At Home with Chris Jessen 2018 - 124
The eyes have it
Modern vision correction includes laser eye surgery, contact lens implants
and lens exchange surgery - for all prescriptions and conditions
he idea that only a few lucky
people are suitable for laser eye
surgery or that only certain
prescriptions can be treated is
no longer true. With today's corrective
techniques, it's no longer necessary
for anyone to be confined to wearing
glasses, regardless of their prescription.
A common misconception is that
vision correction always involves laser
surgery, but with modern technology
this is not the case - laser eye surgery
is just one of a range of options.
When choosing a vision correction
clinic, it's important to look at the
range of treatments offered and the
experience of the surgeons. Clinics
offering the full range of treatments
are more likely to be able to meet the
specific individual needs of patients.
The latest, state-of-the-art procedures
for vision correction are:
Laser eye surgery
LASEK/PRK This is first-generation laser
eye surgery, where the laser is applied
directly to the surface of the cornea.
It can be painful after surgery and
may take up to three months for the
vision to stabilise.
LASIK This is second-generation laser
eye surgery and the most commonly
performed type in the world, with more
than 40 million eyes treated and 25
years of follow up.
LASIK remains an excellent choice,
but it does have limitations in that it
leads to dry-eye symptoms in virtually
all patients and there is a permanent
weakening of the cornea following
the procedure. This is because a flap,
requiring a 26mm incision, has to be
created during surgery and the cornea
never fully regains its strength, even
after it is fully healed. For this reason,
LASIK is not an option for patients
who play contact sports.
RELEX SMILETM A third-generation
laser eye surgery procedure, this is
effectively the same as LASIK, but
performed through a 3mm keyhole
incision. Dry eye is far less common and
the cornea returns to full strength within
weeks of surgery. For those who play
contact sports and those who suffer
from dry eye, SMILE is the best option.
PRESBYONDTM This is another thirdgeneration technique used to restore
reading vision in patients who have
recently started needing glasses to see
up close. It is an evolution of LASIK, in
which a technique called 'blended vision'
is used to reset the vision in both eyes.
One eye is focused for the distance,
while the other is focused for reading.
The brain then combines the vision from
both eyes to give distance, mid-range
and reading-range vision, without the
need for glasses.
EVO VISIAN IMPLANTABLE CONTACT
LENSES These lens implants are made
from an advanced material that is part
biomedical-grade plastic and part
protein. They have been used in Europe
since 1997 and in the US since 2005.
In that time, more than 550,000 eyes
have been treated, with a 99% patient
satisfaction rate - an outstanding result.
The lens implants are inserted into the
eye through a tiny 3mm keyhole incision
and are placed on the surface of the
eye's own lens to correct long sightedness,
short sightedness and astigmatism.