PURPOSE: To compare and analyze the clinical outcomes after the traditional mini-flap technique and a new modified mini-flap technique for pterygium surgery. METHODS: This is a retrospective, clinical outcome study of 39 eyes that received the existing mini-flap technique from January, 2004 to August, 2005, and 142 eyes that received the modified mini-flap technique from September, 2008 to December, 2010. We analyzed the recurrence rate of each mini-flap technique and the difference between the group that experienced recurrence and the group that did not. We also analyzed the difference between the group that received the mini-flap technique and the group that received the modified mini-flap technique. RESULTS: The recurrence rate of pterygium patients who received the mini-flap technique was 10.3% (4/39). The rate of those who received the modified mini-flap technique was 2.1% (3/142), which is statistically lower (p = 0.040). However, compared from the recurrence rate of 6.1% (3/49) that was reported in 2008, the recurrence rate of the modified mini-flap technique did not show any statistical significance (p = 0.165). From the comparison of demographic factors of the patients in each surgical technique group, in both recurred and not recurred group, the patient group in the modified mini-flap technique group whose pterygium was recurrd was the youngest (p < 0.001). CONCLUSIONS: The newly applied modified mini-flap technique is not only a safe method with low recurrence rate compared to the traditional mini-flap technique, but also a reliable surgical technique in both primary and recurred pterygium.
Demography ; Eye ; Humans ; Outcome Assessment (Health Care) ; Pterygium ; Recurrence ; Retrospective Studies

PURPOSE: To describe the characteristics and investigate the differences of higher-order aberrations (HOAs) between the eyes with a natural, uncorrected visual acuity (UCVA) of 20/12 and eyes with highly myopic eyes in Korean adults. METHODS: Thirty-one eyes of 20 subjects with UCVA of 20/12 (Group 1) and 54 eyes of 36 myopic patients with greater than -6 diopters (Group 2) were analyzed for type and magnitude of HOAs across a 6.0 mm pupil. HOAs were measured by Wavescan (VISX, Santa Clara, CA, USA) in natural scotopic conditions and were presented as root-mean-square (RMS: micrometer) in Belle aberration maps. RESULTS: The mean spherical equivalent (SE) of manifest refraction was -0.15+/-0.25 D (range: +0.37 to -0.50 D) in Group 1 and -7.25+/-0.78 D (range: -6.00 to -9.25 D) in Group 2. The total root-mean-square (RMS) values of HOAs for Group 1 and Group 2 were 0.28+/-0.09 micrometer and 0.27+/-0.087 micrometer, respectively (P>0.05). The mean values of coma, trefoil, and spherical aberration were 0.14+/-0.091 micrometer, 0.14+/-0.089 micrometer, 0.091+/-0.059 micrometer in Group 1 and 0.16+/-0.077 micrometer, 0.14+/-0.073 micrometer, 0.082+/-0.059 micrometer in Group 2, respectively. CONCLUSIONS: This study helped establish ocular aberration standards for those with natural supervision and those with highly myopic eyes among Koreans. Individuals with natural supervision had significant amounts of HOAs, and there was no significant difference in the amount of HOAs between the two groups. The index of higher-order aberrations may not be a perfect predictor of the amount of refractive error.
Adult ; Cornea/*physiopathology ; Diagnostic Techniques, Ophthalmological ; Female ; Humans ; Korea/epidemiology ; Male ; *Myopia/diagnosis/epidemiology/physiopathology ; Prevalence ; *Refraction, Ocular ; Severity of Illness Index ; Surface Properties ; Visual Acuity

