Term
| What is the purpose of an Iridectomy? |
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Definition
| Reestablishing the flow of aqueous humor? |
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Term
| Name the procedure often performed at the same time as an Iridectomy? |
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Definition
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Term
| What is trabecular meshwork? |
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Definition
| It is a meshwork of connective tissue which allows aqueous humor to exit the anterior chamber of the eye through Schlemm's Canal. |
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Term
| What is the purpose of aqueous humor? |
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Definition
| To provide nourishment & maintain the shape of the eye. |
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Term
| The inability of aqueous fluid to flow out of the anterior chamber of the eye is called? |
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Definition
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Term
| If Angle Closure Glaucoma is untreated, what does it lead to? |
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Definition
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Term
| Why does Angle Closure Glaucoma lead to blindness? |
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Definition
| Too much trapped fluid places extreme pressure on the optic nerve. |
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Term
| Name three types of Iridectomy procedures? |
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Definition
| Peripheral, Radial, & Sector |
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Term
| Before incision is made the patient's IOP is measured with a tonometer. If too high what does the surgeon do? |
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Definition
| Administer hyperosmotic agents to reduce the IOP (e.g. mannitol, acetazolamide) |
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Term
| What is the least invasive Iridectomy? |
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Definition
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Term
| What is a common side effect of a laser Iridectomy? |
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Definition
| Increased intraocular pressure (IOP), & anterior uveitis (inflammation of the middle layer of the eye) |
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Term
| Name the forceps helpful in grasping the sclera? |
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Definition
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Term
| Name the dull muscle hook used for the procedure? |
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Definition
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Term
| What may be used to decrease post operative fibrosis? |
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Definition
| A sponge soaked in the chemotherapeutic agent 5-FU & mitomycin. |
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Term
| What special precautions should be taken if 5-FU is used? |
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Definition
1) The site is thoroughly irrigated with BSS & instruments exposed are removed from the field.
2) Disposal of items contaminated in hazardous waste & decontamination of instruments.
3) Hand off instruments in basin, but keep until the end of the procedure.
4) Change gloves |
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