We studied the change in intraocular pressure (IOP) in 15 consecutive cataract patients who underwent extracapsular cataract extraction and posterior chamber lens implantation between Feb. 1993 and Apr. 1993 to evaluate the effect of this surgery on postoperative IOP. To evaluate the clinical usefulness of non-contact tonometer, the intraocular pressures were measured with Kowa non-contact tonometer (TM-2000, Japan) as well as Goldmann applanation tonometer. There was a decrease in IOP of 3.4±2.9mmHg (p<0.001) 3 months after this surgery and the intraocular pressure differences between pseudophakic eyes and contralateral phakin eyes at 3 months postoperatively were 2.4±3.8mmHg (p<0.05). The correlation coefficient between non-contact tonometer and Goldmann tonometer was 0.8876 (p=0.001) in the postoperative 76 eyes. Therefore, out results suggest that extracapsular cataract extraction and posterior chamber lens implantation alone can be a useful surgical method in cataract patient with ocular hypertension, and non-contact tonometer was relatively accurate in measuring the postoperative intraocular pressure.
Cataract Extraction* ; Cataract* ; Humans ; Intraocular Pressure* ; Methods ; Ocular Hypertension

These days the posterior chamber lens implantation following the extracapsular cataract extraction has become the standard procedure except those patients who cannot take it in one reason or another. In past, however, the anterior chamber lens implantation was popular for sometimes. Even now in those patient complicated by vitreous loss, the anterior chamber lens implantation following anterior vitrectomy is indicated in some cases. We have become interested in the difference of the intraocular pressure change in the patients who underwent the uneventful extra-capsular cataract extraction followed by anterior chamber lens implantation in routine manner and in those whose extra-capsular cataract extraction were complicated by vitreous loss and eventually needed the anterior vitrectomy before the anterior chamber lens implantation. We reviewed the medical records of 15 cases of the former group and 11 cases of the latter one in 1986 through 1988. There was some difference in the postoperative pressure in the two groups, but it was not statistically significant.
Anterior Chamber* ; Cataract Extraction* ; Cataract* ; Humans ; Intraocular Pressure* ; Medical Records ; Vitrectomy

No abstract available.
Animals ; Cryopreservation* ; Embryonic Structures* ; Mice* ; Ovum*

PURPOSE: To identify the prognostic factors for successful laser iridotomy for acute angle-closure glaucoma (AACG). METHODS: We retrospectively reviewed the medical records of 77 eyes of 77 patients with AACG with initial intraocular pressure (IOP) above 40 mmHg. All of the patients received maximum tolerable medical therapy (MTMT) followed by laser iridotomy. In order to comparatively analyze the factors affecting successful laser iridotomy, an increase in IOP on follow-up was defined as increase in IOP greater than 21 mmHg requiring medical or surgical treatment. RESULTS: Successful laser iridotomy was achieved in 59.7% (46/77 eyes). Thirty-one eyes (40.3%) exhibited increased IOP on follow-up, and of these, 30 eyes developed an increase in IOP within six months after the first attack. The success rate was higher (92.9%) in 42 patients who had greater than 30% IOP reduction by MTMT at the first attack compared to the 35 patients whose IOP reduction was less than 30%, of which 24 eyes (72.7%) showed more than 30% IOP reduction after intravenous hyperosmotic agent treatment (p=0.012). The success rate was higher in patients treated within seven days after the development of symptoms than in those treated after seven days (Odds ratio, 4.51; 95% confidence interval, 1.38 to 14.75). CONCLUSIONS: Our data suggest that we can expect successful IOP control after laser iridotomy in eyes with AACG if the patient can be treated within seven days after the development of symptoms and if the IOP reduction was more than 30% by MTMT.
Acute Disease ; Adult ; Aged ; Aged, 80 and over ; Female ; Filtering Surgery/*methods ; Follow-Up Studies ; Glaucoma, Angle-Closure/physiopathology/*surgery ; Humans ; Intraocular Pressure/physiology ; Iris/*surgery ; Laser Therapy/*methods ; Male ; Middle Aged ; Prognosis ; Retrospective Studies

