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KMID : 0360220200610070828
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Journal of the Korean Ophthalmological Society
2020 Volume.61 No. 7 p.828 ~ p.833
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Visual Field Patterns of Pseudo-optic Discs in Chorioretinal Coloboma
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Kim Seo-Yeon
Jin Sun-Young
Kim Jae-Hoon
Lyu Jung-Mook
Jeong Jae-Hoon
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Abstract
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Purpose: We report three cases of asymptomatic pseudo-optic discs in chorioretinal colobomas highlighted on visual fields patterns.
Case summary: (Case 1) A 36-year-old man was found to have a pseudo-optic disc below the optic nerve with a relatively intact neurosensory retina over the lesion. There were no obvious abnormalities on the visual field test, so he underwent no treatment and was followed up every 6 months. (Case 2) A 37-year-old woman diagnosed with glaucoma had abrupt convergence of the neurosensory retinal layers on the boundary of the pseudo-optic disc and a focal retinal nerve fiber layer defect in the inferior sector. An antiglaucoma eyedrop was used to manage the superior hemifield defect, and no significant progression was observed in the structural and functional tests during the 5-year follow-up. (Case 3) A 57-year-old man had a pseudo-optic disc with diffuse retinal nerve fiber layer atrophy in both the superior and inferior sectors. The pseudo-optic disc had protruded into the vitreous cavity. Antiglaucoma eyedrops were used to manage both the superior and inferior hemifield defects, and no significant progression was observed using the structural and functional tests during the 6-year follow-up period.
Conclusions: Various visual field results may occur with pseudo-optic discs in chorioretinal colobomas depending on the status of residual retinal tissues and underlying glaucoma. Further evaluations and management options should be considered according to the patient’s condition.
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KEYWORD
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Optic disk, Pseudodoubling, Pseudo-optic disc, Uveoretinal Coloboma, Visual fields
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