Correction of perceived visual distortions using a software application and correlation to age-related macular degeneration

Therapeutic Advances in Ophthalmology
Muhammad HassanQuan Dong Nguyen

Abstract

To investigate the use of software-generated corrections in neutralizing perceived distortions in age-related macular degeneration. A tablet-based application was utilized to elicit distortions. Five subjects (seven eyes: neovascular age-related macular degeneration and three eyes: non-neovascular age-related macular degeneration) traced the reference lines, and their distortion traces were recorded. To counter distortion, a software-generated trace was re-traced by subjects to produce a corrected trace. Final traces were superimposed on optical coherence tomography images and following distances calculated: (a) dDT: distance between distortion trace and reference line; (b) dGT: distance between software-generated trace and corrected trace; (c) dCT: distance between corrected trace and reference line. Mean percent improvement in distortion was reported. Mean effectiveness of correction was also reported by utilizing t test to compare dDT and dCT. The number of distortion traces with underlying lesions on optical coherence tomography was also analyzed. Mean age of the subjects was 76.6 (±9.5) years. Each patient traced six reference lines and each was considered a separate case. Out of 30 cases, 17 (56.6%) elicited distortion. M...Continue Reading

References

Jun 1, 1993·Archives of Ophthalmology·R A Schuchard

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Software Mentioned

Samsung Galaxy Tab
Stata
MATLAB
Heidelberg Eye Explorer

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