title: Macular and peripapillary spectral domain optical coherence tomography changes in sickle cell retinopathy.
abstract: OBJECTIVE
  To assess peripapillary retinal nerve fiber layer, macular ganglion cell complex, and total macular thicknesses using spectral domain optical coherence tomography on sickle cell disease patients with and without sickle retinopathy.
  
  
  METHODS
  Nineteen eyes of 11 patients with hemoglobin sickle cell disease, 65 eyes of 36 patients with hemoglobin SS disease, and 48 eyes of 24 healthy subjects underwent spectral domain optical coherence tomography scanning (RTVue). Eyes of patients with sickle cell disease were classified into 3 groups according to posterior segment changes: no retinopathy (n = 64), nonproliferative retinopathy (n = 12), and proliferative retinopathy (n = 8).
  
  
  RESULTS
  The central fovea in eyes with proliferative retinopathy was thickened compared with control group, sickle cell disease without retinopathy, and nonproliferative retinopathy (P = 0.004); a difference between proliferative retinopathy and sickle cell disease without retinopathy groups was still present after age adjustment (P = 0.014). Eyes with proliferative changes showed higher ganglion cell complex focal loss of volume compared with control group (P = 0.002), even after age adjustment (P = 0.004). Thinning of the nasal retinal nerve fiber layer quadrant was observed in eyes with proliferative retinopathy (P < 0.001); however, no retinal nerve fiber layer thickness difference was observed after age correction (P > 0.05).
  
  
  CONCLUSIONS
  Peripheral changes secondary to proliferative sickle retinopathy were associated with thinning of macular inner retinal layers and thickening of central fovea.
authors: *Fundação Altino Ventura, Recife, Brazil; and †Fundação Hemope, Recife, Brazil.
authors: Fabiana
authors: F
authors: Brasileiro
authors: Thayze T
authors: TT
authors: Martins
authors: Silvio B
authors: SB
authors: Campos
authors: João L
authors: JL
authors: Andrade Neto
authors: Vasco T
authors: VT
authors: Bravo-Filho
authors: Aderson S
authors: AS
authors: Araújo
authors: Tiago E
authors: TE
authors: Arantes
mesh_terms: D000328:Adult; D000755:Anemia, Sickle Cell / Q000150:complications* / Q000175:diagnosis; D005260:Female; D006801:Humans; D008266:Macula Lutea / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009412:Nerve Fibers / Q000473:pathology*; D009898:Optic Disk / Q000473:pathology*; D011446:Prospective Studies; D012164:Retinal Diseases / Q000150:complications* / Q000175:diagnosis; D012165:Retinal Ganglion Cells / Q000473:pathology*; D041623:Tomography, Optical Coherence; D014792:Visual Acuity