It has been well known that ischemia reperfusion injury to skeletal muscle following an acute arterial occlusion causes significant morbidity and mortality. There are many causes of reperfusion injury, but the oxygen free radicals have a significant role. During ischemia the ATP is catalyzed to hypoxanthine anaerobically and hypoxanthine dehydrogenase is converted to xanthine oxidase under the presence of O2 resulting in the production of cytotoxic oxygen free radical, which are harmful to muscle. The reactivity of superoxide dismutase(SOD), one of the major antioxidant enzymes, is increased against the formation of the superoxide radical during reperfusion. SOD metabolyzes the superoxide radical to H2 O2 and O2.The severity of ischemic damage deports on the duration of muscle ischemia. The reversible changes in the muscle occur afar 2 hours of ischemia and recover within 24 hours after reperfusion. After 6 hours ischemia, irreversible damage occurs and causes necrosis of muscle. The authors performed the resent study to investigate the changes of Mn-SOD and the effects of allopurinol, the inhibitor of xanthine oxidase, by measuring the immunoreactivitiy of the ischemic reperfused rectus femoris muscle of rats after 2 hours and 6 hours ischemia and timely reperfusion. A total of 176 healthy spraque-Dawley rats weighing from 200 gm to 250 gm were used. Under urthane(3.0 gm/kg.,IP) anesthesia, a lower-abdominal incision was made and the left common iliac artery was ligated by using a vascular clamp for 2 hours and 6 hours. Rectus femoris muscle was obtained at 0 hour, 1 hour, 2 hours, 24 hours, and 48 hours after removal of the vascular clamp. The specimens were sectioned in 14micro miter thickness with a cryostat. The immunoreactivities of Mn-SOD were observed by using Mn-SOD antibodies. The result were as follows. 1. The immunoreactivies of Mn-SOD around sarcolemma were stronger than those on the sarcoplasm. 2. The immunoreactivities of Mn-S0D after 2 hours of ischemia increased to moderate or weak reactivities at 1 hour and 2 hours of reperfusion and returned to week or trace reactivities at 24 hours and 48 hours of reperfusion 3. The pretreatment of allopurinol decreased the immunoreactivies of Mn-SOD during reperfusion. The pattern of changes of SOD immunoreactivies were similar, but the range of changes significantly decreased. 4. The immunoreactivies of Mn-SOD after 6 hours of ischemia increased after 6 hours of ischemia increased after reperfusion and showed peak at 2 hours and 24 hours specimen. After 48 hours in the reperfused group, the reactivities slightly decreased. 5. After 6 hours in the ischemia-reperfused group, the pretreatment of allopurinol decreased the immunoreactivies of Mn-SOD during reperfusion, but the effects were weak. These results suggest that the immunoreactivities of the 6 hours ischemia reperfused group were higher than those of 2-hours ischemia reperfused group in the rectus femoris muscle of rats and that allopurinol pretreatment can be credited with decreasing ischemia reperfusion injury within a reversible period.
Adenosine Triphosphate ; Allopurinol ; Anesthesia ; Animals ; Antibodies ; Free Radicals ; Hypoxanthine ; Iliac Artery ; Ischemia ; Mortality ; Muscle, Skeletal ; Necrosis ; Oxygen ; Quadriceps Muscle* ; Rats* ; Reperfusion Injury* ; Reperfusion* ; Sarcolemma ; Superoxide Dismutase* ; Superoxides ; Xanthine Oxidase

Dental Occlusion ; Female ; Humans ; Incisor ; Jaw ; Lip ; Male ; Mandible ; Orthodontics ; Orthognathic Surgery ; Reference Values

Acupuncture is recognized as a component of alternative medicine and is increasingly used worldwide. Many studies have shown the various effects of acupuncture around the eyes for ophthalmologic or nonophthalmologic conditions. For ophthalmologic conditions, the effect of acupuncture on dry eye syndrome, glaucoma, myopia, amblyopia, ophthalmoplegia, allergic rhinoconjunctivitis, blepharospasm, and blepharoptosis has been reported. Recently, several studies on dry eye syndrome have been reported and are in the spotlight. However, given the variety of study designs and reported outcomes of periocular acupuncture, research is still inconclusive, and further studies are required. In addition, although a systematic and reliable safety assessment is required, to the best of our knowledge, there have been no reports of a literature review of ocular complications resulting from periocular acupuncture. This review collected cases of ocular injury as severe adverse events from previously published case reports of periocular acupuncture. A total of 14 case reports (15 eyes of 14 patients) of adverse events published between 1982 and 2020 were identified. This review article provides a summary of the reported cases and suggestions for the prevention and management of better visual function prognosis.

