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Eyelid Defects: Trauma, Masses   319


                                                                                  Possible Complications
                                                                                  •  Poor apposition of eyelid margin results in
  VetBooks.ir                                                                       entropion or ectropion, or step to eyelid   Diseases and   Disorders
                                                                                    cicatrix  (scar)  formation,  predisposing  to
                                                                                    margin, resulting in corneal irritation and
                                                                                    ulceration.
                                                                                  •  Improperly  placed  sutures  at  the  eyelid
                                                                                    margin can predispose to corneal ulceration.
                                                                                  •  Local regrowth of eyelid mass if mass not
                                                                                    completely removed
                                                                                  Recommended Monitoring
                                                                                  Re-evaluate apposition of eyelid margin, and
                                                                                  remove skin sutures 10 days after surgery.
                                                                                   PROGNOSIS & OUTCOME

                                                                                  •  Eyelid laceration: prognosis good if apposi-
                                                                                    tion of eyelid margin is achieved.
                                                                                  •  Removal of eyelid neoplasm: dogs, prognosis
                                                                                    good, majority are benign; cats, prognosis
                   EYELID DEFECTS  Eyelid mass. (Courtesy Dr. Phillip A. Moore, Auburn University.)  guarded, majority are malignant.
                                                                                  •  Local recurrence is possible if an eyelid mass
                                                                                    is not completely excised.

                                                                                   PEARLS & CONSIDERATIONS
             lid margin; confirmation of the nature of the   •  If  full-thickness  laceration,  close  in  two
             mass requires cytologic and/or histopatho-  layers (conjunctiva/deep stroma, then skin)   Comments
             logic assessment.                  starting at eyelid margin with a figure-eight   •  Eyelid lacerations are treated surgically as an
                                                suture to ensure accurate apposition of eyelid    emergency, not as open wounds, to prevent
           Differential Diagnosis               margin.                             eyelid scarring, contraction, and distortion
           Eyelid swelling:                     ○   No suture should penetrate the palpebral   of the eyelid margin.
           •  Anaphylaxis                         conjunctiva and contact the cornea.  •  Eyelid masses should be removed early to
           •  Conjunctival/subpalpebral foreign body  Eyelid mass (neoplastic):     prevent the need for plasty procedures.
                                               •  Surgical removal
           Initial Database                     ○   If involves eyelid margin and ≤ ⅓ length of   Prevention
           Complete ophthalmic examination (p. 1137):  eyelid, remove by a full-thickness V-shaped   Limit actinic radiation (sunlight) exposure in
           •  Schirmer tear test                  or house-shaped excision        white cats to decrease the potential for SCC.
           •  Fluorescein  dye  application  evaluating  for   ○   Close in two layers (see above).
             corneal ulceration secondary to trauma  ○   Eyelid margin mass  > ⅓ eyelid length   Technician Tips
           •  Intraocular pressures               requires a plasty procedure to ensure   Dogs  that  have  had  eyelid  surgery  should
           •  Examination of periocular (e.g., conjunctiva)   proper  eyelid  length  (i.e.,  H-plasty,   wear  an  Elizabethan  collar  until  the  sutures
             and intraocular structures, especially if   semicircular flap, or lip-to-eyelid rotational   are removed.
             trauma suspected                     graft). Consider referral to ophthalmolo-
           •  Examination of eyelid margin for extent of   gist or surgeon.       Client Education
             laceration or extent and point of origin of   •  Cryosurgery with curettage  Recurrence is possible after the removal of any
             mass                               ○   Useful for benign eyelid mass in older   eyelid mass.
                                                  animals
           Advanced or Confirmatory Testing     ○   May be performed under sedation  SUGGESTED READING
           •  Fine-needle aspiration and cytologic evalu-  ○   Recurrence rate higher with cryotherapy   Maggs  DJ:  Eyelids.  In  Maggs  DL,  et  al,  editors:
             ation of eyelid masses               than with full-thickness excision  Slatter’s Fundamentals of veterinary ophthalmology,
           •  Histopathologic evaluation of all surgically   ○   May  also  be  effective for  small SCC  in    ed 5, St. Louis, 2013, Elsevier, p 110.
             removed eyelid masses                cats                            AUTHOR: Phillip A. Moore, DVM, DACVO
                                               Eyelid mass (chalazion):           EDITOR: Diane V. H. Hendrix, DVM, DACVO
            TREATMENT                          •  Medical therapy with neomycin-polymyxin-
                                                dexamethasone ophthalmic ointment q 8h in
           Treatment Overview                   combination with warm compresses several
           Treatment goals are to restore normal eyelid   times a day may be attempted initially.
           conformation, eliminate ocular irritation, and   •  Surgical treatment if no response to medical
           prevent recurrence of eyelid mass. Treatment   therapy
           for an eyelid mass should be initiated early   ○   Scalpel  incision  of  overlying  palpebral
           in the course of the disease to ensure normal   conjunctiva with curettage; heals by
           eyelid conformation.                   second intention
                                               •  Topical   antibiotic/corticosteroid   (e.g.,
           Acute General Treatment              neomycin-polymyxin-dexamethasone
           Eyelid trauma:                       suspension or ointment) q 8h for 7 days
           •  Laceration requires primary/surgical closure   after surgery; corticosteroid contraindicated
             of wound.                          if cornea is not intact.

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