1.Structure-function correlations of glaucoma in Filipinos
Kimberly Ann T. Cotaoco ; Patricia M. Khu ; John Mark S. de Leon ; Ralph Anthony H. de Jesus
Philippine Journal of Ophthalmology 2022;47(2):64-69
		                        		
		                        			Introduction:
		                        			To determine the structure-function correlations of glaucoma in Filipinos using the average
peripapillary retinal nerve fiber layer (RNFL) thickness and rim area (RA) of the spectral-domain optical
coherence tomography (SD-OCT) and mean defect (MD), pattern standard deviation (PSD), and visual field
(VF) clusters of standard automated perimetry (SAP)
		                        		
		                        			Methods:
		                        			Consecutive tests consisting of SD-OCT, SAP, and disc photos were reviewed and selected based
on abnormalities in VFs or OCTs or both. Each set of tests was classified as to VF defect type and severity.
Mean threshold of VF clusters, MD, and PSD were correlated with average and sectoral RNFL thicknesses and
RA. 
		                        		
		                        			Results:
		                        			One hundred eighty-six (168) eyes of 121 patients with mean age of 60.2 ± 14.7 years had an average
MD, PSD, RNFL thickness, RA of -9.5 ± 8.5 dB, 5.4 ± 3.3 dB, 75.9 ± 15.9 μm, and 0.9 ± 0.4 mm2, respectively.
Among VF tests, 23.1% were normal, 16.5% had early, 9.1% moderate, 12.4% advanced, and 8.3% severe
glaucoma damage. Most common VF defect types were central islands, combined, and paracentral (16.5%,
14.4%, and 12.2%, respectively). The most commonly affected RNFL segments were inferior, followed by
superior, and combined superior and inferior (51.2%, 47.1, and 34%, respectively). Among the OCT
parameters, RNFL thickness and RA were strongly correlated (p<0.0001). Between the VF and OCT
parameters, the strongest correlation was between the clusters of superior VF defects and the 6-8 o’clock RNFL
thinning, followed by the inferior VF defects and the 12-1 o’clock RNFL thinning. Inferior RNFL thinning
was strongly correlated with MD and PSD. 
		                        		
		                        			Conclusion
		                        			Among Filipino glaucomatous eyes monitored with SD-OCT and SAP, correlation was strongest
between the superior VF defects and the infero-temporal RNFL thinning. 
		                        		
		                        		
		                        		
		                        			Visual Fields
		                        			;
		                        		
		                        			 Tomography, Optical Coherence
		                        			;
		                        		
		                        			 Glaucoma 
		                        			
		                        		
		                        	
2.Hierarchical Cluster Analysis of Peripapillary Retinal Nerve Fiber Layer Damage and Macular Ganglion Cell Loss in Open Angle Glaucoma
Kwanghyun LEE ; Hyoung Won BAE ; Sang Yeop LEE ; Gong Je SEONG ; Chan Yun KIM
Korean Journal of Ophthalmology 2020;34(1):56-66
		                        		
		                        			
		                        			optical coherence tomography guided progression analysis, with respect to the peripapillary retinal nerve fiber layer (RNFL) and macular ganglion cell-inner plexiform layer (GCIPL).METHODS: One hundred sixty-four eyes with primary open-angle glaucoma were studied. The structural progression pattern evaluated by optical coherence tomography guided progression analysis was classified using hierarchical cluster analysis. The clinical parameters, patterns of structural progression, and visual field (VF) changes were compared among the groups.RESULTS: Three groups were included: stable, progressive peripapillary RNFL thinning without macular GCIPL involvement, and progressive thinning of both the peripapillary RNFL and macular GCIPL. The third group, those with progressive peripapillary RNFL and macular GCIPL thinning, showed more progressive peripapillary RNFL thinning in the inferotemporal area and VF progression in the parafoveal area. Conversely, the 12 and 6 o'clock areas were the most common locations of progressive peripapillary RNFL thinning in the group without macular GCIPL involvement.CONCLUSIONS: Structural progression patterns of glaucoma can be categorized into three groups. The location of progressive peripapillary RNFL thinning is associated with progressive macular GCIPL thinning and pattern of VF changes in the affected area. Our results indicate that the use of only macular GCIPL analysis is inadequate for analyzing the structural progression of glaucoma.]]>
		                        		
		                        		
		                        		
		                        			Cluster Analysis
		                        			;
		                        		
		                        			Ganglion Cysts
		                        			;
		                        		
		                        			Glaucoma
		                        			;
		                        		
