Eye Pressure

A Lazy Day

Submitted by dave on Thu, 11/09/2006 - 9:59am

I didn't sleep enough last night, and I felt a little dull today. Consequently, I just went through the motions in most of my activities today without pushing myself very hard -- and without putting much effort into the positive habits I've been developing, either. For example, I did not do any weight training today, nor did I  accomplish anything  extraordinary at work. I didn't get to cross off many items on my ToDo list.

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Eye Pressure Medication Less Effective Under Stress?

Submitted by dave on Tue, 11/07/2006 - 10:59pm

Something changed between yesterday and today...

In recent weeks my eye pressure has been higher, on average. I presume that situation coincides with the meetings and discussions about my new business venture. We had casual conversations for a while, but the beginning of serious meetings and we financial negotiations, correlates closely with the increased average eye pressure values. (Of course, there could be something else that changed around this time that I'm overlooking, so I'll try to keep an open mind.)

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Bad News Bad For IOP

Submitted by dave on Mon, 11/06/2006 - 10:59pm

There are a few interesting comments I can make about today's IOP data. First, the weight-lifting effect is present once again. Second, notice how watching "The Amazing Race" on TV raised my IOP. I can't really explain that, but I have seen the same thing happen so many times that I don't believe it is a coincidence. Watching the news, particularly when there is a lot of bad news, has a similar IOP-raising effect on me.

Today's overall average IOP values are:

Left 16.7; Right 19.4 (differential 2.7)

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Weight Lifting Lowers My Eye Pressure

Submitted by dave on Mon, 11/06/2006 - 3:14pm

Exercise As little as 5 or 10 minutes of weight lifting gives me a post-exercise effect that results in reduced eye pressure after the workout.

The weight lifting doesn't have to be super intense, but it can't be too easy either. There have been a few studies that have looked at this effect in the past. Here are some (but not all) of the links:

Effects of Different Intensities of Exercise on Intraocular Pressure

The effect of continuous strenuous exercise on intraocular pressure

The effect of exercise on intraocular pressure (pdf)

In my experience, a short weight lifting program often brings my eye pressure down to around 14 or 15 (or less). Sometimes the effect is not very dramatic. For example, if my eye pressure is around 17, the workout might bring it down to 15. Other times, the post workout effect is fairly impressive. Here are some examples:

Transcendental Meditation Increases My IOP

Submitted by dave on Sat, 11/04/2006 - 11:00pm

My daily average IOP has been higher recently. Prior to starting serious talks about this new business venture, my average IOP values for a given day were often 15-16 for each eye. Today's means were:

Left 17.6; Right 20.8 (differential 3.1; days since Timoptic 1) 

This data represents a departure from prior trends. Within 1 day after Timoptic in my right eye, the IOP differential would normally be around 0.

As usual, the data seem to indicate that not only does stress raise my mean IOP values, it also raises the standard deviation of the measurements.

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A Middle-Of-The-Night IOP Exam

Submitted by dave on Wed, 11/01/2006 - 10:59pm

Today's IOP values include an interesting exam in the middle of the night (4:15 AM, which is the middle of the night for me). They also include data for 2:36 AM the following morning, when I was awake and working late. I have seen some indication that my IOP can reach the high twenties (or more) in my right eye when laying down or sleeping.

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