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Hi, this is Dr. Youssef
from Cornwall, Ontario,
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presenting to you how we do
the cataract surgery in 2018
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and the few modifications we made
over 2017.
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So we start the surgery
by putting EndoCoat on the cornea,
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which is a dispersive viscoelastic.
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This gives you a clear cornea
throughout the surgery
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without having the nurse to put
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a balanced salt solution
on the cornea.
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This is the incision;
it's 2.75 millimeters,
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two millimeter deep
in the temporal part of the cornea.
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You have to make sure
that the construction
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of the wound to be self-sealing;
don't suture wounds.
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This is the injection
of 1% preservative-free Xylocaine
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with seven drops
of 10% phenol,
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and we inject about 0.2 mL's.
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And this is the EndoCoat again,
protecting the back
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of the cornea
and forming the chamber
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to give you space to work.
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And this is the paracentesis,
which end up to be
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0.8 millimeters in size.
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It's about 80 degrees to the left
of the main incision.
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This is a very important, simple step.
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We put a mark on the cornea
to make sure
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that the capsulorhexis opening
is well centralized,
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and it's a proper size
to cover the optic of the lens,
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so that you don't get any--
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much less PCO
and perfect concentration.
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So we start the capsulorhexis,
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and we try to follow the direction
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of the mark we made in cornea.
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Of course, the Femto-Second Laser,
for now,
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we use for that step,
and it gives you
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a perfect 4.9 millimeter size,
very well centralized,
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because it scans the capsule
and it gives you
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a perfect location,
so use the Femto-Second for that.
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This is a hydrodysection
and hydrolineation;
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"hydrosection"
is splitting the cortical material
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from the capsule, and "hydrodelineation"
is to delineate the cap,
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the nucleus,
to allow us to remove these--
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each one of them,
in a separate step.
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This is the fake emulsification step.
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We use the Signature Pro,
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the Whitestar,
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and we remove the nucleus
in dividing
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and use a chopping technique,
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so each quadrant
is removed by itself
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using the fake emulsification,
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and it works well for that purpose.
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Now this is the epinucleus,
and this very important step to--
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at this stage, that you have nothing
holding the capsule back,
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so we have to make sure
that the chopper
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is there to protect the capsule
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and avoid accidental
capturing and ripping the capsule.
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See, this step-- What I did,
I opened a small opening
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in the cortical material
to allow the J-cannula
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to go between the cortical material
and the capsule,
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and to result in a perfectly-done...
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J-cannula cortical cleanup.
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So you can see this--
J-cannula is pushing, actually,
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the cortical material out
through the wound,
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and it's resulting in a clean,
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well-polished posterior capsule,
without having to go
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with your I/A
and risking capturing the capsule
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and resulting in PC tear,
which is a major complication
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of saccadic surgery.
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So we make sure
that the smallest parts are cleaned,
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and it cleans up the areas
that you don't even see,
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because the BSS will rotate
into the capsular bag
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and remove all the cortical material
that's hiding.
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Now we're inflating the capsular bag
using Healon,
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which is a cohesive, visoelastic material
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to allow it to easily remove it
after the lens implantation
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without increasing the pressure.
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Now, this is the lens; this
is the TECNIS from Johnson & Johnson.
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It's a one-piece lens;
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it has the optical,
which is about 6.5 millimeters,
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and the two haptics,
which are the two legs
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that would hold lens in place.
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It goes in folded,
and it's unfolded inside,
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so the openings are small
to allow us
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to do the surgery
without putting sutures.
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We don't use the PMMA,
the hard lenses, anymore.
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Standard lens
is a soft lens in Ontario.
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So we're removing all the viscoelastics
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from the anterior chamber
using the lens as a shield.
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So the lens has to stay
in place
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protecting the capsule
from the cortical material,
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and if I need to clean up
behind the lens,
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I should use irrigation,
rather than aspiration, to remove it.
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I don't go, again,
behind the lens
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using the irrigation aspiration,
because it risks the capsule.
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On hydrating, you won't,
using the moxifloxacin,
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which is diluted VIGAMOX.
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You empty the tenth--
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the 3 mL VIGAMOX from Alcon;
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add 7 millimeters of--
milliliters of DSS,
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and you result in 10 mL
of diluted 150 microgram
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per 0.1 mL,
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and you use that
to hydrate the wound.
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This is the the dropless injection.
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So it's a mix
of moxifloxacin and triamcinolone
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and injected
into the subconjunctival space
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and make sure that you avoid
the subconjunctival of the blood vessels.
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To sum up, this is a sped-up video
of the same thing.
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So I'll use the viscoelastic
on the cornea, intracameral...
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Xylocaine and Phenyl-.
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I don't put it on the infusion anymore.
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We use the capsule as a guide
to guide the capsulorhexis.
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Always protect the capsule
throughout the surgery,
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through the phaco--
through the irrigation aspiration,
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using the lens and using the J-cannula
to protect the capsule.
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J-cannula is a perfect way
to remove--
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to result
in a cortical cleanup that's perfect
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without risking the capsule rupture;
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use the IOL to protect it.
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I don't use any aspiration
behind the lens,
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and we use the dropless injections
so we don't have to
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put drops after the surgery
except for lubricating drops
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if it gets wider in shape.
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Thank you for watching.