Term
| When do we not use lubricating ointment in the eye for surgery? |
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Definition
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Term
| Which optho surgery do we use lubricating ointment for? |
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Definition
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Term
| What kind of scrub do we use for optho surgery? |
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Definition
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Term
| Why do we not use Chlorhexidine scrub for optho surgery? |
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Definition
| -it is toxic to the cornea |
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Term
| Which type of forceps do we use for conjunctiva and eyelids? Which kind do we use for nictitans? |
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Definition
-Bishop-Harmon
-Von-Graefe |
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Term
| What is the purpose of a Chalazion clamp? |
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Definition
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Term
| What do we use strabismus scissors for? |
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Definition
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Term
| What do we use WEstcott scissors for? |
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Definition
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Term
| What do we use a strabismus hook for? |
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Definition
| -eyelid retractor, rolling out the eyelid margins with a proptosed glove |
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Term
| Why does a strabsimus hook have a blunted end? |
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Definition
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Term
| What do we use a Chalazion clamp for? |
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Definition
| -chronically impacted Meibomian gland |
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Term
| In general, how do we care for delicate opthalmic surgical instruments? |
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Definition
-rinse immediately after use with distilled water
-clean delicate instruments alone in an ultrasonic cleaner never stacking the instruments on each other
-rinse with distilled water and soak in instrument milk -> allow to air dry =? pack carefully with instruments separated
-ALWAYS USE TIP COVERS |
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Term
| Which size of suture do we use for conjunctiva and skin in dogs and cats? What about in horses? |
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Definition
-6-0 to 5-0 in dogs and cats
-5-0 horse conjunctiva and 4-0 skin in horses |
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Term
| What is special about the needles we use for eye surgery? |
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Definition
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Term
| For what do we use spatula needles? |
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Definition
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Term
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Definition
| -removal fo the globe and adnexa |
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Term
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Definition
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Term
| What are the indications of an enucleation? |
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Definition
-permanently blind and painful eye
-permanently blind eye due to trauma in a cat
-invasive neoplasia of the globe or eyelids |
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Term
| Describe a transpalpebral enucleation. |
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Definition
| -going through the eyelids to reach the globe |
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Term
| When do we specifically us a transpalpebral enucleation? |
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Definition
-infected corneas or globes to keep infection contained
-useful for lobe with extensive neoplasia |
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Term
| Describe a transconjuncival enucleation. |
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Definition
| -going through the conjunctiva to remove the globe and removing the eyelids and nictitans after globe removal |
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Term
| When do we specifically use a transconjuntival enucleation? |
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Definition
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Term
| True or False: Some complications, but not all, of enucleations are preventable. |
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Definition
| -FALSE, ALL complications are preventable |
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Term
| How do we prevent infection of the ocular surgical site. |
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Definition
-proper surgical clipping and sterile prep
-perioperative antibiotics if skin or globe infection is a concern
-if an infected globe ruptures during removal, perform immediate culture of the orbit and copious irrigation of the orbit, start parenteral antibiotic, aways perform primary closure, do not leave open or insert a drain
-cyst or serous fluid accumulation in the orbit from incomplete removal of the nictitans gland
-non-healing hole at the medial canthus from incomplete skin removal
-extrusion of an infraorbital prosthesis |
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Term
| How do we prevent and extrusion of an intraorbital prosthesis? |
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Definition
-use a secure, periorbital layer closure over the prosthesis
-shave 1/3 of prosthesis with flat surface facing out |
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Term
| HOw can we blind the healthy eye during an enucleation? Is it permanent? In which species is it particularly common? |
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Definition
-excessive traction on the globe/optic nerve during enucleation
-permanent
-often occurs in cats |
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Term
| How do we avoid causing blindness in the remaining eye during an enucleation? |
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Definition
-clamp pedicle => remove clamp => slide scissors in where clamp was => cut pedicle
-cut pedicle without using clamps
-partially deflate the globe first |
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Term
| What is temporary tarsorrhapthy? |
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Definition
| -suturing the eyelids closed without removal of the eyelid margins |
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Term
| What is the purpose of temporary tarsorrhaphy? |
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Definition
| -provides temporary protection to the globe |
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Term
| What are the indications for temporary tarsorrhaphy? |
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Definition
-following globe proptosis (SA)
-facial nerve paralysis (LA especially camelids)
-corneal ulcers (cattle |
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Term
| What do we use to guide us for temporary tarsorrhaphy sutures? |
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Definition
| -meibomian gland openings |
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Term
| What are the indications of tumor excision or eyelid laceration? |
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Definition
-eyelid mass excision when direct closure is possible
-excision of a cicatricial eyelid scar creating hair irritation to the cornea
-repair of an eyelid laceration |
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Term
| What are some of the possible complications of eyelid laceration or tumor excision surgery? |
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Definition
-suture irritation to the cornea: make tight figure 8
=Step-defect at the eyelid margin
-gapping at the eyelid margin |
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