Achromatopsia 2
MONDO:0009003Achromatopsia 2 is a condition that affects the color vision. Most people have complete achromatopsia which is characterized by a total absence of color vision (only able to see black, white and shades of gray). Rarely, affected people may have incomplete achromatopsia which is associated with some color discrimination. Other common signs and symptoms include reduced visual acuity, involuntary back-and-forth eye movements, increased sensitivity to light (photophobia), and hyperopia (farsightedness). Achromatopsia 2 is caused by changes (mutations) in the CNGA3 gene and is inherited in an autosomal recessive manner. Although color discrimination cannot be improved, treatments are available to address some of the other associated symptoms.
Also known as: ACHM2, CNGA3 achromatopsia, RMCH2, achromatopsia 2, achromatopsia caused by mutation in CNGA3, achromatopsia type 2, rod monochromacy 2, rod monochromatism 2
41 clinical trials for this condition and its sub-types.
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AI eye test could spot vision loss faster and cheaper
Diagnosis OngoingThis study tests whether an AI-assisted screening tool can detect visual impairment more accurately and efficiently than traditional methods in community settings. About 400 adults aged 50 and older will undergo vision screening and provide feedback. The goal is to see if the AI …
Phase: NA • Sponsor: Singapore Eye Research Institute • Aim: Diagnosis
Last updated Jun 27, 2026 11:00 UTC
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Ancient exercises tested for vision loss health boost
Symptom relief ENROLLING_BY_INVITATIONThis study looks at whether traditional exercises like Tai Chi and Baduanjin can help visually impaired university students improve their balance, mood, and quality of life. Ninety participants will be split into three groups: Tai Chi, Baduanjin, or regular physical education cla…
Phase: NA • Sponsor: Northeast Normal University • Aim: Symptom relief
Last updated Jun 27, 2026 08:01 UTC
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Free eye tests aim to catch vision loss early in harlem and washington heights
Knowledge-focused OngoingThis study offers free vision screenings to underserved adults over 40 living in affordable housing in Harlem and Washington Heights. The goal is to find eye problems like glaucoma, cataracts, and diabetic retinopathy early and connect people with follow-up care. About 749 partic…
Phase: NA • Sponsor: Columbia University • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:54 UTC
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Study reveals top eye diseases behind vision disability in upper egypt
Knowledge-focused OngoingThis study reviews the medical records of 2,000 people in Upper Egypt who applied for visual disability certification between 2020 and 2024. Researchers will analyze eye exams and tests to find the most common diseases causing severe vision loss. The goal is to understand which c…
Sponsor: New Valley University • Aim: Knowledge-focused
Last updated Jun 26, 2026 13:54 UTC