Blue sclera symptoms
Blue sclera refers to the bluish tint that occurs on the whites of the eyes, which is typically caused by a thinning or weakening of the collagen in the sclera. This condition, also known as scleral thinning or scleral ectasia, is often associated with a number of underlying medical conditions, including:
1. Osteogenesis imperfecta: This genetic disorder affects the production of collagen, leading to weak and brittle bones. It can also cause blue or purple discoloration of the sclera.
2. Ehlers-Danlos syndrome: This group of inherited disorders also affects collagen production, resulting in hypermobility of joints, stretchy skin, and fragile blood vessels, which can cause blue sclera.
3. Marfan syndrome: This connective tissue disorder affects the skeletal, cardiovascular, and ocular systems. Blue sclera can occur due to the underlying weakening of the collagen in the eyes.
4. Paget's disease: A condition characterized by abnormal bone remodeling, which can affect collagen production in the sclera, causing it to appear blue.
5. Scleromalacia perforans: This condition involves thinning and degeneration of the sclera, leading to visible blood vessels and a bluish tint.
Other potential causes of blue sclera include certain medications, such as long-term corticosteroid use, as well as eye trauma or injury. It is important to note that blue sclera may not cause any symptoms other than the discoloration itself. However, it often occurs alongside other signs and symptoms related to the underlying condition causing it, such as bone fragility, joint hypermobility, or cardiovascular abnormalities. If you notice blue sclera, it is recommended to see a healthcare professional for further evaluation and diagnosis.