Laboratory Studies
- In general, diagnostic tests do not typically need to be performed for suspected blepharitis. Research and other rare protocols may involve eyelid margin cultures, transillumination studies of the meibomian glands, marginal biopsies, or even analysis of gland secretions.
- Testing patients with blepharitis for tear insufficiency or nasolacrimal drainage problems is appropriate because these can be associated with blepharitis and can often complicate management.
Histologic Findings
Seborrheic dermatitis is characterized histologically by spongiosis, mild perivascular, lymphohistiocytic, mononuclear cellular infiltrates in the superficial dermis. Staphylococcal blepharitis is a chronic nongranulomatous inflammation, usually with neutrophils and, often, acanthosis or parakeratosis.
Pinckney J 2nd, Cole P, Vadapalli SP, Rosen T. Phthiriasis palpebrarum: a common culprit with uncommon presentation. Dermatol Online J. Apr 15 2008;14(4):7. [Medline].
Divani S, Barpakis K, Kapsalas D. Chronic blepharitis caused by Demodex folliculorum mites. Cytopathology. Mar 7 2009;[Medline].
Dhingra KK, Saroha V, Gupta P, Khurana N. Demodex-associated dermatologic conditions - A coincidence or an etiological correlate. Review with a report of a rare case of sebaceous adenoma. Pathol Res Pract. Jan 22 2009;[Medline].
Jackson WB. Blepharitis: current strategies for diagnosis and management. Can J Ophthalmol. Apr 2008;43(2):170-9. [Medline].
Luchs J. Efficacy of topical azithromycin ophthalmic solution 1% in the treatment of posterior blepharitis. Adv Ther. Sep 2008;25(9):858-70. [Medline].
Holzchuh FG, Hida RY, Moscovici BK, Villa Albers MB, Santo RM, Kara-José N, et al. Clinical Treatment of Ocular Demodex folliculorum by Systemic Ivermectin. Am J Ophthalmol. Jun 2011;151(6):1030-1034.e1. [Medline].
Arky R. Acromycin V tetracycline HCl. In: Physicians' Desk Reference. 53rd ed. 1999:1514-1515. [Full Text].
Cohen EJ. Cornea and external disease in the new millennium. Arch Ophthalmol. Jul 2000;118(7):979-81. [Medline].
Diaz-Valle D, Benitez del Castillo JM, Fernandez Acenero MJ. Bilateral lid margin ulcers as the initial manifestation of Crohn disease. Am J Ophthalmol. Aug 2004;138(2):292-4. [Medline].
Fraunfelder FT, Roy FH, Steinemann TL. Current Ocular Therapy. 5th ed. 2000:72, 374, 378, 450.
Held KS. Blepharitis. In: Decision Making in Ophthalmology. 2nd ed. 2000:50-51.
Kanski JJ. Marginal blepharitis. In: Clinical Ophthalmology. 1984:1.2-1.4.
Roy FH. Ocular Differential Diagnosis. 7th ed. 2002.
Sullivan JH. Lids and lacrimal apparatus. In: General Ophthalmology. 14th ed. 1995:78-81.
Weisbecker CA, Fraunfelder FT, Rhee D. Physicians' Desk Reference for Ophthalmology. 28th ed. 2000.
Yanoff M, Fine BS. Inflammation. In: Ocular Pathology. 4th ed. 1996:166-168.