		                        			Glaucoma, Open-Angle
		                        			;
		                        		
		                        			Machine Learning
		                        			;
		                        		
		                        			Nerve Fibers
		                        			;
		                        		
		                        			Retinaldehyde
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
3.Clinical Manifestations and Visual Prognosis of Cilioretinal Artery Sparing Central Retinal Artery Occlusion
Yong Hoon KIM ; Kyu Hyung PARK ; Se Joon WOO
Korean Journal of Ophthalmology 2020;34(1):27-34
		                        		
		                        			
		                        			visual outcome, papillomacular bundle involvement, and remnant visual field were analyzed according to cilioretinal artery sparing.RESULTS: Among eyes with complete CRAO, the proportion of cilioretinal artery sparing CRAO was 17.8% (16 / 90). Mean initial best-corrected visual acuities (BCVAs) (2.04 ± 0.69 vs. 2.34 ± 0.47, p = 0.039) and final BCVAs (1.65 ± 0.87 vs. 2.22 ± 0.84, p = 0.001) were significantly better in eyes of the cilioretinal artery sparing group than the non-sparing group. The proportion with poor visual outcome (final BCVA <20 / 200) was 81.3% in the cilioretinal artery sparing group and 97.3% in the non-sparing group (p = 0.01). In sub-group analysis within cilioretinal artery sparing CRAO eyes, ischemic involvement of the papillomacular bundle at disease onset was significantly more frequent in the poor vision group (BCVA <20 / 200, 12 / 13 [92.3%]) than in the good vision group (BCVA ≥20 / 200, 1 / 3 [33.3%], p = 0.016) and it was associated with preserved central visual field.CONCLUSIONS: Although cilioretinal artery sparing is common in CRAO and has a better prognosis than complete CRAO, the visual outcome is generally poor and only a small proportion of eyes has preserved small central visual field. Ischemic injury of the papillomacular bundle at the acute stage of CRAO correlates with poor visual outcome and could be a prognostic sign.]]>
		                        		
		                        		
		                        		
		                        			Arteries
		                        			;
		                        		
		                        			Ciliary Arteries
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Retinal Artery Occlusion
		                        			;
		                        		
		                        			Retinal Artery
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Visual Acuity
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
4.Retinal Ganglion Cell Layer Thicknesses and Visual Functions in Patients with Bilateral Temporal Optic Atrophy
Bum Gi KIM ; Jae Yong PARK ; Won Hyuk OH ; Jin CHOI
Journal of the Korean Ophthalmological Society 2020;61(1):92-100
		                        		
		                        			
		                        			PURPOSE: To investigate correlations between macular retinal ganglion cell (RGC) layer thickness and best-corrected visual acuity (BCVA) and visual field parameters in patients with bilateral temporal optic atrophy.METHODS: Thirty eyes of 15 patients with bilateral temporal optic atrophy and 30 eyes of 15 normal subjects that were age- and sex-matched were included in the study. We measured the thicknesses of the RGC layers of posterior poles using optical coherence tomography volume scanning. The RGC layer was divided into nine zones based on the Early Treatment of Diabetic Retinopathy Study baseline. Possible correlations of the RGC layer with the BCVA and visual field parameters were determined.RESULTS: The RGC layer thickness was significantly thinner in all patients compared to those in the control group (p = 0.001). The RGC layer thicknesses in the inner superior, inner temporal, inner inferior, and inner nasal areas were significantly correlated with the BCVA (r = −0.650, r = −0.626, r = −0.616, and r = −0.636, respectively; p = 0.000). The RGC layer thicknesses in the outer superior, outer temporal, outer inferior, and outer nasal areas were significantly correlated with the mean deviation of the visual field test (r = 0.470, r = 0.349, r = 0.496, and r = 0.469, respectively; p < 0.05).CONCLUSIONS: In patients with bilateral temporal optic atrophy, the RGC layer thickness in the medial region was correlated with the BCVA, and the RGC layer thickness in the lateral region was correlated with the mean deviation of the visual field test.
		                        		
