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Thursday, November 29, 2018

Catarractts and Glaucoma

Catarracts


    In Taber’s Cyclopedic Medical Dictionary Catarracts (2001)
are a  disease of the eyes that can be observed even by the patient
themselves. Below is an excellent drawing of an eye that has a Catarract.
The white dot is the catarract.
Eventually it will cover the Iris also


    It is a simple drawing showing a white dot in the middle of the
Cornea (the dark center of the eye). surrounded by the Iris (colored
part of the Eye). In the beginning, it is only a small, insignificant speck
in the Cornea.
   What causes it is not known. But it is reported 90% of those
over 65 get catarracts.  At first it affects night driving….glare from
headlights on cars. Glare from LED lights on automobiles do not
have glare, the light have spikes of light, (thin spikes like arrows)
which is not the hazy glare that the older headlights once produced
against the eyes.
   With catarracts, as pinpoints on the cornea, one can still drive
a car, but usually, driving is limited to daylight driving. If one does
not drive at night, one might think they do not have catarracts.
   
   The definition in Taber’s Medical book tell us 97% of persons
over 65 get catarracts However, since catarracts are a surface
problem, one can check their own eyes in their home mirrors.
To make sure, that no white areas are creeping on top of the
cornea as shown above. If any white specks are found, then
see a reputable eye surgeon for confirmation. This problem
can be removed.

Glaucoma


   Glaucoma, a different disease creates a rainbow around light seen.
This problem, because it is the fluid inside the eye, you should aways
go to an oculist with a companion who can drive you home. The worst
part of glaucoma is that it may be cured by surgery by adding a stint
in back of the eye to relieve the pressure  of the swolen eyeball and
to ease the disturbance on the optic nerve.

   Since it is an internal problem, the symptoms are: “reduced visual
acuity (especially at night). It is not correctable with perscription lenses.
 Acute angle-closure glaucoma (an ophthalmic emergency) causes
excruciating unilateral pain and pressure, blurred vision, decreased
visual acuity, halos around lights, diplophia (two images seen at the same
time), lacrimnation (tears), nausia and vomiting.”
                       .


On the whole, Glaucoma is a much more serious problem. Taber does
say that medication (eye drops) is available but even that is daunting.

   The old wives tale of home prevention is eat carrots and peaches
(fruit and veggies that are yellow) Could that have been why my grandfather
had several peach trees in his back yard?