Axial eye length assessment in silicone oil-filled eyes

Purpose: To compare the reliability of axial eye length [AEL] measurement in silicone oil-filled phakic eyes by conventional B-scan ultrasonography through the eyelid, after a correcting factor, to partial coherence interferometry [PCI] measurement

Methods: A prospective and comparative study was performed at Al-Zahraa University Hospital clinic from [January 2016 - December 2016]. In total 13 phakic eyes of 13 patients who underwent vitrectomy and silicone oil filling were enrolled into the study. AEL was measured by B-scan and compared to measurement by PCI

Results and Conclusions: There was no significant difference in AEL measurement by either B-scan ultrasonography through the eyelid, after a correcting factor, and PCI

Clonidine as an adjuvant for lidocaine in peribulbar block a comparison of three doses

The dose response relationship of clonidine added to lidocaine in peribulber block were assessed in 52 adult patients of both sexes, undergoing cataract surgery. They were given 7 mL mixture of 2% lidocaine with clonidine in 0.5 micro g / kg [0.5 Clon]. 1.0 micro g /kg [1.0 Clon] and 1.5 micro g / kg [1.5 Clon] doses and compared to lidocaine alone [control]. The onset and duration of lid and globe akinesia and globe anaesthesia and analgesia, adverse effects [hypotension, bradycardia, hypoxia and sedation] and postoperative analgesic requirement were recorded. The success rate and onset of block were comparable in all groups. The duration of lid and globe akinesia, globe anaesthesia and analgesia was significantly prolonged in patients receiving 1.0 and 1.5 micro g/kg clonidine as compared with the control group [P <0.01]. Perioperative pain score and analgesic requirement were significantly less in these groups, 0.5 micro g/kg clonidine did not significantly increase the duration of anaesthesia and analgesia. Hypotension and dizziness were observed more in patients receiving 1.5 mirco g /kg clonidine as compared to other groups. In conclusion, clonidine 1.0 mirco g / kg mixture with lidocaine [2%] was significantly prolonged the duration of anaesthesia and analgesia after peribulbar block with limited side effects