Document Detail


Multifocal Pupillography in Early Age-Related Macular Degeneration.
MedLine Citation:
PMID:  24987814     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: To investigate the potential of multifocal pupillographic objective perimetry to assess changes in retinal function with clinical severity of age-related macular degeneration (AMD).
METHODS: Pupil responses were recorded from 40 subjects with AMD and 23 normal control subjects (mean ± SD age, 71.3 ± 5.1 years). Age-related macular degeneration subjects were classified according to the Age-Related Eye Disease Study (AREDS) classification system and allocated into one of four AMD severity groups. Three multifocal pupillographic objective perimetry stimulus variants that were identical in luminance but varied in spatiotemporal sequence were used. In one of the three protocols, stimuli were presented with a pedestal flicker for 266 milliseconds at 15 Hz.
RESULTS: On average, response amplitudes demonstrated a significant change in sensitivity with progression from early-stage (0.32 ± 0.08 dB, t = 3.88) to late-stage (-1.60 ± 0.12 dB, t = -12.7) age-related macular degeneration. Response delays followed a similar trend with the longest delays in AREDS4 (57.2 ± 1.9 milliseconds, t = 29.5). Ring analysis identified the largest mean effect on responses within the central 6 degrees of fixation. The NewStimuli protocol achieved the best diagnostic accuracy across all severity groups with area under the curve values of 0.85 ± 0.066 (AREDS1), 0.908 ± 0.085 (AREDS2), 0.929 ± 0.040 (AREDS3), and 1.0 ± 0.0 (AREDS4).
CONCLUSIONS: The mean effect of AMD on contraction amplitudes and response delays reflected the severity of disease, and the NewStimuli protocol achieved good diagnostic accuracy across all AMD severity groups. Multifocal pupillographic objective perimetry may potentially be a useful method in monitoring progression of AMD and assessing change in retinal function with novel interventions in early AMD. Longitudinal studies are required to identify biomarkers that predict eyes at risk of progression.
Authors:
Faran Sabeti; Ted Maddess; Rohan W Essex; Aiasha Saikal; Andrew C James; Corinne F Carle
Related Documents :
14622944 - Aging, from basic research to pathological applications.
23287024 - One-handed standing pull strength in different postures: normative data.
6644924 - Hematology and clinical chemistry values in the killer whale, orcinus orca l.
1879814 - Germ cell expression of placental alkaline phosphatase in male pseudohermaphroditism.
17689904 - Differential proteomic profiling of mitochondria from podospora anserina, rat and human...
25424474 - Stroke and major bleeding risk in elderly patients aged ≥75 years with atrial fibrillat...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-1
Journal Detail:
Title:  Optometry and vision science : official publication of the American Academy of Optometry     Volume:  -     ISSN:  1538-9235     ISO Abbreviation:  Optom Vis Sci     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8904931     Medline TA:  Optom Vis Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Effect of Ambient Light and Macular Degeneration on Precision Walking.
Next Document:  Autofluorescence Patterns as a Predictive Factor for Neovascularization.