Glucose transporters are abundant in cells with "occluding" junctions at the blood-eye barriers.
Harik SI, Kalaria RN, Whitney PM, Andersson L, Lundahl P, Ledbetter SR, Perry G. Glucose transporters are abundant in cells with "occluding" junctions at the blood-eye barriers. Proc Natl Acad Sci U S A. 1990 Jun; 87(11):4261-4.