Bilateral Optic Disc Coloboma with Coexisting Unilateral Retinochoroidal Coloboma in an Adolescent from Northwestern Nigeria: A Case Report
Main Article Content
Keywords
Optic Disc Coloboma, Retinochoroidal Coloboma, adolescent, Northwestern Nigeria
Abstract
Optic disc coloboma is a rare congenital anomaly of the optic nerve. We report a case of bilateral optic disc coloboma with coexisting unilateral retino choroidal coloboma in an adolescent from Northwestern Nigeria, who presented with complaints of difficulty seeing distant objects for 3 months, associated with ocular pains, tearing, and headache while reading. She had never worn spectacles. No previous history of systemic illnesses or trauma. Developmental milestones were optimal for age. Ocular examination revealed a best corrected visual acuity of 6/5 and 6/6 in the right and left eyes respectively. Dilated fundoscopy revealed an enlarged bilateral optic disc with a white bowl-shaped excavation, absent inferior neuro retinal rim, thin superior rim, and an area of well-defined oval retino choroidal defect, located inferior and slightly temporal to the right optic disc. No syndromic features or any ocular complications associated with optic disc and retino choroidal colobomas were seen.
References
2. Nakamura KM, Dielh NN, Mohney BG. Incidence, Ocular findings, and systemic associations of ocular coloboma: a population-based study. Arch Ophthalmol. 2011 Jan;129(1):69-74
3. Dutton GN. Congenital disorders of the optic nerve: excavations and hypoplasia. Eye (Lond). 2004 Nov;18(11):1038-48.
4. Manta AS, Olsson M, Ek U, Wickström R, Fahnehjelm KT. Optic Disc Coloboma in children - prevalence, clinical characteristics, and associated morbidity. Acta Ophthalmol. 2019 Aug;97(5):478-485.
5. Yenice EK, Kara C. Refractive Errors and Ocular Findings in Cases with Ocular Coloboma. J Ret-Vit 2023; 32:257-261
6. Babalola YO, Olawoye OO, Idam PO. Optic disc coloboma in two nigerian siblings: Case report and review of literature. Niger J Clin Pract. 2017 Nov;20(11):1505-1509.
7. Nnamdi NE, Chinwendu OA, Sheriff KA. A case of Optic disc coloboma in Abuja, Nigeria.Nigerian journal of vitreoretinal diseases 5(1):31-33, Jan-Jun 2022.
8. Babalola YO, Oluleye TS. Retinochoroidal coloboma in a female. Nigerian. Niger J Ophthalmol 2020;28:42 5
9. Farhad I, Anujeet P, Yamini B. Bilateral optic disc coloboma. Indian journal of ophthalmology-Case Reports 2024-01; 4 (1):328-329
10. Pujari A, Singh R, Regani H, Agrawal S. Bilateral optic disc coloboma. BMJ Case Rep. 2017 Aug 18;2017:bcr2017221547.
11. Savell J, Cook JR. Optic nerve colobomas of autosomal-dominant heredity. Arch Ophthalmol. 1976 Mar; 94(3):395-400.
12. Gradstein L, Belfair N, Ronen E, Lifshitz T, Biedner B. Functional visual loss in patients with bilateral ocular coloboma. J AAPOS.2002 Jun;6(3):195-7.
13. Takkar B, Venkatesh P, Agarwal D, Kumar A. Optic disc coloboma with pit treated as glaucoma: diagnostic utility of ultrasound and swept source optical coherence tomography. BMJ Case Rep. 2017 Aug 22;2017:bcr2017221967.
Article Sidebar
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
This is an open-access journal and articles are distributed under the terms of the Creative Commons Attribution Non-Commercial Share-Alike License 4.0. This licence allows users to download and share, remix, tweak and build upon the article for non-commercial purposes, so long as the original authorship is acknowledged and the new creations are licensed under identical terms.