title: Changes in contrast sensitivity after surgery for macula-on rhegmatogenous retinal detachment.
abstract: OBJECTIVE
  To evaluate changes in contrast sensitivity after surgery for macula-on rhegmatogenous retinal detachment (RRD).
  
  
  METHODS
  Prospective, interventional, consecutive, case-control study.
  
  
  METHODS
  This study included 84 eyes of 84 patients with unilateral macula-on RRD undergoing primary scleral buckling or vitrectomy without postoperative macular complication. We examined the logarithm of the minimal angle of resolution best-corrected visual acuity (logMAR BCVA) and contrast sensitivity at 4 spatial frequencies (3, 6, 12, and 18 cycles/degree) using the CSV-1000E (Vector Vision) before and after surgery. From the data obtained with the CSV-1000E, the area under the log contrast sensitivity function was calculated. The logMAR BCVA and contrast sensitivity in the contralateral normal eyes also were measured and were used as normal controls. Clinical data were collected, including age, gender, surgical procedures, the number of retinal tears, circumferential dimension of retinal tears, and area of retinal detachment, to determine the clinical factors related to visual function.
  
  
  RESULTS
  Preoperative contrast sensitivity was significantly worse in eyes with RRD than in normal controls, but the preoperative logMAR BCVA was not different from that of normal controls. Contrast sensitivity decreased significantly after surgery, but logMAR BCVA did not change by surgery. Multiple regression analysis revealed that postoperative contrast sensitivity had a significant correlation with the circumferential dimension of retinal tears, whereas no clinical parameters were associated significantly with postoperative BCVA.
  
  
  CONCLUSIONS
  Surgery for macula-on RRD did not change visual acuity, whereas contrast sensitivity was affected significantly in association with the extent of retinal tears.
authors.affiliation: Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan. Electronic address: fumiki-o@md.tsukuba.ac.jp.
authors.forename: Fumiki
authors.initials: F
authors.lastname: Okamoto
authors.forename: Yoshimi
authors.initials: Y
authors.lastname: Sugiura
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Okamoto
authors.forename: Takahiro
authors.initials: T
authors.lastname: Hiraoka
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Oshika
mesh_terms: D016022:Case-Control Studies; D002387:Cataract Extraction; D015350:Contrast Sensitivity / Q000502:physiology*; D058450:Endotamponade; D005260:Female; D006801:Humans; D008266:Macula Lutea / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012163:Retinal Detachment / Q000503:physiopathology* / Q000601:surgery*; D012591:Scleral Buckling; D013459:Sulfur Hexafluoride / Q000008:administration & dosage; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology; D014821:Vitrectomy
chemical_list: D013459:Sulfur Hexafluoride