**6. Slit-lamp examination of the fundus**

Although not generally considered as a method of ophthalmoscopy, fundus examination with the slit lamp offers an important addition to the traditional methods of direct and indi‐ rect ophthalmoscopy. It offers the advantage of high-power magnification through the mi‐ croscope and flexible illumination with the slit-lamp beam. With appropriate contact lenses, it can offer higher magnification than direct ophthalmoscopy and a field several times wider than indirect ophthalmoscopy. These methods have become particularly important in com‐ bination with laser treatment.

Because the slit-lamp microscope has a fixed focus on a plane approximately 10 cm in front of the objective and because the image of the fundus of an emmetropic eye appears at infini‐ ty, the fundus cannot be visualized without the help of additional lenses. There are several options.
