Читать книгу Graves' Orbitopathy - Группа авторов - Страница 38

There is clear evidence that DON can be present with normal vision [4, 13]. In some patients, visual acuity of 1.0 may represent a reduction on their normal acuity, while others will truly have no objective reduction by the time DON is diagnosed. Indeed 50–70% of eyes with DON have acuities of 0.5 or better [28, 72, 73].