Eye assessment in polytrauma for undergraduates.pptx
1.
Eye assessment inPoly
trauma
Mohamed ELShafie
Lecturer of ophthalmology
2.
The eye protectedfrom direct
injury by:
1-lid
2- lashes
3- margin of the orbit.
3.
The most importantpoints about ocular trauma:
Number one of ocular emergencies
Leading cause of blindness , irrespective of age , sex and
geographic distribution.
Male young middle ages is the most common age affected.
Everyone must know the importance of immediate
intervention.
prophylactic better than management.
Significant eye injurywas statistically
associated with the following:
• driving a motor vehicle
• age < 50 years
• male sex
• associated basal skull or orbital fracture
• lid laceration or superficial eye injury.
10.
Transfer immediately toER if:
• unstable vital signs
• impaired mental status
• serious nonocular injuries
11.
Try to protect
theeyes
during manipulations of
the mouth, nose, and
trachea.
b
C
c
Chemical Burn
6TH
Alkali burnsmore severe as it penetrates more deeply into the ocular tissues.
Acids (ammonia and sodium hydroxide) coagulate proteins, forming a protective barrier.
23.
•Alkali (OH): causeliquefactive necrosis and more penetrating in
further than acid .
•Acid (H): cause coagulative necrosis so no further penetration.
•Medical management
1-Copious irrigationwith isotonic saline.
2-Removal of chemical injury particles from corneal , conj. And fornices.
3-topical corticosteroid
•Prednisolone acetate every 2h in mild cases , hourly in severe cases.
•Tapering when healing occur.
•Stop with corneal thinning or melting.
4- topical citrate 10 % .
5-Topical ascorbate .
6-Tab doxy 100 mg bd for 2 weeks
7-Moxifloxacin e/d.
8-Cycloplegic homatropine 2% bid.
•Surgical management :
1- detriments
2-Amminiotic membrane
3-Tissue adhesive and keratoplasty
Treatment:
irrigation, irrigation,
irrigation
26.
Irrigation and removalof chemical injury particle :
•Is the most important step in preventing further damage of the
eye must started at the scene of the accident.
•Copious irrigation by:
Normal saline.
Ringer lactate solution.
Clean water.
Any clean fluid.
•Irrigation for 30 min reduce the injury 1.5 unit
• be sure there is no any remanent particle in the fornices which
may hidden in the upper tarsus and convert to alkali by tear and
cause further damage.
•Blow out orbitalfloor fracture:
•Caused by sudden increase of
intraorbital pressure by impacting
object (Ex fist and tennis ball)
greater in diameter than orbital
aperture (more than 5 cm )
Repair of lidlaceration:
•General principle:
•Clean the wound.
• Removal of foreign body
• Careful handling of the tissue.
•Careful alignment of the
anatomy.( lid margin . Hair lashes
and skin folds).
•Close in layer
•Anesthesia under general or
local anesthesia.
•Timing perfect within 12 to 24 h
may delayed to one week due to
severe edema of the tissue or
patient factor.
48.
•Without gaping :
•primaryclosure by 5-0 or 6-0 black silk removal after 5 days .
•Lid margin laceration:
•Good alignment of the anatomy
•Closure of tarsal plate by absorbable suture vicryl 5-0 and closure to lid
margin by silk 5-0 and closure of the skin by simple interrupted suture.
•Laceration with tissue loss:
•1ry closure may later need graft or cantholysis.
Editor's Notes
#8 Prior to taking a history and performing an examination focused on the eye focusing on any life-threatening injury
ophthalmologist is usually called for consultation after the patient is stabilized and may have no immediate role in the triage process
#13
A careful examination must be conducted in all cases to exclude traumatic injury to the globe or orbit, retrobulbar haemorrhage or fractures to the orbital roof or base of the skull.
C banda eye