REFRACTIVE DIPLOPIAS
\ɹɪfɹˈaktɪv dɪplˈə͡ʊpi͡əz], \ɹɪfɹˈaktɪv dɪplˈəʊpiəz], \ɹ_ɪ_f_ɹ_ˈa_k_t_ɪ_v d_ɪ_p_l_ˈəʊ_p_iə_z]\
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A visual symptom in which a single object is perceived by the visual cortex as two objects rather than one. Disorders associated with this condition include REFRACTIVE ERRORS; STRABISMUS; OCULOMOTOR NERVE DISEASES; TROCHLEAR NERVE DISEASES; ABDUCENS NERVE DISEASES; and diseases of the BRAIN STEM and OCCIPITAL LOBE.
By DataStellar Co., Ltd
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Sporadic Retinoblastoma
- A malignant arising nuclear layer retina that is most primary eye in children. The tumor tends to occur early childhood or infancy present at birth. majority are sporadic, but condition may be transmitted as autosomal dominant trait. Histologic features include dense cellularity, small round polygonal cells, areas of calcification and necrosis. An abnormal pupil reflex (leukokoria); NYSTAGMUS; STRABISMUS; visual loss represent common clinical characteristics this condition. (From DeVita et al., Cancer: Principles Practice Oncology, 5th ed, p2104)