Page 260 - In The Name Of Allah, The All-Merciful And Most Merciful

In the Name of Allah, The All-Merciful and Most Merciful

from completely closing or closing in the normal manner, find
themselves faced with the danger that the cornea cannot be
lubricated, and infections may arise due to drying. If this ill-
ness persists for a long time, the eye can be permanently dam-
aged.

Human reflexes are defined as rapid involuntary re-

actions to external warnings. This reflex mechanism moves
the eyelids at the appropriate time and wards off danger.
Something that touches the cornea, the eyelashes, the area be-
tween the eyes, or the forehead may cause a reflex that warns
the eyelids. If we examine the network of nerves that produce
blinking, we see just how subtle this nerve network really is.
To produce each of the reflexes described above, warnings

must be carried to the eyelid by different paths and proceed
to the brain, where they are evaluated. Nerve stimuli are then
sent to the relevant muscles.
In this process, the nerve stimuli reach the brain directly
within one one-thousandth of a second. Thus, the eyelid clos-
es at just the right time to protect the eye from the foreign
matter or to clean it. This process of recognizing danger and
sending various reflexes as signals along separate nerve paths
without any confusion is extremely complicated. Human be-

ings, who are surrounded by constantly changing conditions,
must know what is going on around them. For this reason,
blinking is such a quick action that it does not endanger the
person in any way, which is truly a great blessing. It would be
very dangerous if blinking lasted a long time. At a moment

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