enucleation of eye ball(dog)
Post on 31-Oct-2015
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Enucleation of Eye Ball(dog)TRANSCRIPT
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Enucleation of eye ball
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The Removal of the globe
Enucleation : the removal of the globe and nictitating membrane.
Exenteration : removal of the globe, nictitating membrane, orbital contents and lid margins.
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WHY MIGHT THIS PROCEDURE COME TO BE NECESSARY?
It has no chance of being capable of sight and it is painful.
Trauma to the eye - scratch to the eye that becomes infected - hitting the eye on something sharp
Tumors of the eye
Glaucoma
Endophthalmitis, panophthalmitis
Herpes infection related ulcers on the eye (in cats) are all catastrophes to the eye.
Others create a painful blinded eye.
Brachycephalic breeds
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cataract ulcer
glaucoma trauma Cornea erosion
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Orbital anatomy
Medial wall frontal, maxillary, lacrimal, zygomatic bones
Caudomedial wall presphenoid, basisphenoid, palatine bones
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Anatomy
Dog medial and dorsomedial wall of the orbit
Cat entirely bone ; zygomatic process, frontal process come into proximally
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Anatomy
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Anatomy
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Enucleation
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Our team members :
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Patients signalmentsName : Species : canineBreed : schnauzerSex : FemaleAge : about 1 yr Weight : 5 kgB.T : 38.0 R.R : 40 / minPurse : 130 / min
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CBC & Serum chemistry
RBC 725 * 104 /ul 540 ~780 x 104
WBC 16.5 * 103 /ul 6~17 x 103
PCV 35 % 37~54Fibrin 200 mg/dl 100~400Total Protein 7.8 g/dl 6.0~7.8BUN 11.5 mg/dl 10~25Creatinine 0.7 mg/dlAST 53.5 U/L
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Preoperative treatment
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Preoperative treatment - Anesthesia
1 ( GPS 0.1ml/kg I.M )
15~20 Atropine Sulfate 0.04 mg/kg, S.C. Zoletil50 7 mg/Kg, I.V.
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Procedure
Ventral recumbency
Draping ocular surgery
Eye wash 2~10% povidone - iodine in saline
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Procedure
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Procedure
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Procedure
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Suture
- conjunctiva, Tenons capsule, orbital septum : simple interrupted sutures of 4-0 absorbable
- subcutaneous layer : simple continuous sutures of 4-0 absorbable
- Skin : simple interrupted of 4-0 nonabsorbable
Procedure
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After surgery
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Orbital prosthesis
Implantation of silicone prosthesis after enucleation or exenteration reduces the facial distortion
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Post operative care
Elizabethan collar
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WHAT SIGNS WOULD INDICATE A PROBLEM?Infection Remaining swollen after the initial week the incision may drain pus If this occurs, the infection would require drainage and antibiotics.
If the eye was enucleated due to a severe tear or rupture, the eye may not be removed in one piece.
Sometimes a small fragment of the rear eye membranes remains behind. If enough of this tissue is present, secretion of fluid can continue and chronic oozing from the incision can be a problem. If this is excessive, the eye socket may require a second surgery to be fully cleaned out. Both these complications are very rare.
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References
Small animal surgery, Mosby, Cheryl S.Hedlund
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