Effectiveness of Low Vision Rehabilitation Using Microperimetric Acoustic Biofeedback Training in Patients with Central Scotoma

Şahlı, Esra; Altınbay, Deniz; Kızıltunç, Pınar Bingöl; İdil, Aysun

doi:10.1080/02713683.2020.1833348

Cited by 21 publications

(24 citation statements)

References 39 publications

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“… 9 , 34 , 35 In AMD, the most common PRL location is the nasal quadrant, followed by the superior quadrant. 7 , 9 , 19 Similarly, in our study, we determined that the PRL was located in the nasal retinal quadrant in 31%, superior quadrant in 26%, inferior quadrant in 16%, and temporal quadrant in 11% of eyes, while 16% of PRLs were located centrally. We detected no statistically significant relationship between PRL location and fixation stability.…”

Section: Discussionsupporting

confidence: 59%

“…Studies have shown that the PRL, which replaces the nonfunctioning fovea in eyes with central scotoma, is less stable as its distance from the fovea increases. 6 , 9 , 10 , 27 The mean PRL-fovea distance in AMD was reported to be 6.69°±7.4° by Erbezci and Oztürk 9 and 6.25°±2.38° by Sahli et al, 19 while Fujita et al 28 reported distances between 5° and 11°. In our study, the mean PRL-fovea distance was 5.15°±3.31° (range, 0.75°-14.2°).…”

Section: Discussionmentioning

confidence: 96%

“…Microperimetric PRL training with acoustic and visual stimuli (trained retinal locus; TRL) can increase fixation stability and improve reading speed. 18 , 19 , 20 Sahli et al 19 reported an increase in reading speed and quality of life with TRL training performed with microperimetric biofeedback signals in patients with central scotoma, most of whom had AMD. Therefore, evaluating fixation stability and PRL characteristics is essential in central scotoma.…”

Section: Introductionmentioning

confidence: 99%

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Fixation Stability and Preferred Retinal Locus in Advanced Age-Related Macular Degeneration

Altınbay¹,

İdil²

2022

tjo

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Objectives: To evaluate fixation stability and characteristics of the preferred retinal locus (PRL) in patients with advanced age-related macular degeneration (AMD). Materials and Methods: Sixty-three eyes of 63 patients with AMD who presented to the low vision unit were included in this prospective study. Sociodemographic characteristics, eye examination findings, and reading performance results with the Minnesota Low Vision Reading test were evaluated. Microperimetry was used to evaluate fixation stability and PRL characteristics. Results: There was unstable fixation in 68% of the eyes, relative stable fixation in 27%, and stable fixation in 5%. The mean PRL-foveal distance was 5.15°±3.31° (range 0.75°-14.2°). PRL-foveal distance was greater in cases with unstable fixation than cases with stable fixation (p=0.023). Distance of the PRL from the lesion margin was not associated with absolute scotoma size or fixation stability (p=0.315, p=0.095, respectively). PRLs were most frequently located in the nasal quadrant (31%), followed by the superior quadrant (26%) of the retina. There was no significant relationship between PRL location and fixation stability (p=0.088). Fixation stability was significantly associated with reading speed (p=0.003). Conclusion: In advanced AMD, PRL-foveal distance is an important factor in fixation stability. Knowing the factors that affect fixation stability may be important in determining low vision rehabilitation strategies for these patients because of the strong association between fixation stability and reading speed.

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Section: Discussionsupporting

confidence: 59%

Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Fixation Stability and Preferred Retinal Locus in Advanced Age-Related Macular Degeneration

Altınbay¹,

İdil²

2022

tjo

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“…However, Zheng [ 35 ] reported that patients have a higher demand for rehabilitation training of visual function, potentially related to the type of rehabilitation training and individual characteristics of patients. Clinical practice suggests that [ 36 – 39 ] rehabilitation training can improve the ability to utilize residual vision, and additional forms of rehabilitation training could be explored in the future to provide targeted rehabilitation training based on patients' needs.…”

Section: Discussionmentioning

confidence: 99%

Demand preferences for health management services in a population of older adults with visual impairment in China: a conjoint analysis

Wang

2022

BMC Geriatr

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Background Visual impairment (VI) seriously affects the quality of life of the older adults. It is important to formulate appropriate health management strategies for the older adults with VI to help delay the disease development and progression, and improve life quality. The aim of this study was to understand the demand preference for health management services of the older adults with VI, and to provide a reference for the development of future health management strategies in this population. Methods The conjoint analysis method was used to analyze demand preferences for health management services of the older adults with VI. 11 keywords were extracted after literature analyzed, 6 keywords were selected as the attributes of health management strategy after expert discussion and the level of each attribute was determined. Then 18 representative virtual health management strategies were formed by combination of different attribute levels through orthogonal design, and older adults with VI were asked to score. A total of 334 older adults with VI who attended the ophthalmology department of the First Affiliated Hospital of China Medical University and the Fourth People's Hospital of Shenyang from February 27, 2021 to June 30, 2021were enrolled in this study by stratified sampling. Of the 334 included people, 80 had grade 1 VI, 80 had grade 2 VI, 84 had grade 3 VI, and 90 had grade 4 VI. Results The relative importance of health management services ranked by older adults with VI was continuing care (24.033%), visual aid application (19.61%), health education (16.241%), preventive healthcare (15.667%), safety management (12.757%), and rehabilitation training (11.392%). The utility values of each level of continuing care, safety management and preventive healthcare were positive, whereas the utility values of each level of visual aid application, health education and rehabilitation training were negative. The relative importance and utility values of health management services were different for the older adults with different grades of VI. Conclusions From the whole group, the older adults with VI have a higher preference for continuing care and a lower preference for rehabilitation training. The preference of the older adults with different grades of VI is different, so medical workers can formulate corresponding health management strategies according to their different demand preferences, and carry out hierarchical health management. Services that they preferred should be satisfied as much as possible in the health management strategy, while the reasons for the services with lower preference can be explored and make targeted improvement to meet the demand preferences of them.

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“…All participants trained with a TRL showed a shift in PRL location toward the superior quadrant of the retina. Similarly, Morales et al (2020) and Sahli et al (2020) using microperimetry-informed biofeedback fixation training to teach patients to use a more convenient retinal location for fixation, reported improvement in fixation stability, reading acuity, reading speed and in self-reported visual functions (as assessed by the VFQ-25).…”

Section: Oculomotor Interventionsmentioning

confidence: 99%

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Effectiveness of Low Vision Rehabilitation Using Microperimetric Acoustic Biofeedback Training in Patients with Central Scotoma

Cited by 21 publications

References 39 publications

Fixation Stability and Preferred Retinal Locus in Advanced Age-Related Macular Degeneration

Fixation Stability and Preferred Retinal Locus in Advanced Age-Related Macular Degeneration

Demand preferences for health management services in a population of older adults with visual impairment in China: a conjoint analysis

Table_1.DOCX

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