Rod-cone dystrophy (RCD) is one of the forms of inherited retinal diseases (IRDs) caused by photoreceptor degeneration and leading to significant loss of visual function. In some cases, patients with late-onset RCD do not independently report complaints typical of IRDs, and standard and additional ophthalmological examinations performed using conventional methods fail to reveal pathological changes, which complicates and delays diagnosis. This article presents a case of late-onset RCD diagnosed through the active identification of characteristic complaints, thorough medical history taking, and targeted use of modern functional and structural retinal imaging techniques with an extended visualization range.