September 4, 2013
Why did I just say no? Because the eye is full of fluid. It’s very very difficult and unlikely to have excess fluid pressure that you can feel in your eye which means it’s very very unlikely there’s more fluid in the eye. If that were to ever occur your vision would also be affected. But let me explain what changes can happen around the eye to make you feel “eye pressure.”
First, your body and the effects of anything on your body can’t compress or expand fluid. It’s just not going to happen. But air can be compressed or decompressed (there’s no air in the eye). So we need to figure out where that air is and it’s usually behind the eyes in the sinuses. I’m not going to talk about the pressure you might feel in your ears but that also has to do with compressing or decompressing air as well.
So why do the sinuses have air and how does that occasionally cause this referred pain issue when you say you have “eye pressure?” There are many reasons why air is there and I’ll leave it to the article below to explain that. Inside the sinuses (and the frontal sinus right behind the eyes) there is also mucous tissue. I’m sure everyone reading this is aware of the word sinus and has probably seen ads or commercials on tv advertising some medication for colds and flu and sinusitis. That mucous tissue in the frontal sinus (and the other sinuses) will secrete mucus to try and clear out debris and can overreact in such a way as to block the air flow through the sinus which then affects (in the case of the frontal sinus) the supraorbital nerve and cause the feeling of pressure. There’s got to be a nerve there to make us feel that.
Anyway, I found out that the frontal sinuses may not start to develop until one is 2 years old and aren’t fully developed until perhaps 7 or 8 years old. And about 5% of people don’t even have a frontal sinus! Maybe that’s good so they probably don’t get “eye pressure.”
But…there’s always a but isn’t there?….there’s a chance the “eye pressure” might be something in or around the eye like a corneal abrasion or that unlikely case of true eye pressure caused by too much fluid in the eye (an acute form of glaucoma), that your eye doctor would be the one to “see” for that.