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대한안과학회> Korean Journal of Ophthalmology

Korean Journal of Ophthalmology update

  • : 대한안과학회
  • : 의약학분야  >  안과학
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수록정보
수록범위 : 19권1호(2005)~29권3호(2015) |수록논문 수 : 753
Korean Journal of Ophthalmology
29권3호(2015년 06월) 수록논문
최근 권호 논문
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KCI등재 SCOPUS

1Original Article : Combined Cataract Extraction and Vitrectomy for Macula-sparing Retinal Detachment: Visual Outcomes and Complications

저자 : Kyoung Nam Kim , Haeng Jin Lee , Dong Won Heo , Young Joon Jo , Jung Yeul Kim

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 147-154 (8 pages)

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Purpose: To evaluate the visual outcome of combined phacoemulsification, intraocular lens implantation, and vitrectomy for macula-sparing rhegmatogenous retinal detachment. Methods: The results of combined vitrectomy with cataract extraction were retrospectively analyzed in patients with preexisting cataracts and new-onset rhegmatogenous retinal detachment. To qualify, patients must also have had macular sparing in a region 6,000 ㎛ in diameter on optical coherence tomography. The anatomical success rate, visual outcomes, and postoperative complications relating to visual acuity were evaluated. Results: In 56 patients followed postoperatively for more than 12 months, the initial and final surgical success rate was 96.4% and 100%, respectively. The mean preoperative logarithm of the minimum angle of resolution visual acuity was 0.05 and decreased to 0.11 postoperatively (p < 0.001). Of the 56 patients, 20 (35.7%) had worse visual acuity postoperatively, compared with preoperatively (0.06 vs. 0.27, p < 0.001); these cases were comprised of six patients with epiretinal membranes, 12 patients with a posterior capsule opacity, and two patients with cystoid macular edema. In the remaining 36 patients, there were no significant differences in visual acuity preoperatively and postoperatively (0.04 vs. 0.03, p = 0.324). Conclusions: In patients with cataracts who develop macula-sparing rhegmatogenous retinal detachment and whose visual prognosis is excellent assuming the retina can be reattached successfully, combined phacoemulsification, intraocular lens implantation, and vitrectomy might be an effective treatment. However, the visual prognosis is significantly affected by postoperative complications such as an epiretinal membranes, posterior capsule opacity, and cystoid macular edema. Therefore, further studies should examine methods to prevent these postoperative complications.

KCI등재 SCOPUS

2Original Article : Demographic Features of Idiopathic Macular Telangiectasia in Korean Patients

저자 : Sung Hyun Kim , Jaeryung Oh , Soh Eun Ahn , Choul Yong Park , Jong Hyun Oh

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 155-159 (5 pages)

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Purpose: To investigate the clinical and demographic features of idiopathic macular telangiectasia (MacTel) in Korean patients since the introduction of spectral domain optical coherence tomography (SD-OCT). Methods: We reviewed medical records of patients who were diagnosed with MacTel from 2009 to 2013. All patients underwent fluorescein angiography and SD-OCT and were classified as type 1 or type 2 according to the classification system proposed by Yannuzzi. Results: Over a period of 5 years, 4 (18.2%) patients were diagnosed with type 1 MacTel and 18 (81.8%) patients were diagnosed with type 2 MacTel. All patients with type1 MacTel were male, and their mean age was 51 ± 8.6 years. Among patients with type 2 MacTel, 3 (16.7%) were male, 15 (83.3%) were female, and the mean age was 60 ± 13.6 years. Whereas all type 1 MacTel patients had either metamorphopsia or mild scotoma, of the 18 patients with type 2 MacTel, only 4 (22.2%) had those symptoms, 10 (55.6%) complained of only mild visual impairment, and the other 4 (22.2%) had no symptoms. Intraretinal cystoid spaces were observed in 26 (72.2%) of 36 eyes with type 2 MacTel by SD-OCT. These cystoid spaces had irregular boundaries and did not correspond to angiographic leakages. Conclusions: Type 2 MacTel was most common in the present study. The wider availability of SD-OCT may have contributed to the diagnosis of type 2 MacTel. Type 2 MacTel may be more prevalent than type 1 in Koreans, which corresponds to the results of Western countries.

