Dacryocystorhinostomy with Intraoperative Mitomycin C

Nowadays endscopic transnasal dacryocystorhinostomy(DCR) has been done popularly in patients who had epiphora chronically because of lacrimal obstruction. The most frequent cause of DCR failure is obstruction of osteotomy site due to formation of granuloma. We used the mitomycin C to suppress proliferation of fibroblast to increase success rate. Between July 1996 and september 1997, 15 patients(16 eyes) who had visited ophthalmology department in Seoul Advantist Hospital made went endoscopic transnasal DCR and packed merocel socked with 0.2mg/ml between 3 months to 18 months(mean 11.5 months). One case showed recurrent epiphora 2 months after surgery, and success rate was 94%. In conclusion, endoscopic transnasal DCR with Mitomycin C should be considered to suppress proliferation of granuloma and increase success rate.

Moyamoya Disease with Characteristic Funds Findings of Retinal Vascular Insufficiency

Moyamoya disease is characterized by progressive stenosis of internal carotid artery and shows unique angioraphic findings. Its etiology is still unknown, and theories of immunophysiologic and inflammatory mechanisms remain unproven. These patients show various neurologic symptons by cerebral ischemia, infarction and gemorrhage. and they also show various ophthalmologic symptoms. We experienced that a 21-year-old female who was diagnosed to have moyamoya disease presented with a suddenly developed occipital headache and neurologic deficit. The etiology of her characteristic fundus findings was thought to be retinal vascular insufficiency.

Optical Opacity by Interaction of Silicone Material and Silicone Oil in Vitro

Although the results of foldable intraocular lens are generally excellent, there are several complications. After cataract surgery with silicone lens, the patients with vitreoretinal surgery using silicone oil have not only visual acuity decrease, but also visual abberations such as halos and rainbow patterns. To report a newly defined complication, we studied the silicone lens-silicone oil interaction. The nonimplanted ilicone, acryl and PMMA lens, ten cases each, had been incubated in silicon oil at 36C for 9 months. After removal from the oil, each lens was examined and photograp hed by scanning electron microscopy every week. Appearance of lens surface and degree of adherence of the silicone oil to each IOL`s optic were estimated. Oily residue on the PMMA and acryl lens was removed easily and shown clear surface. In case of silicone lens, presence of distinct film or coating of oil was shown on the surface of both the optic and haptic component of IOL`s. They could not be removed with mechanical pressure with injected balanced saline solution and the oily residue remained strongly adherent to the optic surface. After 9 weeks, gelly-like adherence was appe ared on the silicone lens surface. As a result, the use of silicone IOL`s in patients with current vitreoretinal disease or those who are at high risk for future vitreoretinal disease that may require silicone oil as part of the therapy should be reconsidered.