A 44-year-old woman presents to the clinic with itchy and gritty-feeling eyes. Her medical history is remarkable for seborrheic

A 44-year-old woman presents to the clinic with itchy and gritty-feeling eyes. Her medical history is remarkable for seborrheic dermatitis which she manages with over-the-counter shampoos and creams. The patient normally wears glasses and reports no changes in vision or recent exposure to new facial products. Vital signs are within normal limits. On examination, the lower eyelids are red and swollen, and there is tearing with crusting on the lower eyelashes. Greasy flakes can be seen at the eyelid bases. The sclera and cornea appear normal bilaterally. Skin flaking can be seen on the patient’s scalp and cheeks. Which of the following is the most likely diagnosis? Anterior blepharitis Demodex brevis infestation Dry eye disease Posterior blepharitis