Blue Cone Monochromacy Causes Deterioration in Visual Acuity and Color Vision in a Boy
Myopia and strabismus are common in children and are associated with impaired vision. However, refractive correction and treatment to prevent amblyopia usually overcome this impairment. When the usual treatment fails to improve vision, or when the child’s vision further deteriorates, other causes for visual impairment should be investigated.
Degenerative retinal diseases are diagnosed in the presence of family history or during the first 2-4 decade. Abnormal retinal hyperpigmentation and degenerative signs are the most common clues for this diagnosis. However, there is not always an abnormal fundus appearance. Cone rod dystrophy (CRD) is a very prevalent retinal dystrophy. Although all 3 modes of inheritance are possible, the most common is the recessive inheritance, especially in the presence of consanguinities or sick relatives. The autosomal recessive childhood-onset retinal dystrophies are a heterogeneous group of diseases affecting rods and cones, usually with late onset. Read more………………..
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