例1患者女,43岁。主诉自幼双眼视力差,曾在外院诊断为“先天性黄斑变性”,多年来病情稳定一直未予治疗。全身检查:发育无异常;追溯家族史,无近亲婚配,父母均无高度近视,其母曾在怀孕时因一直牙痛而口服药物治疗,但具体药物不祥;患者有一姐,眼部无异常,视力正常。眼部检查:双眼 Example 1 Female patient, 43 years old. Chief complaint since his childhood poor eyesight, had been diagnosed in the hospital as “congenital macular degeneration,” the condition has not been treated for many years. Whole body examination: no abnormalities in development; traced back to family history, no cousins, no high myopia parents, the mother had a toothache and oral medication during pregnancy, but the specific drugs ominous; patients with a sister, no abnormalities in the eyes, visual acuity normal. Eye examination: eyes