April 2014
Volume 55, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2014
Long-term natural history of geographic atrophy in age-related macular degeneration
Author Affiliations & Notes
  • Steffen Schmitz-Valckenberg
    Ophthalmology, University of Bonn, Bonn, Germany
  • Monika Fleckenstein
    Ophthalmology, University of Bonn, Bonn, Germany
  • Moritz Lindner
    Ophthalmology, University of Bonn, Bonn, Germany
  • Arno P Goebel
    Ophthalmology, University of Bonn, Bonn, Germany
  • Frank G Holz
    Ophthalmology, University of Bonn, Bonn, Germany
  • Footnotes
    Commercial Relationships Steffen Schmitz-Valckenberg, Allergan (C), Allergan (F), Bayer (R), Heidelberg Engineering (F), Heidelberg Engineering (R), Novartis (C), Novartis (F), Novartis (R), Optos (F), Optos (R), Roche (F), Zeiss MediTec (F); Monika Fleckenstein, Heidelberg Engineering (C), Heidelberg Engineering (F), Heidelberg Engineering (R), Optos (C), Optos (F), Zeiss Meditec (F); Moritz Lindner, Heidelberg Engineering (F), Optos (F), Zeiss Meditec (F); Arno Goebel, Heidelberg Engineering (F), Optos (F), Zeiss Meditec (F); Frank Holz, Accuela (F), Acucela (C), Allergan (C), Allergan (F), Bayer (C), Bayer (F), Boehringer Ingelheim (C), Genentech (C), Genentech (F), Heidelberg Engineering (C), Heidlelberg Engineering (C), Merz (C), Novartis (C), Novartis (F), Optos (F), Roche (C), Zeiss (F)
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science April 2014, Vol.55, 5888. doi:
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      Steffen Schmitz-Valckenberg, Monika Fleckenstein, Moritz Lindner, Arno P Goebel, Frank G Holz, ; Long-term natural history of geographic atrophy in age-related macular degeneration. Invest. Ophthalmol. Vis. Sci. 2014;55(13):5888.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose
 

To investigate the natural history of eyes with geographic atrophy (GA) secondary to age-related macular degeneration (AMD) with ≥ 4 years review period.

 
Methods
 

Fifty-seven eyes of 42 patients (median age at baseline 70.5 years, range 60.9 -84.4; median follow-up; 5.2 years, range 4.1 - 10.8) were identified in the FAM (Fundus autofluorescence in AMD)-study database for subjects with unilateral or bilateral GA at baseline in absence of any exudative AMD manifestation and with at least four years of serial standardized examinations. Data assessment included best-corrected central visual acuity (VA) measurements, routine ophthalmological examination and confocal scanning laser ophthalmoscopy including fundus autofluorescence. Total size of atrophy was determined using semi-automated image analysis software.

 
Results
 

For all 57 eyes at baseline, the median VA was 0.4 logMAR (0 - 1.8) and the total GA size was 3.82 mm2 (0.13 - 15.14). During the entire observation period, the change of VA and the absolute enlargement of total GA size varied between -0.5 to 1.3 logMAR and 0.44 to 21.85 mm2, respectively. Change of VA and GA progression per year was 0.05 logMAR/year (-0.11 - 0.27) and 1.47 mm2/year (0.09 to 4.21). A ≥ 3 line visual acuity loss occurred in 27 eyes (47 %). In 4 patients with bilateral GA at baseline, development of secondary choroidal neovascularization during the review period was noted in one eye.

 
Conclusions
 

These findings are in accordance with a continuous enlargement of atrophic patches over time in patients with GA. A high variability in VA changes was noted partly reflecting foveal involvement over time. Long-term natural history data may be not only important for the design of novel therapeutic strategies, but also for interpretation of study outcomes in order to estimate possible benefits in future patient management.

 
Keywords: 412 age-related macular degeneration • 550 imaging/image analysis: clinical • 461 clinical (human) or epidemiologic studies: natural history  
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