|
Eye Disease
Wouldn’t it
be great if we all had our dream car that didn’t need
oil changes, premium gas, hefty insurance, and tire
changes? What if it also didn’t rust or deteriorate with
time? Maybe in the near future.
For now, we all know that maintenance schedules are
required to make any car we have last as long as
possible, especially if that is the only car we have.
The same concept applies to our eyes. Routine eye exams
are the first steps
to preserving one’s vision as time
passes by. Numerous eye conditions are preventable
and/or correctable if detected early enough such as presbyopia, dry eye syndrome, glaucoma, cataract,
diabetic and hypertensive retinopathy, and others.
We are all born with
focusing lenses accompanied by muscles inside our eyes.
At a young age, the lens is flexible. We can read as
close as we want. As we get older, the lenses become
hardened. The magic number is the big “four-zero”. The
focusing muscles have to work very hard which can cause
headaches and eyestrain. A smaller number of individuals
prefer to take the headaches and strain until their arms
can’t be extended any further. To alleviate the near
symptoms, a magnified lens is used to help our eyes
focus better with reading and computer. There are many
options to correct the aging lens.
The first
option is reading glasses over any distance
prescription. The drawback is that one has to take off
to focus at a distance.
The second
option is bifocal. It is the combination of distance and
near prescriptions into one lens. The disadvantage to
this type of lens is cosmetic. The advantage is the ease
of usage. When one wants to read, just drop one’s eyes
into the reading materials.
The third
option is invisible trifocal. It does not have any lines
in the lens. The reading portion is integrated in step
levels starting with weakest in the middle of the lens
to the strongest reading power at the bottom of the
lens. Therefore, if one wants to read smaller prints one
has to raise the chin so that the eyes drop to the
bottom of the lens for more powers. The other drawback
to this is the reading field of view at each level is
smaller than the bifocal’s. There are other options such
as anti-reflective coatings and tints to help the near
tasks.
Now let’s talk about Dry-eye Syndrome:
Are your eyes tearing, red, stinging, burning, having
foreign body sensations, and itching, especially after
reading or on the computer? The quantity and quality of
your tear may decrease with age, systemic conditions
such as rheumatoid arthritis, lupus and drugs such as
antihistamines and beta-blockers. In our office we
performs tests to determine the quantity and quality of
your tears in order to use the right mode of treatment.
Artificial tears usually take care of the problems.
Lubricating ointments can also be used overnight.
Punctual plugs are further treatments that can be made
permanent or disposable.
Glaucoma is a binding, detectable, preventable and
treatable disease. It is a nerve fiber layer of the
retina that is lost. The peripheral vision is the first
to go leading to tunnel vision and eventual blindness.
However, eye care providers can intervene to preserve
vision. The first step is to rule-out risk factors such
as family history, age, systemic vascular diseases,
myopia, and African-American descent. The screening step
allows the doctor to proceed with tests such as visual
field, pressure check, photos, and dilation.
Optometrists have recently gained the rights to treat
glaucoma.
Imagine yourself standing in
a house with just one window to the outside world. The
sun, smoke, dust, and other debris will affect this
clear window. Once the window is fuzzy enough to affect
clarity of vision, then it needs to be replaced with a
new one. The process describes cataract and it removal.
Cataract has four major risk factors, which are
ultraviolet lights, smoking, genetics, and bad habits.
The ozone layer is not what it used to be. There are
more holes in it then we can count. In reality, we will
all get cataracts eventually if we live long enough. By
wearing sun protection shades, cataract removal is
further in the distant future. Our office can help one
pick the right tints, shades, transition lens, and types
of eyewear to meet the needs of one’s eyes.
Think of a movie screen as
the only input to your brain. It has nerves, blood
vessels, and other structures to keep it in good
standings. This screen is called the retina, which is
susceptible to systemic diseases. Because Diabetes is a
small blood vessel disease, it can cause
nonproliferative and proliferative retinopathy dependent
on how controlled the sugar level is over a period of
time. In nonproliferative stage, there are hemorrhages,
cotton-wool spots, exudates that must be monitored
regularly. The proliferative stage, there is
neovascularization that must be treated. In addition,
diabetes temporarily affects vision until the sugar
level is stabilized. Another condition is hypertension,
which follows similar course as diabetes. Therefore, it
is crucial to monitor these conditions with regular
exams that include dilations, photos, and visual fields. |