title: Diffuse unilateral subacute neuroretinitis: report of a case from the Indian subcontinent and the importance of immediate photocoagulation.
abstract: OBJECTIVE
  To report a case of DUSN from the Indian subcontinent and emphasize the importance of immediate photocoagulation.
  
  
  METHODS
  Review of case record.
  
  
  RESULTS
  The referring ophthalmologist had photographed the subretinal worm but had not undertaken laser photocoagulation. On presentation to us the patient had features typical of DUSN but no worm could be detected despite repeated examinations. Failure to localize the worm at subsequent examinations resulted in only partial recovery of vision.
  
  
  CONCLUSIONS
  Whenever the nematode is detected, immediate laser photocoagulation of the worm is necessary as the migratory worm may be difficult to identify later on. This is necessary to prevent the otherwise natural decline in vision.
authors.affiliation: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India. venkyprao@yahoo.com
authors.forename: Pradeep
authors.initials: P
authors.lastname: Venkatesh
authors.forename: Sujoy
authors.initials: S
authors.lastname: Sarkar
authors.forename: Satpal
authors.initials: S
authors.lastname: Garg
mesh_terms: D000328:Adult; D000818:Animals; D000969:Antinematodal Agents / Q000627:therapeutic use; D004585:Electrooculography; D004596:Electroretinography; D005074:Evoked Potentials, Visual; D015822:Eye Infections, Parasitic / Q000175:diagnosis* / Q000188:drug therapy / Q000601:surgery; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D006801:Humans; D007194:India; D017075:Laser Coagulation; D008297:Male; D009348:Nematoda / Q000302:isolation & purification; D009349:Nematode Infections / Q000175:diagnosis* / Q000188:drug therapy / Q000601:surgery; D012173:Retinitis / Q000175:diagnosis* / Q000188:drug therapy / Q000601:surgery; D013997:Time Factors; D014195:Travel
chemical_list: D000969:Antinematodal Agents