May 8, 2026 · American journal of ophthalmology · DOI: 10.1016/j.ajo.2026.05.002

Genotype-phenotype correlations in RPGRIP1-associated retinal dystrophy in a nationwide Japanese cohort

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The authors aimed to investigate genotype-phenotype correlations in patients with RPGRIP1-associated retinal dystrophy within a nationwide Japanese cohort. Their findings revealed distinct clinical phenotypes—Leber congenital amaurosis (LCA) and achromatopsia (ACHM)—associated with specific genetic variants, particularly the prevalent exon 18 deletion. These results enhance understanding of the disease's clinical spectrum and have implications for diagnosis and treatment strategies.

Kei Mizobuchi, Taiga Inooka, Takuya Aoki, Hazuki Anzai, Kaoruko Torii, Kazuki Hashimoto, Akiko Suga, Ryo Ando, Miki Hiraoka, Taro Kominami, Shigeru Sato, Motokazu Tsujikawa, Kohji Nishida, Yusuke Murakami, Toru Nakazawa, Akiko Maeda, Kazuki Kuniyoshi, Yasuhiro Ikeda, Hiroyuki Kondo, Mineo Kondo, Koji M Nishiguchi, Akira Murakami, Maki Fukami, Sachiko Nishina, Takeshi Iwata, Hirotomo Saitsu, Kazushige Tsunoda, Shinji Ueno, Yoshihiro Hotta, Tadashi Nakano, Takaaki Hayashi

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