PURPOSE: To describe the characteristics and investigate the differences of higher-order aberrations (HOAs) between the eyes with a natural, uncorrected visual acuity (UCVA) of 20/12 and eyes with highly myopic eyes in Korean adults. METHODS: Thirty-one eyes of 20 subjects with UCVA of 20/12 (Group 1) and 54 eyes of 36 myopic patients with greater than -6 diopters (Group 2) were analyzed for type and magnitude of HOAs across a 6.0 mm pupil. HOAs were measured by Wavescan (VISX, Santa Clara, CA, USA) in natural scotopic conditions and were presented as root-mean-square (RMS: micrometer) in Belle aberration maps. RESULTS: The mean spherical equivalent (SE) of manifest refraction was -0.15+/-0.25 D (range: +0.37 to -0.50 D) in Group 1 and -7.25+/-0.78 D (range: -6.00 to -9.25 D) in Group 2. The total root-mean-square (RMS) values of HOAs for Group 1 and Group 2 were 0.28+/-0.09 micrometer and 0.27+/-0.087 micrometer, respectively (P>0.05). The mean values of coma, trefoil, and spherical aberration were 0.14+/-0.091 micrometer, 0.14+/-0.089 micrometer, 0.091+/-0.059 micrometer in Group 1 and 0.16+/-0.077 micrometer, 0.14+/-0.073 micrometer, 0.082+/-0.059 micrometer in Group 2, respectively. CONCLUSIONS: This study helped establish ocular aberration standards for those with natural supervision and those with highly myopic eyes among Koreans. Individuals with natural supervision had significant amounts of HOAs, and there was no significant difference in the amount of HOAs between the two groups. The index of higher-order aberrations may not be a perfect predictor of the amount of refractive error.
Adult ; Cornea/*physiopathology ; Diagnostic Techniques, Ophthalmological ; Female ; Humans ; Korea/epidemiology ; Male ; *Myopia/diagnosis/epidemiology/physiopathology ; Prevalence ; *Refraction, Ocular ; Severity of Illness Index ; Surface Properties ; Visual Acuity

PURPOSE: To compare corneal sensitivity and recovery of corneal innervations after a temporal clear corneal incision in cataract surgery. METHODS: We measured changes to corneal sensitivity using Cochet-Bonnet esthesiometer in 25 eyes of 20 patients and analyzed corneal nerve density with confocal microscopy in 20 eyes of 20 patients who had undergone cataract surgery. The parameters were measured before, and at 1 week, 1 month, and 3 months after cataract surgery. RESULTS: The mean preoperative corneal sensitivity was 56.40+/-3.39 mm at the temporal corneal incision site, and there was a significantly decreased sensitivity of 29.80+/-2.69 mm and 42.40+/-4.36 mm postoperatively at 1 week and 1 month, respectively. Nonetheless, by three months, corneal sensitivity had returned to 56.00+/-2.89 mm and was not significantly different from measurements prior to the cataract surgery. The mean preoperative subbasal nerve density was 5296+/-1642 micrometer/mm2. After cataract surgery, the subbasal nerve density was significantly reduced to 4113+/-1421, 3555+/-1448, 4198+/-1239 micrometer/mm2 at 1 week, 1 month, and 3 months, respectively. CONCLUSIONS: Corneal sensitivity after cataract surgery returned to near preoperative levels within 3 months before complete restoration of normal corneal innervations. Therefore, regeneration of subbasal nerve fibers (, as determined by confocal microscopy,) requires more time than the return of corneal sensation after cataract surgery.
Cataract* ; Humans ; Microscopy, Confocal ; Nerve Fibers ; Regeneration ; Sensation

PURPOSE: To compare corneal sensitivity and recovery of corneal innervations after a temporal clear corneal incision in cataract surgery. METHODS: We measured changes to corneal sensitivity using Cochet-Bonnet esthesiometer in 25 eyes of 20 patients and analyzed corneal nerve density with confocal microscopy in 20 eyes of 20 patients who had undergone cataract surgery. The parameters were measured before, and at 1 week, 1 month, and 3 months after cataract surgery. RESULTS: The mean preoperative corneal sensitivity was 56.40+/-3.39 mm at the temporal corneal incision site, and there was a significantly decreased sensitivity of 29.80+/-2.69 mm and 42.40+/-4.36 mm postoperatively at 1 week and 1 month, respectively. Nonetheless, by three months, corneal sensitivity had returned to 56.00+/-2.89 mm and was not significantly different from measurements prior to the cataract surgery. The mean preoperative subbasal nerve density was 5296+/-1642 micrometer/mm2. After cataract surgery, the subbasal nerve density was significantly reduced to 4113+/-1421, 3555+/-1448, 4198+/-1239 micrometer/mm2 at 1 week, 1 month, and 3 months, respectively. CONCLUSIONS: Corneal sensitivity after cataract surgery returned to near preoperative levels within 3 months before complete restoration of normal corneal innervations. Therefore, regeneration of subbasal nerve fibers (, as determined by confocal microscopy,) requires more time than the return of corneal sensation after cataract surgery.
Cataract* ; Humans ; Microscopy, Confocal ; Nerve Fibers ; Regeneration ; Sensation