		                        		
		                        		
		                        			Diabetic Retinopathy
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Optic Atrophy
		                        			;
		                        		
		                        			Retinal Ganglion Cells
		                        			;
		                        		
		                        			Retinaldehyde
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Vision Disorders
		                        			;
		                        		
		                        			Visual Acuity
		                        			;
		                        		
		                        			Visual Field Tests
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
5.Non-glaucomatous Retinal Nerve Fiber Layer Defect Associated with Paravascular Inner Retinal Defect
Gye Jung KIM ; Dong Hwan SON ; Jin Soo KIM ; Min Chul SHIN
Journal of the Korean Ophthalmological Society 2020;61(2):214-220
		                        		
		                        			
		                        			PURPOSE: To report a case of non-glaucomatous retinal nerve fiber layer (RNFL) defect associated with paravascular inner retinal defect (PIRD) in a patient with idiopathic epiretinal membrane (ERM).CASE SUMMARY: A 70-year-old male who was diagnosed with ERM in his right eye and pseudoexfoliative glaucoma in his left eye visited our clinic. His intraocular pressure was 14 mmHg in both eyes while using topical hypotensive medications in both eyes. His right eye showed no glaucomatous change of the optic disc head, and also no glaucomatous visual field defect on standard automated perimetry. Red-free fundus photography and swept-source optical coherence tomography showed an ERM and wedge-shaped RNFL defect starting from the PIRD, not the optic disc head. He was diagnosed with non-glaucomatous RNFL defect in the right eye and was told to stop using topical hypotensive medication for the right eye. After 2 years of discontinuing the medication, the IOP was within the normal range, the RNFL defect showed no progression, and the visual field remained stationary.CONCLUSIONS: A non-glaucomatous RNFL defect can develop in association with PIRD in patients with idiopathic ERM. Examinations for PIRD as well as evaluation of the optic disc head are therefore necessary in patients with ERM and RNFL defect.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Epiretinal Membrane
		                        			;
		                        		
		                        			Glaucoma
		                        			;
		                        		
		                        			Head
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Intraocular Pressure
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Nerve Fibers
		                        			;
		                        		
		                        			Photography
		                        			;
		                        		
		                        			Reference Values
		                        			;
		                        		
		                        			Retinaldehyde
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Visual Field Tests
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
6.Progressive Optic Disc Tilt in Young Myopic Glaucomatous Eyes
Joo Young YOON ; Kyung Rim SUNG ; Sung Cheol YUN ; Joong Won SHIN
Korean Journal of Ophthalmology 2019;33(6):520-527
		                        		
		                        			
		                        			PURPOSE: To explore the progressive change and associated factors of optic disc tilt in young myopic glaucomatous eyes by analyzing long-term follow-up data.METHODS: Optic disc images were obtained from spectral-domain optical coherence tomography enhanced depth imaging from at least five different visits. At each visit, the disc tilt angle (DTA), defined as the angle between the Bruch's membrane opening plane and the optic canal plane, was estimated at the central frame that passes through the optic disc. Glaucoma progression was assessed on the basis of changes noted on serial optic disc and retinal nerve fiber layer photographs or changes in the visual field (VF). A linear mixed effect model was used to assess the influence of parameters (age, sex, baseline and follow-up intraocular pressure, retinal nerve fiber layer thickness, VF mean deviation, axial length, central corneal thickness), and presence of glaucomatous progression upon DTA change.RESULTS: A total of 26 eyes of 26 young myopic primary open-angle glaucoma patients (axial length >24.0 mm; mean age, 25.1 ± 4.0 years; mean follow-up, 3.3 ± 0.9 years) were included. DTA was 7.0 ± 3.4 degrees at baseline and 8.3 ± 3.8 degrees at last visit, which represents a significant difference (p < 0.001). Worse VF mean deviation (p < 0.001) and longer axial length (p = 0.006) were significantly associated with DTA increase.CONCLUSIONS: Young myopic glaucomatous eyes showed progressive optic disc tilting. Progressive optic disc tilting in young myopic glaucomatous eyes may be related to either continuous axial myopic shift or glaucomatous structural change.
		                        		
		                        		
		                        		
		                        			Bruch Membrane
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Glaucoma
		                        			;
		                        		
		                        			Glaucoma, Open-Angle
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Intraocular Pressure
		                        			;
		                        		
		                        			Myopia
		                        			;
		                        		
		                        			Nerve Fibers
		                        			;
		                        		
		                        			Optic Disk
		                        			;
		                        		
		                        			Retinaldehyde
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
7.Bilateral Occipital Lobe Infarction Presenting as Bilateral Inferior Altitudinal Defects
Seong Wook HAN ; Seung Ah CHUNG
Journal of the Korean Ophthalmological Society 2019;60(3):298-302
		                        		
