Slit Lamp Examination to Diagnose Clinical Features of Ocular Surface Squamous Neoplasia

To begin the examination, ask the subject to sit behind the slit lamp and explain the testing procedures to the subject. Edit the subject's information. Disinfect the setup by wiping down the slit lamp head and chin rest with an alcohol swab.

To position the subject for examination, place their chin on the chin rest. Ask the subject to rotate the eyeball to fully expose the lesion and observe the lesion under the slit lamp. Then perform anterior segment photography with the slit lamp to document clinical features.

Flip the eyelids to observe whether forniceal or palpebral conjunctiva are affected. Note all the listed details of the lesion during the clinical examination.