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Complications associated with this block are either ocular or systemic. Local ocular complications include hematoma formation, optic nerve damage and perforation of the globe with possible blindness. Systemic complications include local anesthetic toxicity, brainstem anesthesia, and stimulation of the oculocardiac reflex. Most commonly ...
Nearly all ocular surgeries viz keratoplasty, cataract extraction, glaucoma surgery, iridectomy, strabismus, [5] retinal detachment surgery etc. can be done under regional anaesthesia. Conjunctiva, globe and orbicularis can be paralysed using a combination of surface anaesthesia, facial anaesthesia and retrobulbar block. [1]
Chemical injury can occur if cleaning solutions such as povidone-iodine (Betadine), chlorhexidine or alcohol are inadvertently spilt into the eye, for example when the face, neck or shoulder is being prepped for surgery. [4] [1] Therefore, the anaesthetist ensures that the eyes are fully closed and remain closed throughout the procedure.
Improved protocols, including adherence to standardized practice, may also help ameliorate the chance and the effect of complications. [7] For example, limb protection padding and a snug tourniquet application prevents tissue damage, while sufficient but not excessive tourniquet pressure ensures that anesthetics remain within the limb without ...
This method of surgery reduced the need for an extended hospital stay and made out-patient surgery the standard. Patients who undergo cataract surgery rarely complain of pain or discomfort during the procedure, although those who have topical anaesthesia, rather than peribulbar block anaesthesia, may experience some discomfort. [8]
A recent FDA draft recommends that patients be better warned of potential complications ahead of undergoing LASIK surgery. LASIK is an elective procedure that corrects people’s vision, allowing ...
Fuchs heterochromic iridocyclitis (FHI) is a chronic unilateral uveitis appearing with the triad of heterochromia, predisposition to cataract and glaucoma, and keratitic precipitates on the posterior corneal surface. Patients are often asymptomatic and the disease is often discovered through investigation of the cause of the heterochromia or ...
Cataract formation – cataract surgery if visually significant Small encapsulated bleb – injection of subconjunctival MMC and lidocaine can balloon up adjacent conjunctiva followed by needle incision of the bleb side and bleb extension; alternatively or together, the use of biodegradable spacer or ologen collagen matrix implant may be ...