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3Original Article : The Association between Choroidal Thickness Variations and Response to Intravitreal Bevacizumab in Central Serous Chorioretinopathy

저자 : Dong Yoon Kim , Soo Geun Joe , Sung Jae Yang , Joo Yong Lee , June Gone Kim , Young Hee Yoon

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 160-167 (8 pages)

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Purpose: To analyze differences in the subfoveal choroidal thickness (SFChT) between bevacizumab responders (BevRs) and nonresponders (BevNRs) in patients with idiopathic central serous chorioretinopathy (CSC). Methods: The medical records of 30 unilateral chronic CSC patients who were treated with intravitreal bevacizumab (IVB) as a first line treatment were reviewed. Patients were categorized as BevNRs when CSC did not completely resolve after a minimum of 3 IVB treatments. Enhanced depth imaging-optical coherence tomography was used and SFChT was measured before and after treatment. Choroidal hyperpermeability was also evaluated using indocyanine angiography. Results: Twenty and 10 eyes were classified as BevRs or BevNRs, respectively. The mean number of IVB treatments was 2.22 ± 0.89 in BevRs, and 4.80 ± 1.03 in BevNRs. Compared with BevNRs, BevRs demonstrated significantly greater pretreatment SFChT (441.25 ± 88.09 vs. 364.10 ± 61.97 ㎛); SFChT reduction following IVB was significantly greater in BevRs than BevNRs. SFChT in the unaffected eyes was also greater in BevRs than BevNRs. Choroidal hyperpermeability was detected less frequently in BevNRs (hypofluorescence on late-phase, 0.0% and 33.3% in BevNRs and BevRs, respectively; p = 0.049). Conclusions: Compared with CSC eyes that did not respond well to IVB, BevRs demonstrated significantly thicker SFChT at baseline, greater reduction in SFChT after IVB treatment, and hyperfluorescence on latephase indocyanine green angiography. We recommend IVB injection as the first-line therapy for CSC eyes with relatively high SFChT and hyperfluorescence on late-phase indocyanine green angiography.

KCI등재 SCOPUS

4Original Article : Simplified Correction of Ischemic Index in Diabetic Retinopathy Evaluated by Ultra-widefield Fluorescein Angiography

저자 : Jeong Hee Kim , Hyeong Gi Jung , Hye Jin Chung , Kyungmin Lee , Joonhong Sohn

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 168-172 (5 pages)

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Purpose: To develop a novel, simplified method for correcting the ischemic index of nonperfused areas in diabetic retinopathy (DR). Methods: We performed a retrospective review of 103 eyes with naive DR that underwent ultra-widefield angiography (UWFA) over a year. UWFAs were graded according to the quantity of retinal non-perfusion, and uncorrected ischemic index (UII) and corrected ischemic index (CII) were calculated using a simplified, novel method. Results: The average differences between UII and CII in the non-proliferative DR group and the proliferative DR group were 0.7 ± 0.9% in the <25% CII group, 3.0 ± 0.9% in the 25% to 49.9% CII group, and 3.6 ± 0.6% in the >50% CII group, respectively. A CII >25% was critical for determining DR progression (p < 0.001). Conclusions: Distortion created by UWFA needs to be corrected because the difference between UII and CII in DR increases with the ischemic index.

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5Original Article : Relationship between Control Grade, Stereoacuity and Surgical Success in Basic Intermittent Exotropia

저자 : Kyung Tae Kang , Se Youp Lee

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 173-177 (5 pages)

