Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
  • Users Online: 5885
  • Home
  • Print this page
  • Email this page
ORIGINAL ARTICLE
Year : 2003  |  Volume : 51  |  Issue : 1  |  Page : 35-38

Humphrey visual field and frequency doubling perimetry in the diagnosis of early glaucoma.


VST Center for Glaucoma Care, L V Prasad Eye Institute, Hyderabad, India

Correspondence Address:
G Chandrasekhar
VST Center for Glaucoma Care, L V Prasad Eye Institute, Hyderabad
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


PMID: 12701860

Rights and PermissionsRights and Permissions

Purpose: To compare Humphrey Visual Field Analyzer (HVF) and Frequency Doubling Perimetry (FDP) testing in the diagnosis of early glaucoma. Methods: We performed HVF (24-2 standard full threshold) and FDP (N-30) evaluations in 34 consecutive patients with early primary glaucoma and 96 normal subjects. Early glaucoma was defined on the basis of disc changes of glaucoma; the mean deviation on white-on-white perimetry had to be no worse than 6 decibels. Glaucomatous optic neuropathy was defined as a combination of cup-disc asymmetry of more than 0.2, notching, excavation, thinning or pallor of superior or inferior neuroretinal rims, retinal nerve fibre layer defects of the wedge or diffuse type and neuroretinal rim haemorrhage. Both the glaucoma patients and normal subjects had vision better than 6/9 with correction. They had no media opacities other than early nuclear sclerosis and no fundus pathology. Further, normal subjects were free of systemic diseases known to affect the retina or optic nerve, The sensitivity and specificity of HVF and FDP were calculated. Results: There were 44 eligible eyes among the 34 subjects. The glaucomatous disc findings included notch (n=8), pallor (n=21), thinning (n=23) and haemorrhage (n=1) of the neuroretinal rim. The sensitivity and the specificity of the HVF were 52.3% and 57.3% respectively. The sensitivity and the specificity of FDP were 65.9% and 61.5% respectively. Conclusion: The difference between FDP and HVF in the diagnosis of early glaucoma is not marked.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed8677    
    Printed135    
    Emailed7    
    PDF Downloaded439    
    Comments [Add]    
    Cited by others 3    

Recommend this journal