Corneal laceration repair tips

mohamedzaki7106670 660 views 56 slides Feb 11, 2022
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About This Presentation

How to improve the outcome of corneal laceration repair


Slide Content

Corneal Laceration
Repair
·Mohamed Zaky Elkadim MD
·2020

ميحرلا نمحرلا الله مسب

Aim
5 advises to improve visual outcome
of repair of corneal laceration

1
Antibiotic Prophylaxis
Inject through the wound or side port
Avoid intravitreal injection except if there is evidence of
endophthalmitis or IOFP as injection in soft tesnsion can
induce lens , retinal or choroidal injury

Hypopyon?
·Presence of hypopyon particularly in
neglected wounds and pediatrics not
equal endophthalmitis but may be just
reaction.

2
Amniotic Membrane On-lay
for severely lacerated
wound

Leaky wound
Tight sutures
Astigmatism
Glue / AMT
Increase
number of
sutures
Opacity
PKP
RGP

Role of AMT
·Close small defects : decrease number
of sutures / pupil sparing sutures
·Prevent over tight suturing
·Stimulate healing.
·Anti-inflammatory
Converts Lacerated Incision to Blade incision

Too aggressive

Surgical technique
Strip of AM is applied to the wound
from the start.
Wound is sutured with interrupted
nylon 10/0 sutures including the AM
strip.
Suturing is avoided in the visual axis
Bandage soft CL is applied.

CASE 1

Preoperative (persistent leak)

Post operative

After suture removal

Spectacle BCVA
Refraction BCVA K-reading
+1.00 /
-1.5 x 100
0.3 42.25
44.00
Senile
macular
degenration

CASE 2

Note the long suture is taken to avoid
suturing in the visual axis

CASE 3

·Middle age
·Clean cut

Keratoscopy

Spectacle BCVA
BCVA
(with glasses)
K-reading
0.5 44.9 / 47.3
cataract

CASE 4

preoperative

Post operative

Note that sutures near the center should be
shorter and will spaced

After vitrectomy

After Vitrectomy

Pentacam

Spectacle BCVA
Refraction BCVA
(with soft
CL)
K-reading
+ 10 0.4
44.00
46.00

Post operative complications
·Early post operative hypotony
·Early membrane displacement
·Difficult suturing and membrane tears
·? Poor intraocular visualization

3
Traumatic Cataract with
open anterior capsule

Problem with traumatic
cataract
·Posterior capsule usually open.
·Prolapsed Vitreous = incomplete removal
of lens matter.
·Dropped lens = severe vitritis.
·Cyclitic membrane or vitrectomy ==
Atrophia.

Prognostic factors
·Surgeon experience
·Age of the patient
*< 10 ys
* 15 –25 ys
* Hard cataract
·Size of the corneal wound

Advantage to do
·Avoid near second anesthesia
·Removal of IOFP

Technique
·Close the wound 1
st
.
·Dilate pupil and
·Identify the capsular
·opening
·2 side ports perpendicular to capsular
tear.

AC should be stable with
Healon
·Gradual prolapse of the lens matter in
the AC using viscodissection.
·Slow motion I/A in the AC with
injection of OVD once AC get shallow

AC should be stable with
Healon
·Very deep AC = lens matter will drop
·Very shallow AC = vitreous will
prolapse.

4
Refractive Correction ±
Amblyopia therapy

Which is optically better in a
case with corneal scar ??
·Hyperopic glasses
·Soft contact lens
·Ac IOL
·Artisan
·Yamane technique

How to get the axis of astigmatism
in cases with corneal opacity ?
·Autoref
·Topography
·Uniocular trial
·Binocular trial

Refraction
+ 1.5
Trial sphere
and cylinder

Which is optically better in a
case with corneal scar ??
·Hyperopic glasses
·Soft contact lens
·Ac IOL
·Artisan
·Yamane technique

If the bag is intact ??
·Single piece IOL in the bag ?
·Three piece IOL in the sulcus ?

5

لله دمحلا