Microperimetry biofeedback training in a patient with bilateral myopic macular degeneration with central scotoma.
Microperimetry-1 (MP-1) evaluation and MP-1 biofeedback training were done in a case of bilateral myopic macular degeneration with a central scotoma. Fixation behavior, location and stability of preferred retinal locus, eye movement speed, and mean sensitivity were assessed. The mean retinal sensitivities before, after and at 1-year after training in the right eye were 2.9 dB, 2.9 dB and 3.7 dB and in the left eye were 3.5 dB, 3.7 dB and 1.8 dB. The fixation point in the 2° gravitation circle, improved from 40% to 50% in the right eye and from 43% to 67% in the left eye. The average eye speed before, after and at 1-year after training in right eye were 0.19°/s, 0.26°/s and 0.25°/s and in left eye were 0.36°/s, 0.25°/s and 0.27°/s. Thus, biofeedback training using MP-1 can improve the visual function in patients with macular diseases and central scotoma.
Rajiv
R
Raman
Deepali
D
Damkondwar
Srividya
S
Neriyanuri
Department of vitreo-retina, Shri Bhagwan Mahaveer Vitreoretinal Services, Medical Research Foundation, Sankara Nethralaya, Chennai, Tamil Nadu, India.
Tarun
T
Sharma
D001676:Biofeedback, Psychology; D005260:Female; D006801:Humans; D008266:Macula Lutea / Q000473:pathology; D008268:Macular Degeneration / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D008875:Middle Aged; D047728:Myopia, Degenerative / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D011932:Reading; D012607:Scotoma / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D041623:Tomography, Optical Coherence / Q000379:methods; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields / Q000502:physiology*