Slit-Lamp Illumination Techniques

1) Diffuse illumination

2) Direct focal illumination

- Conical beam

- Parallelopiped

- Optical section

3) Indirect illumination

4) Retroillumination

- Direct

- Indirect

- Obstructive

- Respersive

- Refractile

- Fundus retroillumination

5) Specular reflection

6) Sclerotic Scatter

7) Oscillating Illumination of Koeppe

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