title: Comparative evaluation of RetCam vs. gonioscopy images in congenital glaucoma.
abstract: OBJECTIVE
  To compare clarity, exposure and quality of anterior chamber angle visualization in congenital glaucoma patients, using RetCam and indirect gonioscopy images.
  
  
  METHODS
  Cross-sectional study Participants. Congenital glaucoma patients over age of 5 years.
  
  
  METHODS
  A prospective consecutive pilot study was done in congenital glaucoma patients who were older than 5 years. Methods used are indirect gonioscopy and RetCam imaging. Clarity of the image, extent of angle visible and details of angle structures seen were graded for both methods, on digitally recorded images, in each eye, by two masked observers.
  
  
  METHODS
  Image clarity, interobserver agreement.
  
  
  RESULTS
  40 eyes of 25 congenital glaucoma patients were studied. RetCam image had excellent clarity in 77.5% of patients versus 47.5% by gonioscopy. The extent of angle seen was similar by both methods. Agreement between RetCam and gonioscopy images regarding details of angle structures was 72.50% by observer 1 and 65.00% by observer 2.
  
  
  CONCLUSIONS
  There was good agreement between RetCam and indirect gonioscopy images in detecting angle structures of congenital glaucoma patients. However, RetCam provided greater clarity, with better quality, and higher magnification images. RetCam can be a useful alternative to gonioscopy in infants and small children without the need for general anesthesia.
authors.forename: Raj V
authors.initials: RV
authors.lastname: Azad
authors.forename: Parijat
authors.initials: P
authors.lastname: Chandra
authors.affiliation: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Anuradha
authors.initials: A
authors.lastname: Chandra
authors.forename: Aparna
authors.initials: A
authors.lastname: Gupta
authors.forename: Viney
authors.initials: V
authors.lastname: Gupta
authors.forename: Ramanjit
authors.initials: R
authors.lastname: Sihota
mesh_terms: D000293:Adolescent; D000328:Adult; D000867:Anterior Chamber / Q000473:pathology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D005901:Glaucoma / Q000151:congenital* / Q000175:diagnosis*; D006068:Gonioscopy / Q000379:methods*; D006801:Humans; D008297:Male; D011446:Prospective Studies; D012372:ROC Curve; D015203:Reproducibility of Results; D012160:Retina / Q000473:pathology*; D055815:Young Adult