PURPOSE: The same autoimmune process is thought to cause thyroid associated ophthalmopathy (TAO) and Graves' disease. The aim of this study is to determine hether thyroid autoantibody is related to the development of thyroid associated ophthalmopathy. METHODS: A retrospective chart analysis was performed on patients with a newly diagnosed Graves' disease, who presented to our ophthalmology clinic between January 2006 and December 2009. Thyroid autoantibody titers were obtained at the time of diagnosis and were used to determine the presence or absence of TAO. In addition, any correlations between thyroid autoantibodies were analyzed in patients with TAO. RESULTS: Thyroid autoantibody levels correlated with the development of TAO. Fifty-eight (69%) out of 84 patients with positive thyroid-stimulating hormone receptor antibody (TRAB) levels at the time of diagnosis had TAO. Only 50 (51%) of the 99 patients with negative TRAB levels had TAO. This difference between the two groups was statistically significant (odds ratio, OR=2.2, p=0.013). A statistically significant correlation with the development of TAO was also found in thyroid peroxidase antibody (TPOAb) and anti-thyroglobulin antibody (TgAb), respectively (OR=0.5, p=0.317; OR=0.3, p=<0.001). In patients with TAO, the correlation between TPOAb and TgAb levels was very high (r=0.64, p=<0.001). CONCLUSIONS: A significant association was determined to exist between the development of TAO and thyroid autoantibody level. This result demonstrates the clinical utility of thyroid autoantibody for the diagnosis of TAO in patients with newly diagnosed Graves' disease.
Autoantibodies ; Graves Disease ; Graves Ophthalmopathy ; Humans ; Iodide Peroxidase ; Ophthalmology ; Retrospective Studies ; Thyroid Gland ; Thyrotropin ; Troleandomycin

PURPOSE: To evaluate the clinical outcomes of visual acuity and foveal thickness after vitrectomy for an idiopathic epiretinal membrane (ERM). METHODS: We retrospectively reviewed the records of 62 patients (62 eyes) with ERM who had been treated with vitrectomy between 2004 and 2009. Visual acuity and central macular thickness from optical coherence tomography imaging were obtained preoperatively and at every postoperative follow-up visit. RESULTS: Mean preoperative visual acuity and central macular thickness were 0.495 +/- 0.292 log MAR and 414.645 +/- 95.528 microm, respectively. Mean visual acuity and central macular thickness 1 month after surgery were 0.389 +/- 0.373 log MAR and 341.484 +/- 73.676 microm, respectively. Visual acuity improved within 9 months and central macular thickness significantly decreased 12 months after surgery. Most of the changes in visual acuity and central macular thickness took place during the first 3 months. The only parameter which was significantly correlated with final visual acuity was preoperative visual acuity (0.635) (p < 0.001). CONCLUSIONS: Visual acuity and central macular thickness improved 12 months months after vitrectomy in patients with idiopathic ERM. Preoperative visual acuity had a significant correlation with final visual acuity.
Epiretinal Membrane ; Follow-Up Studies ; Humans ; Hypogonadism ; Mitochondrial Diseases ; Ophthalmoplegia ; Retrospective Studies ; Tomography, Optical Coherence ; Visual Acuity ; Vitrectomy

Trigeminal neuropathy os characterized by unremitting facial pain, no evident trigger point and facial sensory change. According to Jannetta, in trigeminal neuropathy, the offending artery is not necessarily in contact with the root entry zone(REZ) but any site of the nerve. We have recently experienced a 48-year-old woman with symptoms and signs compatible with trigeminal neuropathy and explored the CP angle. SCA was crossing just anterior to the trigeminal root and one small arterial loop was lying on the pons close to the root entry zone(REZ) but neither of them was in diirect contact with the nerve. Teflon felt was inserted between the arteries and nerve and secured with silk and beriplast for fear that they should contact by changing position. Immediately after the operation the facial pain and pre-existing facial sensory change were completely gone.
Arteries ; Deception ; Facial Pain ; Female ; Fibrin Tissue Adhesive ; Humans ; Microvascular Decompression Surgery* ; Middle Aged ; Polytetrafluoroethylene ; Pons ; Silk ; Trigeminal Nerve Diseases* ; Trigeminal Neuralgia ; Trigger Points

Purpose: To evaluate the short-term ophthalmic side effects of bilateral same-day intravitreal bevacizumab injections. Methods: We retrospectively analyzed patients who underwent intravitreal bevacizumab injection in both eyes on the same day from January 2015 to June 2019. The patients were followed up at 1 day, 1 week, and 1 month after the injection. Results: A total of 281 patients (153 males and 128 females) and 562 eyes were included in the study, and 950 bilateral same-day intravitreal bevacizumab injections were performed. The mean age of patients was 58.87 ± 13.44 years. The most common cause of bilateral injection was that of complications due to diabetic retinopathy, which accounted for 66.3%, followed by age-related macular degeneration at 22.2%, retinal vein occlusion at 5.1%, and central serious chorioretinopathy at 2.1%. There were 0 cases of endophthalmitis after 950 injections, 13 cases of subconjunctival hemorrhage, and 17 patients with a temporary elevation of intraocular pressure. There were 11 patients with acute intraocular inflammation after bilateral injection, but none in both eyes. Patients with acute intraocular inflammation were followed up at short-term intervals until they improved. All patients showed complete improvement within 2 weeks after injection. Comparing the patients’ condition before and after injection, visual acuity improved (p < 0.001). Conclusions In terms of the frequency of short-term ophthalmic adverse events, bilateral same-day intravitreal bevacizumab injection is a safe procedure with fewer side effects and is more convenient for both the patient and the doctor.

