BACKGROUND Anecdotal evidence has previously suggested that retrobulbar local anaesthetic (LA) injection is accompanied by the rapid onset of ptosis. Here the validity of this potentially valuable sign is tested. METHODS 25 patients received a retrobulbar injection and the times for development of ptosis and akinesia in other extraocular muscle groups were recorded and compared. The effects o...

PURPOSE To determine the effects of topical epinephrine and retrobulbar anesthesia containing lidocaine with epinephrine on retrobulbar hemodynamic measurements in the primate eye, using color Doppler ultrasound. METHODS Color Doppler ultrasound measurements were performed at baseline and 90 minutes after masked administration of topical 2% epinephrine or balanced salt solution to six cynomol...

PURPOSE To evaluate the effectiveness of subconjunctival anesthesia as compared to retrobulbar anesthesia for pain control during manual small-incision cataract surgery (MSICS) performed by third-year residents. DESIGN A randomized, controlled trial. PATIENTS AND METHODS A total of 150 patients undergoing routine cataract surgery were randomly assigned to receive either subconjunctival anes...

BACKGROUND/AIMS An acute immunological stress reaction was previously reported to occur after the painful setting of retrobulbar anaesthesia before intraocular surgery. This study was conducted to find out whether an oral low dose premedication with midazolam would modify the immunological stress reaction. METHODS 32 patients undergoing intraocular surgery using retrobulbar anaesthesia were i...

R etrobulbar hemorrhages may occur from facial trauma, orbital surgery, and peribulbar or retrobulbar injections. Although a retrobulbar hemorrhage reportedly occurs in less than 2% of retrobulbar anesthetic injections, it may result in a devastating loss of vision by compression of the circulation from mechanical tamponade, central retinal artery occlusion, or optic atrophy if not detected and...

PURPOSE To compare the safety and efficacy of topical plus subconjunctival versus retrobulbar anesthesia for primary non-penetrating sclerectomy supplemented with adjuntive 5-FU. METHODS A prospective study of 30 consecutive patients who were randomized to receive subconjunctival (n = 14) or retrobulbar (n = 16) anesthesia was performed. Operating conditions, patient comfort, postoperative pa...

A 14-year-old Maltese dog presented with progressive exophthalmos and external deviation of the right eye. Ultrasonography revealed the presence of a retrobulbar mass and fine-needle aspiration cytology was performed, which detected a malignant mass. There was no evidence of metastasis on thoracic and abdominal radiography. Computed tomography showed no invasion into the bony orbit and no metas...

Purpose To describe a complication of retrobulbar amphotericin B injections in the treatment of invasive rhino-orbital asperigillosis. Observations 27 year-old renal transplant recipient presented with a two-week history of headache, binocular diplopia and proptosis of the left eye. Endonasal biopsy on hospital day 3 confirmed the diagnosis of rhino-orbital invasive Aspergillus fumigatus invo...

Retrobulbar neuritis is often very complicated clinical entity. The most common cause of retrobulbar neuritis is demyelinating disease of CNS. This report is to express some other uncommon causes of it. Three children, age 8 to 12 with sudden and severe visual loss are presented. The diagnosis of retrobulbar neuritis is made by complete ophtalmological examination in consultation with neuropedi...