16.4

Cone Dystrophy

Introduction:

Cone dystrophy encompasses a heterogeneous group of hereditary retinal dystrophies where isolated cone function is affected primarily.

Clinical Features:

The clinical appearance can vary, but a central bulls eye-type maculopathy is most characteristic (Fig. 16.4.1). Early disease may present with a normal clinical examination. Symptoms include loss of visual acuity, color vision, and hemeralopia.

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