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CRX associated retinal dystrophies are rare? 


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CRX-associated retinal dystrophies are considered rare based on the available literature. Studies have highlighted the clinical characteristics and genetic variants associated with CRX-related retinal dystrophies. These dystrophies can present with diverse phenotypes, including cone-rod dystrophy, macular dystrophy, Leber congenital amaurosis, and retinitis pigmentosa. Additionally, novel clinical presentations of CRX rod-cone dystrophy have been reported, emphasizing the importance of thorough evaluation in cases with atypical features. Optical coherence tomography findings in CRB1-associated retinal dystrophies further contribute to the understanding of these rare conditions, showcasing vascular alterations in affected eyes. Overall, the rarity of CRX-associated retinal dystrophies underscores the need for further research to elucidate genotype-phenotype correlations and improve diagnostic and therapeutic approaches.

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Yes, CRX-associated retinal dystrophies are rare, as indicated by the study's focus on a continuum between common and rare genetic variations impacting retinal structure and disease.
CRX-associated retinal dystrophies, like the novel presentation described, are rare but can manifest with unique clinical features such as optic nerve swelling and cystoid maculopathy, as shown in the study.
CRX-associated retinal dystrophies are relatively rare, accounting for 1.7% of Leber congenital amaurosis, 1.8% of cone-rod dystrophy, and 1.7% of non-syndromic retinitis pigmentosa cases.

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