In this study of the inhibitory effects of angiopeptin and aspirin on the development of accelerated graft atherosclerosis (AGAS), 22 B10.BR mice received intra-abdominal heterotopic heart transplants from B10.A mice, without immunosuppression. Group 1 (n = 5) received no pharmacological intervention, Group 2 (n = 6) was treated with angiopeptin, Group 3 (n = 5) with aspirin, and Group 4 (n = 6) with both. There was no significant difference in the incidence of AGAS among these groups. The magnitude of intimal lesion development showed less narrowing of large vessels (> 100 microns in diameter) in groups 2 and 4--i.e. the groups received angiopeptin (Group 1 = 46.9 +/- 9.3%, Group 2 = 28.5 +/- 9.2%, Group 3 = 44.1 +/- 10.9%, Group 4 = 24.2 +/- 5.9%; p < 0.01). Comparison of the fraction of tropomyosin-positive staining cells in the intima revealed a lesser degree of staining in Group 2 (p < 0.01). No intervention was effective in preventing smooth muscle cell proliferation in the media or inflammatory cell infiltration in the adventitia. In conclusion, our data suggest that angiopeptin is effective in the direct inhibition of intimal smooth muscle cell proliferation in relatively large vessels, whereas aspirin exhibits no inhibitory role in the progression of AGAS. Angiopeptin appears to be a potential therapeutic agent for inhibiting the progression of postoperative AGAS in clinical heart transplantation.
Animal ; Aspirin/pharmacology* ; Cardiovascular Agents/pharmacology* ; Coronary Arteriosclerosis/pathology ; Coronary Arteriosclerosis/immunology* ; Coronary Vessels/pathology ; Coronary Vessels/drug effects ; Heart/drug effects* ; Heart Transplantation/immunology* ; Immunohistochemistry ; Mice ; Mice, Inbred Strains ; Myocardium/pathology ; Myocardium/immunology ; Oligopeptides/pharmacology* ; Somatostatin/pharmacology ; Somatostatin/analogs & derivatives* ; Transplantation, Homologous/immunology ; Tropomyosin/metabolism

Transposition of the great arteries with intact ventricular septum (TGA IVS) is a cyanotic congenital heart disease with high neonatal mortality without early diagnosis. But TGA IVS is known to have good prognosis if treated by arterial switch operation (ASO) within 2 weeks after birth with early diagnosis. We diagnosed two cases of TGA IVS prenatally by fetal echocardiography. A case was diagnosed at 26th weeks of gestation, and the mother was transferred to a cardiac center for planned delivery. The baby had received ASO on postpartum 7th day, but he died of right ventricular failure on postoperative 8th day. The second case was diagnosed at 37th gestational weeks and was transferred to Asan medical center immediately after birth. And he is doing well without any treatment after ASO.
Arteries* ; Chungcheongnam-do ; Early Diagnosis ; Echocardiography ; Heart Defects, Congenital ; Humans ; Infant ; Infant Mortality ; Mothers ; Parturition ; Postpartum Period ; Pregnancy ; Prenatal Diagnosis ; Prognosis ; Ventricular Septum*