PURPOSE: The aim of this retrospective study is to analyze the relationship between local factors and survival rate of dental implant which had been installed and restored in Seoul Veterans Hospital dental center for past 10 years. And when the relationship is found out, it could be helpful to predict the prognosis of dental implants. MATERIALS AND METHODS: A retrospective study of patients receiving root-shaped screw-type dental implants placed from January 2000 to December 2009 was conducted. 6385 implants were placed in 3755 patients. The following data were collected from the dental records and radiographs: patient's age, gender, implant type and surface, length, diameter, location of implant placement, bone quality, prosthesis type. The correlations between these data and survival rate were analyzed. Statistical analysis was performed with the use of Kaplan-Meier analysis, Chi-square test and odds ratio. RESULTS: In all, 6385 implants were placed in 3755 patients (3120 male, 635 female; mean age 65 +/- 10.58 years). 108 implants failed and the cumulative survival rate was 96.33%. There were significant differences in age, implant type and surface, length, location and prosthesis type (P<.05). No significant differences were found in relation to the following factors: gender, diameter and bone quality (P>.05). CONCLUSION: Related factors such as age, implant type, length, location and prosthesis type had a significant effect on the implant survival.
Dental Implants ; Dental Records ; Hospitals, Veterans ; Humans ; Kaplan-Meier Estimate ; Male ; Prognosis ; Prostheses and Implants ; Retrospective Studies ; Survival Rate

PURPOSE: To assess the usefulness of two spectral domain optical coherence tomography (SD-OCT) instruments (Cirrus(R), Spectralis(R)) for evaluating optic nerve head and peripapillary structures. METHODS: Images of optic nerve complex were obtained from 136 eyes of 136 patients using enhanced depth imaging technique of 2 SD-OCT instruments. Optic nerve head and peripapillary structures were investigated for their visibility and morphological features in total eyes and glaucomatous eyes. Effect factors for laminar thickness measurement were evaluated and the reproducibility of the lamina cribrosa thickness measured by the 2 OCT instruments was analyzed. RESULTS: Lamina cribrosa thickness was better identified using Spectralis(R) OCT in total and glaucomatous eyes. Short posterior ciliary artery (in total eyes) and peripapillary choroid (in total and glaucomatous eyes) were also better identified using Spectralis(R) OCT (p < 0.001). A cup-disc ratio < or = 0.6 was the significant effect factor for laminar thickness measurement (p < 0.05). Interobserver reproducibility was excellent using both OCT instruments. Intraobserver reproducibility was excellent using Spectralis(R) OCT and moderate using Cirrus(R) OCT. CONCLUSIONS: Spectralis(R) OCT was better for visualizing optic nerve head and peripapillary structures and showed better reproducibility than Cirrus(R) OCT. Thus, the Spectralis(R) may be helpful for detecting and understanding features of the optic nerve complex.
Choroid ; Ciliary Arteries ; Glaucoma ; Humans ; Optic Disk ; Optic Nerve* ; Tomography, Optical Coherence*

