title: Differences in optical coherence tomography of the macula in advanced glaucoma and after a retinal artery occlusion.
abstract: Optical coherence tomography (OCT) was used to evaluate the macular thickness in eyes with advanced glaucoma compared with eyes following a retinal artery occlusion.
  
  
  
  Ten patients with a retinal artery occlusion and 10 patients with severe glaucoma were evaluated with OCT using the macular thickness map protocol.
  
  
  
  The median thinnest macular sector was 183 microns (range: 152 to 223 microns) in patients with glaucoma versus 143 microns (range: 98 to 177 microns) in patients with arterial occlusion (P = .001). Median macular volume was 5.9 mm3 (range: 5.1 to 6.7 mm3) in patients with glaucoma versus 5.1 mm3 (range: 3.6 to 6.1 mm3) in patients with arterial occlusion (P = .015).
  
  
  
  OCT demonstrates that patients with a retinal artery occlusion have significantly reduced macular thickness compared with those with severe glaucoma.
authors.affiliation: Mayo Clinic, 4500 San Pablo Boulevard, Jacksonville, FL 32224, USA.
authors.forename: Rajesh K
authors.initials: RK
authors.lastname: Shetty
authors.forename: James P
authors.initials: JP
authors.lastname: Boilling
authors.forename: Michael W
authors.initials: MW
authors.lastname: Stewart
authors.forename: Michael G
authors.initials: MG
authors.lastname: Heckman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002908:Chronic Disease; D005260:Female; D005902:Glaucoma, Open-Angle / Q000175:diagnosis* / Q000503:physiopathology*; D006801:Humans; D008266:Macula Lutea; D008297:Male; D008875:Middle Aged; D015356:Retinal Artery Occlusion / Q000175:diagnosis*; D012720:Severity of Illness Index; D041623:Tomography, Optical Coherence