Objective and subjective optical-quality measurements in subjects with keratitis and age-related macular degeneration

Abstract

The use of commercial devices that objectively measure retinal image quality has increased in recent years although limited mostly to the analysis of surgical emmetropization techniques. In this work, we propose the use of optical-quality devices (an aberrometer and a double-pass device) to be extended to other highly prevalent ocular pathologies such as keratitis and age-related macular degeneration. For this, we determined whether the objective data correlate with visual performance. Data, including the contrast-sensitivity function, were taken for 26 patients. The results show a clear correspondence between objective and psychophysical measurements, revealing that optical-quality devices can be useful for additional visual clinical applications.

Keywords:

• aberrations
• ocular scattering
• contrast-sensitivity
• keratitis
• age-related macular degeneration

Acknowledgements

The authors wish to thank David Nesbitt for translating the text into English. This research was supported by the ONCE Foundation (Spain), Ministerio de Ciencia y Tecnología (Spain) Grant FIS 2006-01369 and Junta de Andalucía (Spain) Grant P06-FQM-01359.