PURPOSE: To compare the clinical outcomes between patients undergoing argon laser trabeculoplasty (ALT) and those undergoing selective laser trabeculoplasty (SLT). METHODS: Sixty-one eyes of 61 patients with primary open-angle glaucoma who were treated with more than 1 kind of antiglaucoma medication eye drop were enrolled in this study. Thirty-five eyes of 35 patients were treated with argon laser trabeculoplasty (ALT). Twenty-six eyes of 26 patients were treated with selective laser trabeculoplasty (SLT). The mean IOP at 1, 3, 6, and 12 months and the success rate of treatment at the 12-month follow-up period were evaluated in all patients. RESULTS: At 12 months postoperative, the ALT group had a mean IOP of 16.53+/-2.58 mmHg with a mean IOP reduction of 35.27%, while the SLT group had a mean IOP of 18.40+/-5.61 mmHg with a mean IOP reduction of 17.37%. The success rates of treatment defined as definition 1 were 62.85% in ALT and 62.50% in SLT, and the success rates defined as definition 2 were 51.42% in ALT and 46.15% in SLT. CONCLUSIONS: There were no significant differences in the IOP lowering effect or success rates between the ALT and SLT patients at 12 months postoperatively.
Argon ; Eye ; Follow-Up Studies ; Glaucoma, Open-Angle ; Humans ; Trabeculectomy

In cataract surgery, the surgically induced miosis complicate the removal of lens materials and implantation of a posterior chamber intraocular lens, which increase the risk of ocular trauma and its associated complication. The refore maintenance of mydriasis during cataract syrgery makes the operation easier and brings a good results. This study was performed in rabbit and human eyes to assess the role of the prostaglandins in surgically induced miosis by observing the reduction of pupillary constriction and by measuring the amount of prostaglandins in aqueous humor when the 1.0% suprofen, cyclo-oxygenase inhibitor, was used, and to assess the effect of suprofen in intraocular pressure. In the results, suprofen inhibits syrgically induced miosis (p value: <0.01, human <0.01) without intraocular pressure change, and for this miosis, prostaglans and for this miosis, prostaglandins are at least partially responsible.
Aqueous Humor ; Cataract ; Constriction ; Humans ; Intraocular Pressure ; Lenses, Intraocular ; Miosis* ; Mydriasis ; Prostaglandin-Endoperoxide Synthases ; Prostaglandins* ; Suprofen

PURPOSE: To compare the bleb morphology and surgical outcomes of a limbus-based group with those of a fornix-based group who underwent trabeculectomy with mitomycin C (MMC). METHODS: Sixty-five eyes of 59 patients who had undergone trabeculectomy with MMC and who were observed for one year or more were included in the present study. A limbus-based conjunctival flap was used for 34 eyes of 31 patients and a fornix-based conjunctival flap for the other 31 eyes of 28 patients. The bleb morphologies were classified and compared after one year or more postoperatively according to the Moorfield Bleb Grading System, and intraocular pressure and success rates were evaluated. RESULTS: The central bleb vascularity of the limbus-based group was statistically significantly lower than that of the fornix- based group (1.79 +/- 0.64; 2.16 +/- 0.73, p = 0.042). The risk of cystic bleb formation was higher in the limbus-based group (38.2%; 16.5%, p = 0.047). There were no differences in the IOP or success rate between the two groups. CONCLUSIONS: There were no differences between the two groups with regard to the IOP or cumulative success rate. However, in the fornix-based group, the central bleb vascularity was lower and the risk of avascular cystic bleb formation was higher than those in the limbus-based group.
Blister ; Eye ; Humans ; Intraocular Pressure ; Mitomycin ; Trabeculectomy

The ocular vascular resistance of the ciliary choroidal network has been investigated on measurements of pulse amplitude(PA). The ocular pulse is derived from the ciliary choroidal blood flow which account for more than 90% of the total ocular blood flow(OBF). In 5 normal Cynomolgus monkeys with topical application(50 micro l) of 2% epinephrine, the PA revealed a significant reduction(0.32 +/- 0.06mmHg, mean +/- SEM, p<0.01). In the other 5 normal Cynormlgus monkeys with 4% pilocarpine, the PA revealed no significant increment(0.32 +/- 0.15mmHg, mean +/- SEM, p<0.10) by the OBF system. These results suggest that topical application of epinephrine produces a significant reduction of OBR but pilocarpine produces a mild increment of OBF.
Choroid ; Epinephrine* ; Haplorhini ; Macaca fascicularis ; Pilocarpine* ; Vascular Resistance