dave's blog

A lot has changed in six months. For example, compare these eye pressure values:

Today's overall eye pressure averages are:

Left 12.4; Right 13.1 (differential 0.7)

Here are some of the factors that define fit eyes:

Dynamic Visual Acuity
This is the ability to clearly see objects while you and the objects are moving fast.

Visual Concentration
Visual Concentration is the ability to screen out distractions and stay focused on the competition.

 According to DirtRider, Ricky flew straight from winning the World Supercross series event in Vancouver British Columbia on Saturday night to Lakeland Florida for a NASCAR test on Monday morning.

Things didn't go well for James Stewart in Toronto. The key in-race incident and Stewart's ankle injury are the result of a vision-related issue. Stewart explains it like this:

How many of you remember watching Jeremy McGrath dominate Supercross? One thing that struck me about Jeremy was that he seemed to always know what was happening everywhere on the track. I remember some people commenting that he seemed to have eyes in the back of his head. However, to me, it seemed like he had a super wide field of vision and very quick vision. He was aware of events (crashes, misplaced hay bails, etc.) well ahead of his position on the track.

The combination of diligent stress management along with using Xalatan and timolol maleate (0.25%) without waiting between eye drops has produced very good results over the last nine days. I will comment on the details in other posts, but in this post I want to show the overall daily eye pressure averages for the last nine days because this is the best period on record so far.

In high speed motorsports, having fit eyes is one of the most important athletic talents the racer can possess. Today's top racers all employ fitness trainers. However, I feel that the smart competitors will soon recognize vision training to improve eye fitness as an important competitive advantage.

A person with fit eyes has 20/20 or better vision, without question. However, fit eyes covers a lot more than just seeing 20/20 under standard testing conditions.

These are my two-year follow up visual field test results. The prior Humphrey Visual Field tests were done on 02-Jan-2006. The first Humphrey tests were done on September 8, 2004. (These tests have all been done with the "old style" Humphrey instruments -- but they have not all used the same testing program.)

 By Y. Yücel

http://www.glaucom.com/Supplement/MFG2006/Session4.php#neuro 

I found this data interesting. It hints that I sometimes have eye pressure changes related to postural changes. In the chart below, you'll see that my eye pressure went from 17 to 23 to 17 very quickly after I went from lying down to standing (and then sitting).

Working with my medical team, I have recorded tens of thousands of eye pressure measurements with a variety of tonometers under a variety of conditions. This blog post describes a recent comparison we performed between the Reichert AT555 (a non-contact tonometer or NCT) we use for most eye pressure measurements and Goldman applanation tonometry (GAT) performed by one of the doctors on my medical team. I believe our data indicates that the Reichert AT555 tonometer does an excellent job.

NOTE: This post was made in late 2006. The comments following it were made in early 2007. In the time that has passed since these initial intraocular pressure observations were made (see comments below), we have come to understand this situation much, much better. This thread is interesting for background information, but please see the more recent posts on FitEyes.com if you want to really understand the relationship between stress, breathing, meditation and eye pressure. I have been in contact with a number of people who have tonometers and who have replicated some of these observations, and the patterns continue to hold. Basically, this seems to apply to all glaucoma patients. However, there are individual differences, especially among meditators and non-meditators.

This abstract simply triggers a discussion in the comments below. All the interesting info is in the comments.