What kind of anesthesia is used for glaucoma surgery?
The different types of anesthesia for glaucoma surgery are general anesthesia, local anesthesia or topical anesthesia. In children, general anesthesia has an absolute indication, whatever the surgical procedure to be used.
What is a trabeculectomy with MMC?
Background: Trabeculectomy is performed as a treatment for glaucoma to lower the intraocular pressure (IOP). Mitomycin C (MMC) is an antimetabolite used during the initial stages of a trabeculectomy to prevent excessive postoperative scarring and thus reduce the risk of failure.
What is the difference between trabeculoplasty and trabeculectomy?
Regression analysis showed that in both populations laser trabeculoplasty was effective in reducing the intraocular pressure but it was less effective than trabeculectomy in permanently reducing the intraocular pressure to within normal limits.
How long does a trabeculectomy procedure take?
Surgery should last between 45 and 60 minutes. After the procedure, your eye will be patched and shielded until your follow-up appointment with your surgeon the next day.
Are you sedated for glaucoma surgery?
The surgeon will create a tiny opening in the top of your eye, under your eyelid where no one will see it. This opening allows extra fluid in your eye to drain away, lowering pressure in your eye. Usually, you’ll be awake during this surgery — but you’ll get numbing medicine and medicine to help you relax.
How do you prepare mitomycin C 0.22 for trabeculectomy?
Our preparation of the mitomycin-C includes mixing the drug with a sterile water diluent to achieve a starting concentration of 0.2 mg/ml. This is then diluted further with 2% lidocaine—the same lidocaine we would use in a retrobulbar block.
When is a trabeculectomy performed?
Your doctor may recommend a trabeculectomy if your IOP is unresponsive to standard glaucoma treatments like prescription eye drops or medication. Trabeculectomy is used to create a new channel, or “bleb,” through which fluid can drain from the eye.
How is trabeculectomy performed?
When performing trabeculectomy, an eye surgeon creates a flap in the sclera — the white part of the eye — underneath the upper eyelid. Underneath this flap, a pathway is created to allow fluid to drain, which lowers eye pressure.
What medications may be adjusted during a trabeculectomy?
For example, adjustments to anti-hypertensive or anti-coagulant medications may be made, and topical ocular medications adjusted. Choice of anesthesia technique is of particular relevance to the trabeculectomy patient.
What are the possible complications of trabeculectomy in glaucoma patients?
Choice of anesthesia technique is of particular relevance to the trabeculectomy patient. Some anesthesia techniques are more likely to have serious complications, and glaucoma patients may be at higher risk of some sight-threatening complications, because the optic nerve is already damaged and vulnerable.
Is subconjunctival-intracameral anesthesia for trabeculectomy better?
Regarding long-term control of intraocular pressure, there is no good evidence to indicate that any particular anesthesia technique is better than another. There is little high-quality evidence on this topic. The author’s preferred technique for trabeculectomy is subconjunctival-intracameral anesthesia without sedation.
What is the difference between topical and injectable dental anesthesia?
Topical Anesthetics for Dental Hygiene Procedures. Topical anesthetics only provide soft tissue anesthesia, and the depth and duration of anesthesia are less than are provided by injectable anesthetics. Topical anesthetics may contain a variety of drugs including benzocaine, butamben, dyclonine hydrochloride, lidocaine, prilocaine, and tetracaine.