Purpose. To study the appearance of a fibrous retrocorneal membrane as
seen by confocal microscopy. Methods. A 67-year-old white woman with
a history of multiple ocular surgeries, including repeated penetrating
keratoplasties for aphakic bullous keratopathy, developed a retrocorn
eal membrane in the right eye. The membrane was first noticed 3 years
after the last corneal transplant and remained stable subsequently. Th
e patient was examined by in vivo white light tandem-scanning confocal
microscopy. Results, At the level of the retrocorneal membrane, confo
cal microscopy disclosed the presence of a hyperreflective fibrous-app
earing layer. Normal endothelial cells could not be found. Anterior to
the hyperreflective layer, activated keratocytes were identified. Con
clusion. Confocal microscopy may allow noninvasive diagnosis of fibrou
s retrocorneal membrane. Additionally, our data suggest that the poste
rior keratocytes might play a role in the production and deposition of
fibrous tissue.