Possible correlations of ocular blood flow parameters with intraocular pressure and visual-field alterations in glaucoma: a study by means of color Doppler imaging.
The authors evaluated, by means of color Doppler imaging, the blood flow of the ophthalmic artery, ciliary arteries and central retinal artery in normal and glaucomatous subjects. In normals they found that flow velocities of all considered vessels progressively decline while resistivity indices increase with advancing age. In glaucomatous subjects there was a statistically significant reduction of the mean systolic peak flow velocity of the ophthalmic artery in comparison with normals. Glaucomatous eyes with uncontrolled IOP and with visual-field worsening showed a statistically significant decrease in the end-diastolic flow velocities and an increase in the resistivity index values in ciliary arteries.
Eye Clinic of the University of Florence, Italy.
F
F
Galassi
G
G
Nuzzaci
A
A
Sodi
P
P
Casi
S
S
Cappelli
A
A
Vielmo
D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001783:Blood Flow Velocity / Q000502:physiology; D002924:Ciliary Body / Q000098:blood supply / Q000000981:diagnostic imaging; D005123:Eye / Q000098:blood supply*; D005901:Glaucoma / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000503:physiopathology*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D008875:Middle Aged; D009880:Ophthalmic Artery / Q000000981:diagnostic imaging / Q000502:physiology; D010277:Parasympathomimetics / Q000627:therapeutic use; D012161:Retinal Artery / Q000000981:diagnostic imaging / Q000502:physiology; D018615:Ultrasonography, Doppler, Color; D014794:Visual Fields / Q000502:physiology*
D000319:Adrenergic beta-Antagonists; D010277:Parasympathomimetics