title: Effectiveness of entoptic perimetry for locating peripheral scotomas caused by cytomegalovirus retinitis.
abstract: OBJECTIVE
  To determine the the effectiveness of random particle motion, presented on a computer monitor, as a noninvasive test for detecting cytomegalovirus retinitis.
  
  
  METHODS
  A prospective masked study in which patients were asked to trace out any disturbances on a transparency placed over a computer monitor that displayed continuous random particle motion, while the patient fixated on a central spot (entoptic perimetry).
  
  
  METHODS
  The Acquired Immunodeficiency Syndrome Ocular Research Unit at the University of California, San Diego, in La Jolla.
  
  
  METHODS
  Twenty-two men with cytomegalovirus retinitis who were positive for human immunodeficiency virus, 11 men without cytomegalovirus retinitis who were positive for human immunodeficiency virus, and eight men who were negative for human immunodeficiency virus.
  
  
  METHODS
  None.
  
  
  METHODS
  Sensitivities and specificities were used to compare the results of entoptic perimetry with fundus photographs.
  
  
  RESULTS
  Entoptic perimetry demonstrated a 95% sensitivity and a 95% specificity in detection of cytomegalovirus retinitis.
  
  
  CONCLUSIONS
  Entoptic perimetry may be an effective and inexpensive screening test for cytomegalovirus retinitis in hospitals and community clinics.
authors.affiliation: Shiley Eye Center, Department of Ophthalmology, University of California, San Diego School of Medicine, La Jolla, USA.
authors.forename: D J
authors.initials: DJ
authors.lastname: Plummer
authors.forename: J F
authors.initials: JF
authors.lastname: Arevalo
authors.forename: N
authors.initials: N
authors.lastname: Fram
authors.forename: J I
authors.initials: JI
authors.lastname: Quiceno
authors.forename: P A
authors.initials: PA
authors.lastname: Sample
authors.forename: W R
authors.initials: WR
authors.lastname: Freeman
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000150:complications / Q000175:diagnosis*; D017726:Cytomegalovirus Retinitis / Q000150:complications / Q000175:diagnosis*; D004311:Double-Blind Method; D005654:Fundus Oculi; D018023:HIV Seronegativity; D006679:HIV Seropositivity; D006801:Humans; D008297:Male; D011446:Prospective Studies; D012160:Retina / Q000473:pathology; D012607:Scotoma / Q000175:diagnosis* / Q000209:etiology; D012680:Sensitivity and Specificity; D058609:Visual Field Tests / Q000379:methods*