1.A Case of Chorioretinal Coloboma in a Patient with Achondroplasia.
Woong Sun YOO ; Yeon Jung PARK ; Ji Myung YOO
Korean Journal of Ophthalmology 2010;24(5):302-305
Achondroplasia is a congenital disorder resulting from a specific disturbance in endochondral bone formation. The ophthalmic features reportedly associated with achondroplasia are telecanthus, exotropia, inferior oblique overaction, angle anomalies and cone-rod dystrophy. This is first report of chorioretinal coloboma in achondroplasia. An 8-year-old female was diagnosed with a developmental delay, known as achondroplasia, seven months after birth. Upon her initial visit, visual acuity was 0.3 in both eyes. The patient had telecanthus but normal ocular motility. Findings were normal upon anterior segment examination. Fundus examination of both eyes revealed about 1,500 microm sized chorioretinal coloboma inferior to the optic nerve head. Upon fluorescent angiography, there was chorioretinal coloboma without any other lesions. Afterward, there was no change in the fundus lesion, and best corrected visual acuity was 0.6 in both eyes. Chorioretinal coloboma is associated with choroidal and retinal detachment. As chorioretinal coloboma and achondroplasia are developmental disorders in the embryonic stage, early detection and regular ophthalmologic examination would be essential in patients with achondroplasia.
Achondroplasia/*complications/diagnosis
;
Child
;
Choroid/*abnormalities
;
Choroid Diseases/*complications/diagnosis
;
Coloboma/*complications/diagnosis
;
Female
;
Humans
;
Ophthalmoscopes
;
Tomography, Optical Coherence
;
Visual Acuity
2.Pattern VEP in Adult Amblyopic Patients Requested From Military Service.
Woong Sun YOO ; Yeon Jung PARK ; Ji Myong YOO
Journal of the Korean Ophthalmological Society 2010;51(10):1392-1397
PURPOSE: To evaluate the pattern VEP in adult amblyopic patients seen in consultation for ophthalmic evaluation as a past of physical examinations for conscription. METHODS: We retrospectively analyzed, 67 men, 20-year-old or older, who had pattern VEP done for the diagnosis of amblyopia from January 2004 to May 2009. P100 latency and P100 amplitude were analyzed. RESULTS: Thirteen patients were non-amblyopic, and 54 patients had amblyopia. Binocular amblyopia and monocular amblyopia were found in 23 and 31 patients, respectively. In the binocular amblyopic patients, four patients were hyperopic, seven patients were myopic, and 12 patients were astigmatic amblyopia. In the monocular amblyopic patients, 15 patients were anisometropic, 12 patients were strabismic, and four patients had organic amblyopia. The value of P100 latency and P100 amplitude were statistically significantly different between non-amblyopic and amblyopic eyes, with check size of 32x32. However, the types of amblyopia among the patients were not different at a statistically significant level. Visual acuity and P100 amplitude were significantly positively correlated. CONCLUSIONS: VEP might be a useful tool for diagnosis of adult amblyopia, especially using a 32x32 check size. This tool may impart the ability to decide relationship between amblyopia and visual acuity by analyzing P100 latency and amplitude values.
Adult
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Amblyopia
;
Eye
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Humans
;
Male
;
Military Personnel
;
Physical Examination
;
Retrospective Studies
;
Telescopes
;
Visual Acuity
;
Young Adult
3.Clinical study on cold agglutinin disease.
Jee Sook HAHN ; Chong Hoon PARK ; Yoo Hong MIN ; Sun Ju LEE ; Yun Woong KO
Korean Journal of Hematology 1991;26(1):119-128
No abstract available.
Anemia, Hemolytic, Autoimmune*
4.The RDW response during iron therapy in iron deficiency anemia.
Si Chan KIM ; Yun Woong KO ; Sun Ju LEE ; Yoo Hong MIN ; Jee Sook HAHN
Korean Journal of Hematology 1992;27(1):15-21
No abstract available.
Anemia, Iron-Deficiency*
;
Iron*
5.A study on the blood viscosity in health and plasma cell dyscrasia.
Jee Sook HAHN ; Sun Ju LEE ; Yoo Hong MIN ; Yun Woong KO
Korean Journal of Hematology 1991;26(2):307-321
No abstract available.
Blood Viscosity*
;
Paraproteinemias*
;
Plasma Cells*
;
Plasma*
6.A clinical study on microangiopathic hemolytic anemia.
Jee Sook HAHN ; Don Haeng LEE ; Sun Ju LEE ; Yoo Hong MIN ; Yun Woong KO
Korean Journal of Hematology 1991;26(2):263-279
No abstract available.
Anemia, Hemolytic*
7.Neurologic complications in leukemia.
Jee Sook HAHN ; Si Chan KIM ; Sun Ju LEE ; Yoo Hong MIN ; Yun Woong KO
Korean Journal of Hematology 1992;27(2):249-260
No abstract available.
Leukemia*
8.Evaluation of serum levels of soluble interleukin-2 receptor in patients with acute leukemia.
Si Chan KIM ; Yoo Hong MIN ; Sun Ju LEE ; Jee Sook HAHN ; Yun Woong KO
Korean Journal of Hematology 1993;28(2):299-305
No abstract available.
Humans
;
Interleukin-2*
;
Leukemia*
9.Analysis of C-kit expression in acute leukemic cells(1).
Yoo Hong MIN ; Gil Jin JANG ; Sun Yung RA ; Sun Ju LEE ; Jee Sook HAHN ; Yun Woong KO
Korean Journal of Hematology 1993;28(2):267-277
No abstract available.
10.The Utility of Peripheral Vitrectomy Featuring Scleral Indentation during Scleral Fixation of Intraocular Lenses
Dong Woo LEE ; Seong-Jae KIM ; Inyoung CHUNG ; Woong-Sun YOO
Journal of the Korean Ophthalmological Society 2022;63(7):613-619
Purpose:
We evaluated the utility of peripheral vitrectomy featuring scleral indentation; we compared a group who underwent peripheral vitrectomy to a control group for whom vitrectomy was combined with scleral fixation of intraocular lenses (IOLs) in patients exhibiting IOL dislocations.
Methods:
From January 2018 to December 2020, 20 eyes of patients evidencing IOL dislocations that underwent total vitrectomy, IOL removal, and IOL scleral fixation were evaluated; peripheral vitrectomy with scleral indentation was performed in 10 patients. All operations were performed by the same surgeon. We excluded patients with follow-up periods less than 6 months, those with a history of retinal and/or glaucoma surgery, and patients with retinal abnormalities or glaucoma that might significantly compromise visual acuity. The postoperative best-corrected visual acuity, intraocular pressure, astigmatism changes, and complications were retrieved from the medical records.
Results:
Six months after surgery, the best corrected visual acuity was 0.95 (the Snellen measure) in the group who underwent peripheral vitrectomy featuring scleral indentation, and 0.60 in the control group (p = 0.029). The total astigmatism values were 0.48 diopter in the former and 2.80 diopter in the latter group; the difference was significant (p < 0.001).
Conclusions
In patients with IOL dislocations who underwent vitrectomy combined with IOL scleral fixation, improvements in visual acuity were further enhanced when peripheral vitrectomy was combined with scleral indentation. Complete removal of the peripheral vitreous may stabilize IOL positioning by the remnant vitreous.