Purposes: Minocycline is a commonly used drug in the management of acn
e and rosacea. Four individual cases of oral minocycline-induced scler
al pigmentation are reported in the dermatologic literature, This is t
he first report in the ophthalmic literature and will add three new ca
ses of probable minocycline-induced scleral pigmentation. Materials an
d Methods: Data on minocycline from the spontaneous reporting systems
of the National Registry of Drug-induced Ocular Side Effects, Food and
Drug Administration, World Health Organization, and Lederle Laborator
ies were reviewed as to minocycline-related scleral pigmentation, Phot
ographs, published cases, discussions with the examining ophthalmologi
sts, and the personal observation of one patient (case 1) are the basi
s of the authors' conclusions. Results: Seven cases of probable oral m
inocycline-induced sclera[ pigmentation are presented, These changes m
ay or may not be associated with minocycline-induced pigmentary change
s in other tissues, such as the skin, teeth, fingernails, bone, thyroi
d, or mucosa. The characteristic scleral pattern is a blue-gray 3- to
5-mm band starting at the limbus, which usually is enhanced in the pal
pebral aperture, possibly due to the photosensitizing properties of th
e drug. Conclusions: Oral minocycline can cause scleral pigmentation.
This pigmentation may resolve within years, or it may be permanent.