Congenital primary aphakia
MONDO:0012456Congenital primary aphakia (CPA) is characterized by an absence of the lens. The prevalence is unknown. CPA can be associated with variable secondary ocular defects (including aplasia/dysplasia of the anterior segment of the eye, microphthalmia, and in some cases absence of the iris, retinal dysplasia, or sclerocornea). CPA results from early developmental arrest, around the 4th-5th week of embryogenesis, which prevents the formation of any lens structure. Mutations in the FOXE3 gene were identified in three affected siblings born to consanguineous parents.
Also known as: anterior segment dysgenesis 2, multiple subtypes, aphakia, congenital primary, congenital absence of lens, congenital aphakia, ASGD2, CPA, anterior segment dysgenesis 2
25 clinical trials for this condition and its sub-types.
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New eye lens could let cataract patients ditch glasses
Disease control Not yet recruitingThis study tests a new type of artificial lens for cataract surgery that may adjust focus like a natural lens. About 100 adults needing cataract surgery will get this lens in one eye and a standard lens in the other. Researchers will check for complications and measure vision imp…
Phase: NA • Sponsor: Adaptilens, Inc. • Aim: Disease control
Last updated Jun 27, 2026 12:39 UTC
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New lens aims to sharpen vision after cataract surgery
Disease control Not yet recruitingThis study tests a new trifocal intraocular lens (IOL) for people having cataract surgery. The lens is designed to help see clearly at near, intermediate, and far distances. Researchers will compare the new lens to a commercially available one in 66 participants, measuring distan…
Phase: NA • Sponsor: Alcon Research • Aim: Disease control
Last updated Jun 27, 2026 12:34 UTC