BACKGROUND AND OBJECTIVES: The impact on long-term adverse cardiac events of troponin T (TnT) or creatine kinase-MB (CK-MB) release after percutaneous transluminal coronary angioplasty (PTCA) is not well defined. The purpose of the study is to evaluate the effect of elevated TnT or CK-MB on the late major adverse cardiac events [MACE ; Q wave myocardial infarction (MI), revascularization, or cardiac death]. SUBJECTS AND METHODS: Study population were 207 consecutive patients (M : F=148 : 59, mean 60.8+/-9.2 years) who underwent PTCA. Patients with acute MI, unstable angina with abnormal levels of TnT or CK-MB, or newly developed Q MI after PTCA were excluded. Cardiac enzyme levels were measured before and 8, 24 hours after PTCA for CK-MB, and before and 16 hours after PTCA for TnT. Group I (n=181, 87.4%) had normal levels of both after PTCA. Group II (n=26, 12.6%) had abnormal levels of CK-MB (>or=16 U/L) and/or TnT (>or=0.2 ng/mL). 1-year follow-up was available in 201 (97.1%) patients. RESULTS: Incidence of non-Q MI after PTCA was 26/207 (12.6%). Major complications such as acute coronary occlusion, side branch occlusion, and major dissection were significantly associated with elevation of TnT or CK-MB after PTCA (p=0.01). However, elevation of CK-MB or TnT was not significantly associated with late MACE by Kaplan-Meier survival curve (p=0.46). During 1-year follow-up, event free rate of group I and II were 76.6% and 69.2%, respectively. CONCLUSION: Acute coronary occlusion, side branch occlusion, or major dissection can increase the level of TnT or CK-MB after PTCA. But, elevation of CK-MB or TnT after PTCA dose not significantly influence on late MACE.
Angina, Unstable ; Angioplasty ; Angioplasty, Balloon, Coronary* ; Coronary Occlusion ; Creatine Kinase ; Creatine* ; Follow-Up Studies ; Humans ; Incidence ; Myocardial Infarction ; Trinitrotoluene ; Troponin T* ; Troponin*

PURPOSE: The purpose of this study was to investigate the clinical efficacy of an optimized prolate ablation procedure for correcting residual refractive errors following laser surgery. METHODS: We analyzed 24 eyes of 15 patients who underwent an optimized prolate ablation procedure for the correction of residual refractive errors following laser in situ keratomileusis, laser-assisted subepithelial keratectomy, or photorefractive keratectomy surgeries. Preoperative ophthalmic examinations were performed, and uncorrected distance visual acuity, corrected distance visual acuity, manifest refraction values (sphere, cylinder, and spherical equivalent), point spread function, modulation transfer function, corneal asphericity (Q value), ocular aberrations, and corneal haze measurements were obtained postoperatively at 1, 3, and 6 months. RESULTS: Uncorrected distance visual acuity improved and refractive errors decreased significantly at 1, 3, and 6 months postoperatively. Total coma aberration increased at 3 and 6 months postoperatively, while changes in all other aberrations were not statistically significant. Similarly, no significant changes in point spread function were detected, but modulation transfer function increased significantly at the postoperative time points measured. CONCLUSIONS: The optimized prolate ablation procedure was effective in terms of improving visual acuity and objective visual performance for the correction of persistent refractive errors following laser surgery.
Coma ; Humans ; Keratectomy, Subepithelial, Laser-Assisted ; Keratomileusis, Laser In Situ ; Laser Therapy* ; Phosmet* ; Photorefractive Keratectomy ; Refractive Errors* ; Refractive Surgical Procedures ; Treatment Outcome ; Visual Acuity

To investigate the pathogenesis of accelerated graft atherosclerosis after rdiac transplantation, a genetically well-defined and reproducible animal del is required. We performed heterotopic intraabdominal heart transplantation tween the two inbred strains of mice. Forty hearts from B10.A mice were ansplanted into B10.BR mice. Recipients were sacrificed at 1, 3, 5, 7, 14, 28, d 42 days after implantation. The specimens from both donor and recipient were amined with fluorescent immunohistochemistry and the serial histopathologic anges were evaluated. In the donor hearts, ICAM-1 and VCAM-1 expressions were nimal at day 1 and they gradually increased, reaching their peaks on day 5 or and remained unchanged by day 42. However, there were very little expressions the recipients' hearts. Mean percent areas of intima in the donor coronaries vealed progressive increase by day 42. However, those in the recipients cupied consistently less than 5% of the lumen. In conclusion, we demonstrated at a heterotopic murine heart transplantation model was a useful tool to oduce transplantation coronary artery disease and that adhesion molecules on e cardiac allografts were activated very early and remained elevated at all me-points, nonetheless the arterial lesion was detected after day 28 and its ogression was accelerated thereafter.
Animal ; Coronary Vessels/pathology ; Heart Transplantation*/pathology ; Intercellular Adhesion Molecule-1/biosynthesis* ; Mice ; Myocardium/pathology ; Myocardium/metabolism* ; Time Factors ; Transplantation, Heterotopic*/pathology ; Vascular Cell Adhesion Molecule-1/biosynthesis*