Retinosis pigmentaria sine pigmento unilateral: a propósito de un caso

Eden Belmont Wasserlauf; Dolores Varela Fuentes; Agustín Ignacio Fernández

doi:10.70313/2718.7446.v17.n03.353

Authors

Eden Belmont Wasserlauf Servicio de Oftalmología, HIGA San Martín, La Plata, Argentina.
Dolores Varela Fuentes Servicio de Oftalmología, HIGA San Martín, La Plata, Argentina
Agustín Ignacio Fernández Servicio de Oftalmología, HIGA San Martín, La Plata, Argentina.

DOI:

https://doi.org/10.70313/2718.7446.v17.n03.353

Keywords:

retinitis pigmentosa, sine pigmentum, unilateral

Abstract

Our objective is to present a case of unilateral retinitis pigmentosa (RP) sine pigmento, a 41-year-old female patient evaluated at our institution with a 2-year evolution of decreased visual acuity in the right eye (RE). On physical examination, visual acuity in right eye 7/10 best corrected and in left eye 10/10 without correction. Biomicroscopy in the right eye showed a posterior stellate subcapsular cataract and fundus examination revealed arteriolar narrowing, alteration of the retinal pigment epithelium and whitish lesions in the macular region, which were also found in the retinal periphery. The computed visual field of the RE showed a contraction pattern, while the electroretinogram indicated a subnormal response under scotopic conditions in the RE. On the other hand, studies performed in the LE were found to be within normal parameters. In conclusion, the presentation of a case of unilateral retinitis pigmentosa sine pigmento is extremely unusual, which motivated us to study this case in depth.

References

Takahashi VKL, Takiuti JT, Jauregui R et al. Rates of bone spicule pigment appearance in patients with retinitis pigmentosa sine pigmento. Am J Ophthalmol 2018; 195: 176-180.

Francois J, Verriest G. Rétinopathie pigmentaire unilatérale. Ophthalmologica 1952; 124: 65-87.

Nazar C, Feldman M, González R, Espinoza R. Unilateral retinitis pigmentosa: a case report. Arch Soc Esp Oftalmol 2017; 92: 287-290.

Bhattarai D, Paudel N, Adhikari P et al. Unilateral retinitis pigmentosa. Nepal J Ophthalmol 2015; 7: 56-69.

Farrell DF. Unilateral retinitis pigmentosa and cone-rod dystrophy. Clin Ophthalmol 2009; 3: 263-270.

Pearlman JT, Saxton J, Hoffman G. Unilateral retinitis pigmentosa sine pigmento. Br J Ophthalmol 1976; 60: 354-360.

Sabbaghi H, Behbahani S, Daftarian N, Ahmadieh H. New criteria for evaluation of electroretinogram in patients with retinitis pigmentosa. Doc Ophthalmol 2021; 143: 271-281.