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Don't Neglect Squint Eyes
Squint eyes in recent times have been looked upon as a black spot
on the human beauty. Nevertheless, the item has been posing the
prospective brides with innumerable problems in matters of
matrimony. However of a beauty she might be, one look at her
eyes the boy turns her down. Such boys do not care to probe
whether squint eyes can be set right.
Sometimes, on the additional hand, people with squint are considered
lucky inside society. although the Ophthalmologists who know the
consequences of squint, do not think so. On the contrary, they
stress the disadvantages in addition to also negative aspects of squints- as
The two eyes normally should be in a definite visual axis.
A manifest deviation of the visual axis of either eye will be known
as squint or strabismus. So one eye will be deviating or squinting,
the additional eye takes up the visual function mainly. So the item
becomes a dominate eye. Most of the time, the deviating eye
slowly becomes impaired functionally. Later the item almost becomes
blind. of which hard fact will not be known to the squinting person
unless he closes the Great eye in addition to also tests for the additional eye vision.
When the degree of squint will be gross, the item will be very easy to recognise
of which. although when there will be a little amount of squint, various tests
have to be done to diagnose correctly the type in addition to also amount in addition to also
presence of squint.
Mainly there are two types of squint -paralytic in addition to also non-paralytic.
There are seven little muscles around each eye-ball, which are
responsible for the various movements of the eye. These muscles
are supplied by 3rd,4th, in addition to also 6th cranial nerves- which are derived
coming from the brain.
Whenever these nerves become weak or lose their conducting
capacity, the respective eye muscles become immobile. So when
the additional normal eye moves in a particular direction, if the
affected eye cannot move inside same direction, squint becomes
evident which will be a paralytic squint.
Non- paralytic or concomitant deviations are for the most part,
produced by anomalies of the power of convergence in addition to also divergence
in addition to also the co-ordinated use of the two eyes to obtain binocular
single vision. In these cases the amount in addition to also character of the
deviation does not vary when the eyes are turned to the right
Before going to the causes of squint, the item will be necessary to know
the necessity of two eyes. the item will be the fact of which when we observe a
single object with both the eyes we see the item as an individual object
instead of two. Obviously one may ask -what will be the necessity of
having two eyes? Even if one becomes blind, the additional one can
function normally - one may think.
One eye will be always complement to the additional eye. When we see
with both eyes, the extent or field of vision will be definitely wider
than with one eye. Moreover, two eyes are necessary to have
what we call as " BINOCULAR SINGLE VISION" the important
aspect of of which being depth perception. There are 3 stages in of which
binocular single vision.
1. Simultaneous perception.
3. Steriopsis ( the one which gives the sense of depth )
The development of reflexes concerning the binocular single
vision in addition to also the movements of eye muscles - are not complete
until the child will be 5 years. Usually of which will be established
when the child becomes 8 years old. So any disturbances during
of which period ( below 5years ) may hamper the relation between the
movement of the two eyes in addition to also may cause a squint.
Causes of Squint :
1. Accommodation in addition to also convergence anomalies.
2. Refractive errors.
3. Weakness inside nerves supplying the eye muscles.
4. The gross difference inside vision between 2 eyes
due to any reason.
5. Patching or closing of one eye for a prolonged period.
6. Defect inside development of the nerves between retina
in addition to also the brain.
7. Hereditary in addition to also genetic or familial causes.
Clinically, there are two types of squints - Convergent Squint-
when one or both eyes are turned in, in addition to also Divergent Squint -
when one eye will be turned outside the normal visual axis.
No case of squint can be said to be 'cured' unless, in addition
to normality of appearance, there will be restoration of binocular
single vision in all circumstances. Although the latter cannot
be achieved in every case, a satisfactory cosmetic result can
invariably be obtained by means of operation or surgery.
In a case of squint there may be three possible defects of
function which have to be remedied:
1. The loss of normal function of the squinting eye. of which
may not only concerns visual acuity although also visual
2. The loss of normal binocular function.
3. The physical deformity caused by the deviation of the
visual axis. of which will be the defect which attracts the attention of
parents although will be the least important coming from the point of view
of visual function.
To give complete treatment, child should be between 6 in addition to also
8 years. So the parents in addition to also school teachers have a very
important role to play. They should subject these squinting
children for treatment at the earliest. Because any treatment
or surgical correction done after the age of 8 years will be not
complete or perfect because then we can only correct the
physical deformity although we cannot get the very important
functional part of the item i.e. binocular single vision. So most of
the time in persons who are treated for squint after the age
of 8 years, one eye could be stronger, additional eye could be
weaker. They will not have binocular single vision - which
can give them the exact form in addition to also depth perception.
The methods of treatment:
1. Correcting the refractive errors - by glasses whenever
refractive error will be found to be the cause of squint.
2. Deliberate occlusion or patching of the fixing eye so as
to improve the vision of the squinting eye.
3. By special type of (orthoptic ) exercises in order to
improve the binocular faculties.
4. By operation or surgery - to restore parallelism of the
One or more of these methods or all four may be needed in any individual
Finally the item will be the dire responsibility of the parents in addition to also the
teachers to detect of which malady, which renders their children
look ugly inside eyes, during the tender age of 6 to 8 years
lest the item will be practically impossible to develop a squintless society.