| CASE REPORT |
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| Year : 2016 | Volume
: 15
| Issue : 2 | Page : 61-62 |
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Bilateral ring-shaped corneal opacity: case report and review of the literature
Raquel Almeida1, Miguel Ruão2, Inês Almeida1, Filipa D Rodrigues1, Cláudia Costa-Ferreira1, João Chibante-Pedro1
1 Ophthalmology Department of Centro Hospitalar de Entre o Douro e Vouga; Ophthalmologist, Department of Ophthalmology, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
2 Ophthalmology Department of Centro Hospitalar de Entre o Douro e Vouga; Resident in Ophthalmology, Department of Ophthalmology, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
Correspondence Address:
MD Raquel Almeida
Rua Dr. Cândido de Pinho, 4520-211 - Santa Maria da Feira
Portugal
 Source of Support: None, Conflict of Interest: None
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Purpose: To describe a rare bilateral corneal ring-shaped opacity, not categorized as corneal dystrophy or degeneration occurring without any associated ocular or systemic disease.
Methods: Case report and review of the literature.
Results: The authors describe the clinical history and examination of an 80 years old man, with an asymptomatic bilateral and symmetrical ring-shaped corneal opacity in the deep stroma of the corneal mid-periphery. The surrounding corneal stroma was clear, and the tear film, epithelium and its basement membrane, Descemet’s membrane and endothelium were normal. This rare corneal anomaly was discovered by chance and its etiology is unknown.
Conclusions: These rings may result from deposits of unknown origin or possibly a rare corneal dystrophy.
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