[Dixielandjazz] brass & eyesight
RoddyTpt at aol.com
RoddyTpt at aol.com
Tue Jun 13 04:19:08 PDT 2006
This is from my upcoming book 4....
76. Intra Ocular Pressure (IOP)
¨ Symptoms can be difficult to detect until too late, damage may
be by then irreversible.
¨ The onset of Glaucoma is brought about and made worse by
increased levels of IOP (pressure within the eyeball)
¨ Glaucoma is the most common cause of blindness in
¨ Changes are usually in both eyes although they may progress at
¨ Peripheral vision is impaired first, followed by loss of central
vision in the late stages.
Risk factors for GLAUCOMA may include the following:
¨ Elevated IOP ,
¨ Age (older = higher risk),
¨ African-American race,
¨ Heredity (positive family history for glaucoma),
¨ Myopia (near-sightedness),
¨ Over use of steroid medications,
¨ Systemic Hypertension
¨ Diabetes Mellitus.
The only modifiable risk factor from above of GLAUCOMA, is that of an
elevated IOP, and all treatments work towards reducing this.
Periodic examinations by an ophthalmologist are highly recommended, during
¨ IOP will be measured,
¨ Visual fields evaluated,
¨ Optic nerves assessed.
A complete eye exam by 40 yrs of age, then repeated exams every 2 to 4 years
until age 65, with exams every 1 to 2 years thereafter. If you have any of
the risk factors listed above, screening earlier and at more frequent
intervals obviously may be better or more effective at prevention.
Treatments for glaucoma include:
¨ Laser surgery,
¨ Eye surgery,
¨ or a combination of these above.....
Research is minimal regarding the question of whether or not wind instrument
playing raises IOP.
IOP and other parameters for glaucoma have been assessed in trumpet, oboe,
clarinet and saxophone players.
IOP elevation was seen in players proportionate to the force of blowing, and
trends were greater with the trumpet and oboe than with the clarinet and
It may be a case of repeated Valsalva's maneuvers, or the use of bigger
diaphragmatic back pressure.
Observation concluded that IOP tends to rise slightly with playing,
especially high resistance wind instruments, and long-term visual field changes of a
small but significant magnitude occur with the increased LIFETIME exposure to
high resistance playing.
Speculation is that cumulative effects of repetitive intermittent IOP
elevations MAY result in glaucoma damage. Regular screening is essential!
"E M B O U C H U R E ____E N H A N C E M E N T"
[Self Analysis / Diagnostic Methods for Trumpet Advancement]
BOOK 1 (200 Pages of text)
BOOK 2 (Tests notated + play-along CD)
BOOK 3 (Low register analysis)
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