		                        			
		                        			PURPOSE: Horizontal visual field defects are generally caused by lesions before the optic chiasm, but we report a case with bilateral inferior altitudinal defects secondary to bilateral occipital lobe infarction. CASE SUMMARY: A 57-year-old male with a history of diabetes and hypertension presented with a month of blurring in the inferior visual field. His corrected visual acuity was 1.0 in the right eye and 0.63 in the left eye, and the intraocular pressure was normal in each eye. Pupillary response, ocular movement, and color vision tests were normal in both eyes. There was no specific finding of the optic disc and macula on fundus examination. Visual field examination revealed an inferior congruous homonymous hemianopia with horizontal meridian sparing and a left incongruous homonymous quadrantanopia. Optical coherence tomography for peripapillary retinal nerve fiber layer thickness revealed a mild decrease in the inferior disc of both eyes. Brain magnetic resonance imaging confirmed the presence of an acute infarction confined with upper medial calcarine fissures of bilateral occipital lobe and the right splenium of the corpus callosum, which were consistent with inferior altitudinal hemianopia and left superior incongruous quadrantanopia, respectively. Brain magnetic resonance angiography showed multiple stenosis of bilateral posterior cerebral arteries. CONCLUSIONS: The altitudinal visual field defects could be caused by the occipital lesion medial to the calcarine fissure, and unusual visual defects could be due to a combination of multiple lesions.
		                        		
		                        		
		                        		
		                        			Brain
		                        			;
		                        		
		                        			Color Vision
		                        			;
		                        		
		                        			Constriction, Pathologic
		                        			;
		                        		
		                        			Corpus Callosum
		                        			;
		                        		
		                        			Hemianopsia
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hypertension
		                        			;
		                        		
		                        			Infarction
		                        			;
		                        		
		                        			Infarction, Posterior Cerebral Artery
		                        			;
		                        		
		                        			Intraocular Pressure
		                        			;
		                        		
		                        			Magnetic Resonance Angiography
		                        			;
		                        		
		                        			Magnetic Resonance Imaging
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Nerve Fibers
		                        			;
		                        		
		                        			Occipital Lobe
		                        			;
		                        		
		                        			Optic Chiasm
		                        			;
		                        		
		                        			Posterior Cerebral Artery
		                        			;
		                        		
		                        			Retinaldehyde
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Visual Acuity
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
8.Comparison of Retinal Ganglion Cell Damage in Glaucoma and Retinal Vein Occlusion by Visual Field
Jiyoung LEE ; Sooji JEON ; Hae Young Lopilly PARK
Journal of the Korean Ophthalmological Society 2019;60(5):455-462
		                        		
		                        			
		                        			PURPOSE: We analyzed and compared retinal ganglion cell damage between patients with glaucoma and those with branched retinal vein occlusion (BRVO). We performed two types of visual field examinations. METHODS: We retrospectively reviewed the medical records of 40 glaucoma eyes and 40 BRVO eyes. We compared the median deviation (MD), the pattern standard deviation (PSD), and sensitivity of damaged visual hemifield from frequency-doubling technology (FDT) C24-2 and standard automated perimetry (SAP) C24-2 visual field tests evaluation. We sought correlations between the MDs and retinal nerve fiber layer thickness as revealed by optical coherence tomography. RESULTS: MDs did not differ between the groups. PSD value was higher in glaucoma patients with FDT C24-2 test (p = 0.022), but no difference between two groups with SAP C24-2 test (p = 0.144). In terms of the sensitivity of the damaged visual hemifield, glaucoma patients had larger areas of damage in the FDT C24-2 test (p < 0.01). In regression analyses, the log R2 values of both tests were higher in glaucoma patients. CONCLUSIONS: Glaucoma patients had a greater damaged visual field area in the FDT C24-2 test than the SAP C24-2 test. The BRVO patients exhibited similar extents of damage in both tests. Thus, the subtypes and distributions of damaged retinal ganglion cells may differ between the conditions, facilitating differential diagnosis.
		                        		
		                        		
		                        		
		                        			Diagnosis, Differential
		                        			;
		                        		
		                        			Glaucoma
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Medical Records
		                        			;
		                        		
		                        			Nerve Fibers
		                        			;
		                        		
		                        			Retinal Ganglion Cells
		                        			;
		                        		
		                        			Retinal Vein Occlusion
		                        			;
		                        		
		                        			Retinal Vein
		                        			;
		                        		
		                        			Retinaldehyde
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Visual Field Tests
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
9.Fundus Albipunctatus Diagnosed in a 9-year-old Female
Ki Yup NAM ; Bum Jun KIM ; Ji Hye KIM ; Tae Seen KANG ; Hyun Kyung CHO ; In Young CHUNG ; Jong Moon PARK ; Yong Seop HAN
Journal of the Korean Ophthalmological Society 2019;60(10):999-1005
		                        		
