The macula is the central portion of the retina. At the centre of the macula is the fovea. Although the fovea is only 0.5 mm in diameter, it is responsible for the ability to read, drive, and recognize fine detail, including facial features. order cialis professional Age-related macular degeneration (AMD) is now the leading cause [...]

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Herpes zoster Herpes zoster (HZ), or shingles, is reactivation of the latent varicella-zoster virus with dermatomal distribution. Up to 20% of people experience HZ during their lives.1 Incidence of herpes zoster among whites is 1.3 cases per 1000 people per year2; incidence is much lower among African-Americans. Herpes zoster ophthalmicus (HZO) involves the ophthalmic division [...]

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