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Purpose: This study was conducted to identify the relationship between control grade, stereoacuity and surgical success in basic intermittent exotropia. Methods: This retrospective study involved 44 basic intermittent exotropia patients who underwent strabismus surgery and completed at least 6 months of follow-up. The 44 patients were divided into three subgroups according to their control grade: group 1 (good control group, n = 12), group 2 (fair control group, n = 18), and group 3 (poor control group, n = 14). Evaluation was done to identify the relationships between near and distance stereoacuity and control grade, and between surgical success and control grade. Surgical success was defined as ocular alignment between 5 prism diopters esodeviation and 10 prism diopters exodeviation in the primary position at the final visit. Results: Mean near stereoacuity measured by the graded circle test was 57.50 seconds of arc (seconds) in group 1, 77.77 seconds in group 2, and 131.43 seconds in group 3 (p < 0.01). Mean distance steroacuity measured by Mentor B-VAT II BVS contour circle was 108.33 seconds in group 1, 148.33 seconds in group 2, and 262.82 seconds in group 3 (p < 0.01). Ten patients (83.33%) in group 1, 12 (66.67%) in group 2, and 9 (64.29%) in group 3 obtained surgical success (p = 0.28). Conclusions: In basic intermittent exotropia, better control grade was significantly accompanied by better stereoacuity. Better control grade was accompanied by higher surgical success rate but with no statistical significance.

KCI등재 SCOPUS

6Original Article : Comparison of the Refractive Measurements with Hand-held Autorefractometer, Table-mounted Autorefractometer and Cycloplegic Retinoscopy in Children

저자 : Handan Akil , Soner Keskin , Cemal Cavdarli

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 178-184 (7 pages)

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Purpose: To evaluate the performance of the hand-held and table-top autorefractokeratometer in measuring refractive errors by comparing them with cycloplegic retinoscopy. Methods: Included in the study were 112 eyes of 112 pediatric patients whose mean age was 6.78 ± 2.61 years (range, 2 to 12 years). The refractive errors of all the eyes were measured with and without cycloplegia using a hand held autorefractokeratometer (Retinomax K-plus 3), table top autorefractokeratometer (Canon RK-F1) and performing cycloplegic retinoscopy. The spherical equivalent, cylindrical axis and keratometer values were statistically compared. Results: The mean spherical equivalent obtained from the Retinomax K-plus 3 was significantly less hyperopic than that of Canon RK-F1 (p = 0.004) before cycloplegia. When the Bland Altman analysis was performed in comparisons of spherical equivalent values measured with the Retinomax K-plus 3, Canon RK-F1 and cycloplegic retinoscopy, it was seen that almost all of the differences between the measurements remained within the range of ±2 standard deviation. Good agreement was found between Retinomax K-plus 3 and Canon RKF1 for the Jackson cross-cylinder values at axis 0° and 45°; keratometer values respectively. Conclusions: The refractive error components were highly correlated between the two instruments and cycloplegic retinoscopy.

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7Original Article : The Parameters of Pattern Visual Evoked Potential in the Severe Visual Loss Patients in Korean

저자 : Min Kyung Kim , Ungsoo Samuel Kim

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 185-189 (5 pages)

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Purpose: To compare the characteristics of the pattern visual evoked potential (PVEP) in patients with severe visual loss and normal controls, and to demonstrate the range of PVEP parameters in normal Koreans. Methods: The patients were divided into three groups according to visual acuity: group 1, ranging from no light perception to less than 0.02; group 2, ranging from 0.02 to 0.1; and group 3, ranging from 0.125 to 0.25. Group 4 was established as a healthy control group. The 95% confidence intervals (CIs) of the PVEP parameters were calculated for group 4. The PVEP parameters were compared among these four groups, and the amplitudes were evaluated with respect to the 95% CIs. We used the area under the curve to integrate the sensitivity and the specificity of the PVEP parameter quantitative values (7.01 to 9.57 μV and 6.75 to 10.11 μV). Results: A total of 101 eyes were investigated. The 95% CIs of the P100 and N135 amplitudes of group 4 were 7.01 to 9.57 μV and 6.75 to 10.11 μV, respectively. The amplitudes of P100 and N135 were significantly higher in group 4 (p < 0.001). The P100 and N135 amplitude were below the 95% CI in all group 1 patients. The area under the curve of the P100 amplitude was the highest (0.789). Conclusions: No legally blind patient in the present study exhibited a value within the 95% CI of the controls. The P100 amplitude may be the best parameter for defining blindness in patients.