		                        			
		                        			PURPOSE: We report a case of fundus albipunctatus discovered in a young patient. CASE SUMMARY: A 7.6-year-old female showed numerous small whitish-yellow flecks in the perimacular area and retinal periphery. Dark adapted 0.01 electroretinography (ERG) and dark adapted 3.0 ERG were profoundly reduced. At 26 months after the first visit, the best-corrected visual acuities were 1.0 right eye and 0.9 left eye. There were no pigmented lesions, atrophic lesions, or vascular abnormalities in the retina. Humphrey and Goldmann visual field tests were performed, but neither of the tests revealed any scotomas or other visual field defect. The number and size of characteristic numerous small whitish-yellow retinal flecks seemed almost unchanged. In spectral domain-optical coherence tomography (SD-OCT), the subretinal hyper-reflective lesions spanned the retinal pigment epithelium and the external limiting membrane. ERG showed improved dark adapted responses (dark adapted 0.01 ERG and dark adapted 3.0 ERG) after prolonged dark adaptation (2.5 hours). No family member showed any abnormal findings. CONCLUSIONS: Fundus albipunctatus is a rare disease in Koreans. We report a case diagnosed using fundus photography, SD-OCT, visual field tests, and ERG after prolonged dark adaptation (2.5 hours).
		                        		
		                        		
		                        		
		                        			Child
		                        			;
		                        		
		                        			Dark Adaptation
		                        			;
		                        		
		                        			Electroretinography
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Membranes
		                        			;
		                        		
		                        			Photography
		                        			;
		                        		
		                        			Rare Diseases
		                        			;
		                        		
		                        			Retina
		                        			;
		                        		
		                        			Retinal Pigment Epithelium
		                        			;
		                        		
		                        			Retinaldehyde
		                        			;
		                        		
		                        			Scotoma
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Visual Acuity
		                        			;
		                        		
		                        			Visual Field Tests
		                        			;
		                        		
		                        			Visual Fields
		                        			
		                        		
		                        	
10.Papilledema with Cerebral Venous Sinus Thrombosis
Journal of the Korean Ophthalmological Society 2019;60(6):606-611
		                        		
		                        			
		                        			PURPOSE: We report two patients diagnosed with a sinus thrombosis with papillary edema. CASE SUMMARY: Case 1 was a 27-year-old male who presented with complaints of headache and vomiting for 2 months and blurred vision in both eyes. The best-corrected visual acuity (BCVA) was 1.0 in the right eye and 1.0 in the left eye. A visual field (VF) examination revealed a binocular peripheral VF defect and optical coherence tomography (OCT) and a fundus examination indicated optic disc swelling in both eyes. Brain magnetic resonance imaging (MRI) showed no specific finding but magnetic resonance venography revealed filling defect signs in the transverse sinus and a cerebrospinal fluid examination indicated elevated intracranial pressure (ICP). Case 2 was a 54-year-old female who came to our hospital with suspicion of bilateral optic disc swelling. The BCVA was 0.9 in the right eye and 1.0 in the left eye. A VF examination revealed an inferior-temporal VF defect and blind spot enlargement in the right eye. OCT and a fundus examination showed optic disc swelling in both eyes. Brain MRI showed no specific finding but magnetic resonance venography revealed a decrease in blood flow in the transverse sinus, sigmoid sinus. A cerebrospinal fluid examination indicated elevated ICP. CONCLUSIONS: In the case of optic disc swelling in both eyes, a secondary cause of ICP elevation and the possibility of optic disc swelling due to sinus thrombosis should be considered, and brain MRI and venography are needed to distinguish these possibilities.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Brain
		                        			;
		                        		
		                        			Cerebrospinal Fluid
		                        			;
		                        		
		                        			Colon, Sigmoid
		                        			;
		                        		
		                        			Edema
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Headache
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Intracranial Hypertension
		                        			;
		                        		
		                        			Magnetic Resonance Imaging
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Optic Disk
		                        			;
		                        		
		                        			Optic Nerve Diseases
		                        			;
		                        		
		                        			Papilledema
		                        			;
		                        		
		                        			Phlebography
		                        			;
		                        		
		                        			Sinus Thrombosis, Intracranial
		                        			;
		                        		
		                        			Telescopes
		                        			;
		                        		
		                        			Tomography, Optical Coherence
		                        			;
		                        		
		                        			Visual Acuity
		                        			;
		                        		
		                        			Visual Fields
		                        			;
		                        		
		                        			Vomiting
		                        			
		                        		
		                        	
            

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