking to see if you or your child have a hidden phoria, please get in touch below. One simple appointment, one pair of glasses and you could feel like you have your life back, or you could know what life is for the first time!

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