Slit-lamp examination

            1. Check set up of machine

            2. Observe the patient before examination. Obvious signs may be missed on slit-lamp such as different corneal diameter or heterochromia

            3. Position the patient comfortably

            4. Examine the anterior segments and then the posterior segments unless told otherwise

            5. Remember to examine the fornix (scars, adrenochrome etc) and superior bulbar conjunctiva for abeculectomy.

            6. Special note:
             

              • Learn direct, diffuse illumination, scleral scatter, specular reflection
              • Look for iris transillumination
              • If asked, formal AC depth measure
                1. set slit beam mounting at 60 degrees to microscope
                2. use horizontal slit beam
                3. adjust slit beam to join corneal and iris reflections measure slit length and multiply by 1.4 for AC depth in mm.

            Clinical signs which may be easily missed:
             

              •  pigmented lesions of the bulbar conjunctiva
              •  deposits on cornea such as ferritin line or pigments on the endothelium
              •  iris transillumination
              •  small corneal scar
              •  peripheral iridotomy
              •  Montelo's tube
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