Purpose: To compare the long-term changes in surgically induced astigmatism (SIA) in patients who underwent 23-gauge sutureless vitrectomy and cataract surgery together with patients who underwent cataract surgery only. Methods: We retrospectively reviewed SIA changes for 1 year after surgery in patients who received only cataract surgery using phacoemulsification (group 1) and patients who underwent 23-gauge sutureless vitrectomy and cataract surgery together (group 2). Flat keratometry (K1), steep keratometry (K2), and astigmatism axis were measured with automatic keratometry before and after the surgery. Vector analysis was used to calculate SIA at 1, 3, 6, and 12 months postoperatively. We then examined whether the SIA values at each time point were different between the two groups. Results: A total of 86 eyes were included in this study (group 1, n = 45; group 2, n = 41). The mean SIA values calculated at 1, 3, 6, and 12 months after surgery in group 1 were 0.83 ± 0.37, 0.69 ± 0.39, 0.60 ± 0.33, and 0.59 ± 0.33, respectively. In group 2, the values were 0.82 ± 0.47, 0.69 ± 0.38, 0.62 ± 0.28, and 0.61 ± 0.30, respectively. Over time, SIA decreased in both groups (all p < 0.001). There was no significant difference in the mean SIA between the two groups at each follow-up time point after surgery (p = 0.296, p = 0.728, p = 0.361, and p = 0.356, respectively). Conclusions When 23-gauge sutureless vitrectomy and cataract surgery were performed together, the astigmatism change caused by surgery did not show a significant difference compared with that of the group who received cataract surgery only. Thus, 23-gauge sutureless vitrectomy may not significantly affect corneal astigmatism.

Purpose: To evaluate the short-term ophthalmic side effects of bilateral same-day intravitreal bevacizumab injections. Methods: We retrospectively analyzed patients who underwent intravitreal bevacizumab injection in both eyes on the same day from January 2015 to June 2019. The patients were followed up at 1 day, 1 week, and 1 month after the injection. Results: A total of 281 patients (153 males and 128 females) and 562 eyes were included in the study, and 950 bilateral same-day intravitreal bevacizumab injections were performed. The mean age of patients was 58.87 ± 13.44 years. The most common cause of bilateral injection was that of complications due to diabetic retinopathy, which accounted for 66.3%, followed by age-related macular degeneration at 22.2%, retinal vein occlusion at 5.1%, and central serious chorioretinopathy at 2.1%. There were 0 cases of endophthalmitis after 950 injections, 13 cases of subconjunctival hemorrhage, and 17 patients with a temporary elevation of intraocular pressure. There were 11 patients with acute intraocular inflammation after bilateral injection, but none in both eyes. Patients with acute intraocular inflammation were followed up at short-term intervals until they improved. All patients showed complete improvement within 2 weeks after injection. Comparing the patients’ condition before and after injection, visual acuity improved (p < 0.001). Conclusions In terms of the frequency of short-term ophthalmic adverse events, bilateral same-day intravitreal bevacizumab injection is a safe procedure with fewer side effects and is more convenient for both the patient and the doctor.

Purpose: To compare the long-term changes in surgically induced astigmatism (SIA) in patients who underwent 23-gauge sutureless vitrectomy and cataract surgery together with patients who underwent cataract surgery only. Methods: We retrospectively reviewed SIA changes for 1 year after surgery in patients who received only cataract surgery using phacoemulsification (group 1) and patients who underwent 23-gauge sutureless vitrectomy and cataract surgery together (group 2). Flat keratometry (K1), steep keratometry (K2), and astigmatism axis were measured with automatic keratometry before and after the surgery. Vector analysis was used to calculate SIA at 1, 3, 6, and 12 months postoperatively. We then examined whether the SIA values at each time point were different between the two groups. Results: A total of 86 eyes were included in this study (group 1, n = 45; group 2, n = 41). The mean SIA values calculated at 1, 3, 6, and 12 months after surgery in group 1 were 0.83 ± 0.37, 0.69 ± 0.39, 0.60 ± 0.33, and 0.59 ± 0.33, respectively. In group 2, the values were 0.82 ± 0.47, 0.69 ± 0.38, 0.62 ± 0.28, and 0.61 ± 0.30, respectively. Over time, SIA decreased in both groups (all p < 0.001). There was no significant difference in the mean SIA between the two groups at each follow-up time point after surgery (p = 0.296, p = 0.728, p = 0.361, and p = 0.356, respectively). Conclusions When 23-gauge sutureless vitrectomy and cataract surgery were performed together, the astigmatism change caused by surgery did not show a significant difference compared with that of the group who received cataract surgery only. Thus, 23-gauge sutureless vitrectomy may not significantly affect corneal astigmatism.