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Here Drs Oetting and Shriver of the University of Iowa demonstrate the McCannel technique of fixing an IOL to the iris. In this video both the standard McCannel suture retrieval technique and the Siepser/Chang modifed technique are demonstrated. A 10-O prolene with a long curved ctc-6 needle is u...sed to place a suture through the iris and under an 3 piece IOL haptic. Using the standard technique the two ends of the suture are retrieved through a common paracentesis near the fixation site and tied externally. The other haptic is tied using the Siepser sliding knot technique as described by Chang for this indication with an internal knot. The standard technique is a bit easier but does not allow as thight a knot for fixation of the iris to the haptic.
Purpose: To evaluate the results of LASIK and IntraLASIK treatment in myopic patients with nystagmus. Methods: Eight patients with congenital nystagmus (16 eyes), from 23 to 49 years of age, underwent LASIK surgery. Corneal flaps were created using either the Hansatome microkeratome or the Intral...ase femtosecond laser. The ablations were performed with the Bausch & Lomb excimer laser with an active tracking system. In some patients, the eyes were fixated with forceps or a fixation ring during the laser ablation. Results: The refractive errors were corrected in all cases. There was no decentration or loss of best corrected visual acuity greater than 1 line. In 56% of the eyes, the post-operative uncorrected visual acuity was better than the best spectacle corrected-visual acuity (BSCVA). 62.5% of the eyes improved their BSCVA. The overall visual performance was improved in all the patients. One patient that did not not drive before become eligible to get a driver license after the surgery. Conclusions: Selected patients with myopia and congenital nystagmus may benefit from laser refractive surgery. Laser refractive surgery may be safely and accurately performed by using either the Hansatome microkeratome or the Intralase femtosecond laser and an active tracking system with or without mechanical fixation. Certain patients improve their BSCVA post-operatively.
it's a 8 years old boy with previous medical history of Sickle cell disease presented with gall stone and repeat abdominal pain. A laparoscopic cholecystectomy is performed. The cystic duct is controlled with 2 stiches of absorbable suture. The cystic artery is simply cauterized with the hook cauter...y. the specimen is removed through the umbilical port using an 10mm endobag.
A parasitic twin (also known as an asymmetrical or unequal conjoined twin) is the result of the processes that produce vanishing twins and conjoined twins, and may represent a continuum between the two. Parasitic twins occur when a twin embryo begins developing in utero, but the pair does not fully separate, and one embryo maintains dominant development at the expense of the other. Unlike conjoined twins, one ceases development during gestation and is vestigial to a mostly fully-formed, otherwise healthy individual twin. The undeveloped twin is defined as parasitic, rather than conjoined, because it is incompletely formed or wholly dependent on the body functions of the complete fetus. The independent twin is called the autosite.