Will Lasik help You Discard Glasses
Lasik surgery is a wonderful innovation in the field of eye care
that has helped millions of people ailing from visual problems better
their vision. With this state-of-the-art technology, the patient
is conscious and awake while the procedure is performed. The cornea
is incised to reflect a flap with the help of a unique type of blade
or laser. A hinge is left on the flap by the surgeon to place it
back after the surgery.
During the procedure, after the flap is reflected by the surgeon,
the middle zone of the cornea called the stroma is reshaped. This
is done by utilizing an excimer laser that removes away the tissue
irregularities without causing any injury to the surrounding tissues.
Several patients undergoing Lasik see an improvement in their sight
just after the procedure. Still some others will see some changes
in their sight over few days or in some weeks.
Many people will have an improvement in their vision to get 20/20
vision or much improved than that after having Lasik surgery for
eye correction. Some people might just get a vision correction of
20/40 or poorer than that. 20/40 can be considered an improvement
in many cases and this is the legal limit for many states to allow
a person to drive a vehicle but it is definitely not a perfect result.
Many patients might need to continue wearing contacts or eyeglasses
even after the procedure. But, the prescription for these glasses
will be much lesser in comparison to what it was before the procedure.
The vision of some patients who have had Lasik may slowly revert
back to their original state and their vision might gradually deteriorate.
If such a situation occurs, the surgeon will need to perform a second
surgery to bring about perfection of the vision for a second time.
People who have had success with Lasik treatment may still need
to wear glasses once they attain an age of 40 years. This condition
is referred to as Presbyopia that usually has an onset in the age
group of 38 to 42 years. People with this condition will generally
have a clear vision for far off distances but will have trouble
seeing objects located close by as well as have trouble in reading.
In order to read or to check things, they will hold the paper or
the object by stretching their arms when not wearing glasses. They
also have a tendency to develop headache when reading or while checking
on minute things.
Presbyopia is a natural aging phenomenon and will require glasses
for correction of the vision problem. It is due to the inability
of the eye to focus upon things up close. This condition is many
times confused with hyperopia (farsightedness) although the two
are dissimilar. Presbyopia is due to the rigidity of the lens in
the eye whereas hyperopia is due to the irregularities of the shape
of the eyeball.
Hyperopia can be rectified by undertaking Lasik treatment as this
involves the reshaping of the cornea but presbyopia cannot be rectified
with Lasik. Currently, there is study going on in trying to develop
ways to rectify presbyopia by Lasik surgery.
If the laser is not used properly during Lasik treatment, it can
result in irregularities in the surface of the cornea leading to
asymmetry and irregular astigmatism. This can result in symptoms
like blurring of the vision, seeing double and visualizing ghost
images. This may necessitate the wearing of glasses to rectify this
defect or will need a second surgery to correct it.
People who are opting to go for Lasik should not have any over
expectations out of the procedure. There are high chances that you
will not get the perfect vision that you anticipated out of the
procedure. To top this, there can be rare chances that there may
be complications that can actually leave you in a worse situation
There are chances of deterioration of the condition in some patients
after the surgery. This kind of a situation might necessitate you
to wear contacts or glasses once again or might require a second
surgery to make the required alterations to rectify the problem.
Also, it is essential to keep in mind that there are certain age
related changes that can occur which has a bearing on your vision.
So, even if you had good outcome from the Lasik treatment, you may
still need to have glasses for reading and doing work up close.
This is of relevance generally to elderly people who might otherwise
take up Lasik and expect it to correct all vision problems including
conditions like presbyopia. They should also realize that the results
got out of Lasik might get affected at a later stage due to the
onset of presbyopia.