Step 1 → Neurology and Special Senses Eye Surface and EyelidsPreview this topic sectionPreview the conditions. Plans unlock the full Step 1 details when you need them. Free Biochemistry Free Microbiology Plans Eye Surface and Eyelids conditions Blepharitis Chalazion Conjunctivitis Hordeolum (Stye) Orbital Cellulitis Preseptal Cellulitis Uveitis Xanthelasma