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8Original Article : Assessment of Patient Pain Experience during Intravitreal 27-Gauge Bevacizumab and 30-Gauge Ranibizumab Injection

저자 : Mete Guler , Burak Bilgin , Musa Capkın , Ali Simsek , Semsettin Bilak

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 190-194 (5 pages)

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Purpose: To compare pain scores of patients during intravitreal 27-gauge bevacizumab and 30-gauge ranibizumab injection procedures. Methods: Seventy eyes of 70 patients who had not previously undergone intravitreal anti-vascular endothelial growth factor therapy were included in this study. Thirty-five patients received ranibizumab and 35 patients received bevacizumab. The diagnoses of the patients were: 27 age related macular degeneration, 15 diabetic macular edema, 9 diabetic vitreous hemorrhage, 6 central retinal vein occlusion, 11 branch retinal vein occlusion and 2 central serous chorioretinopathy. Bevacizumab (1.25 mg/0.05 mL) was injected into the vitreous cavity using a 27-gauge needle, and ranibizumab (0.5 mg/0.05 mL) was injected with 30-gauge needle. Patients were asked just after the injection to rate their perceived pain during the injection using the visual analogue scale (VAS) of 0 (no pain) to 10 (unbearable/ worst pain). The average of these scores was used as the primary outcome. Results: The VAS pain scores in the ranibizumab and bevacizumab groups were 1.06 ± 0.91 (range, 0 to 3) and 1.94 ± 1.55 (range, 0 to 7), respectively, a significant difference (p = 0.005). Patients <65 and ≥65 years of age in both the ranibizumab and bevacizumab groups were then compared. For patients <65, there was a significant difference in the average VAS pain scores between groups (p = 0.003). However, for patients ≥65 years, there was not a significant difference in the average VAS pain scores between groups (p = 0.238). Female and male patients in both ranibizumab and bevacizumab groups were also compared. For female patients, there was a significant difference in the average VAS pain scores between groups (p = 0.016), although not for male patients (p = 0.078). Conclusions: Thirty-gauge intravitreal injection is more comfortable than 27-gauge injection. Injection of bevacizumabwith 30-gauge needle syringes may be more tolerable for patients.

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9Original Article : Estimation of Intraocular Lens Power Calculation after Myopic Corneal Refractive Surgery: Using Corneal Height in Anterior Segment Optical Coherence Tomography

저자 : Dong Hyun Kim , Mee Kum Kim , Won Ryang Wee

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 195-202 (8 pages)

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Purpose: To investigate the feasibility of estimating effective lens position (ELP) and calculating intraocular lens power using corneal height (CH), as measured using anterior segment optical coherence tomography (ASOCT), in patients who have undergone corneal refractive surgery. Methods: This study included 23 patients (30 eyes) who have undergone myopic corneal refractive surgery and subsequent successful cataract surgery. The CH was measured with AS-OCT, and the measured ELP (ELPm) was calculated. Intraocular lens power, which could achieve actual emmetropia (Preal), was determined with medical records. Estimated ELP (ELPest) was back-calculated using Preal, axial length, and keratometric value through the SRK/T formula. After searching the best-fit regression formula between ELPm and ELPest, converted ELP and intraocular lens power (ELPconv, Pconv) were obtained and then compared to ELPest and Preal, respectively. The proportion of eyes within a defined error was investigated. Results: Mean CH, ELPest, and ELPm were 3.71 ± 0.23, 7.74 ± 1.09, 5.78 ± 0.26 mm, respectively. The ELPm and ELPest were linearly correlated (ELPest = 1.841 × ELPm - 2.018, p = 0.023, R = 0.410) and ELPconv and Pconv agreed well with ELPest and Preal, respectively. Eyes within ±0.5, ±1.0, ±1.5, and ±2.0 diopters of the calculated Pconv, were 23.3%, 66.6%, 83.3%, and 100.0%, respectively. Conclusions: Intraocular lens power calculation using CH measured with AS-OCT shows comparable accuracy to several conventional methods in eyes following corneal refractive surgery.

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10Correspondence : Pathophysiology of Transient Cor-neal Edema and Pseudophakic Cystoid Macular Edema

저자 : Sang Beom Han , Moosang Kim , Seung Jun Lee

발행기관 : 대한안과학회 간행물 : Korean Journal of Ophthalmology 29권 3호 발행 연도 : 2015 페이지 : pp. 203-205 (3 pages)

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