Changes in falling risk depending on induced axis directions of astigmatism on static posture

Kim, Sangjin; Moon, Byeong-Yeon; Cho, Hyun Gug

doi:10.1589/jpts.27.1971

Cited by 11 publications

(10 citation statements)

References 27 publications

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“…Moreover, Luna et al demonstrated that the Journal of Ophthalmology differences in lower and upper visual field loss in patients with glaucoma did not constitute balance functions differences [27]. On the other hand, refraction disorders such as uncorrected astigmatism and conditions affecting visual acuity, visual field, and contrast sensitivity like cataract also affect postural stability [28,29]. In our study, we thought that improved viral field and the directly associated improvements increased postural stability and could improve quality of life.…”

Section: Discussionmentioning

confidence: 55%

Evaluation of Visual Field and Balance Function Alterations in Patients Who Underwent Dermatochalasis Surgery

Akıdan¹,

Çoban

Erol

et al. 2020

Journal of Ophthalmology

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Purpose. To compare perioperative visual field (VF), balance functions (BF), and changes in the other ocular parameters in patients undergoing upper eyelid dermatochalasis (DC) surgery. Methods. One hundred and fifty-eight eyes of 79 patients who underwent DC surgery were included in the study. The VF, BF, intraocular pressure (IOP), pachymetry (PM), macular, and optic nerve measurements were recorded. Measurements were repeated at postoperative month 1. The preoperative and postoperative ocular measurements and the balance data were compared. Results. Nineteen of 79 (24.05%) patients were male and 60 of 79 (75.95%) were female, while the mean age of the patients was 58.65 ± 7.38 years. There were statistically significant differences in terms of VF and macular thickness between the preoperative and postoperative values. The improvements in mean defect, standard loss variance, and mean sensitivity values of global VF parameters in both eyes were statistically significant after surgery. Central macular thickness, mean macular thickness, and macular volume decreased significantly in all eyes after surgery (p<0.05). Conclusions. Although a marked improvement was observed in VF and peripheral vision after surgery, no significant change was found in BF parameters including primarily falling risk. The significant change in the macular parameters was only remarkable, and we think that the decrease was due to subtle vasospasm. There is a need for further comprehensive studies including especially patients older than 65 with a view to understanding the effect of DC surgery on BF.

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Section: Discussionmentioning

confidence: 55%

Evaluation of Visual Field and Balance Function Alterations in Patients Who Underwent Dermatochalasis Surgery

Akıdan¹,

Çoban

Erol

et al. 2020

Journal of Ophthalmology

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“…In a previous study 22 ) , visual blur induced by refractive errors was found to increase the FI. The FI value is especially higher in diagonal blur, which is induced by the incorrections of the oblique astigmatism more than the other blurs induced by the incorrections of the “with-the-rule” or the “against-the-rule” astigmatism while in stationary fixation in a static posture.…”

Section: Discussionmentioning

confidence: 69%

Smooth-pursuit eye movements without head movement disrupt the static body balance

2016

Self Cite

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Abstract. [Purpose] To investigate the changes of body balance in static posture in smooth-pursuit eye movements (SPEMs) without head movement. [Subjects and Methods] Forty subjects (24 males, 16 females) aged 23.24 ± 2.58 years participated. SPEMs were activated in three directions (horizontal, vertical, and diagonal movements); the target speed was set at three conditions (10°/s, 20°/s, and 30°/s); and the binocular visual field was limited to 50°. To compare the body balance changes, the general stability (ST) and the fall risk index (FI) were measured with TETRAX. The subjects wore a head-neck collar and stood on a balance plate for 32 s during each measurement in three directions. SPEMs were induced to each subject with nine target speeds and directions. All measured values were compared with those in stationary fixation.[Results] The ST and FI increased significantly in all SPEMs directions, with an increased target speed than that in stationary fixation. In the same condition of the target speed, the FI had the highest value relative to diagonal SPEMs.[Conclusion] SPEMs without head movement disrupt the stability of body balance in a static posture, and diagonal SPEMs may have a more negative effect in maintaining body balance than horizontal or vertical SPEMs.

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“…[18][19][20] Other than neurological problems, visual impairments can also affect postural stability and increase FI during posturographic examination. [23] A study investigating the effect of hemodialysis on balance found the FI score to be significantly higher after hemodialysis and they emphasized the risk of falling in all age groups of patients with renal insufficiency following hemodialysis. [24] On the other hand, Akdeniz et al [25] highlighted the importance of hypovitaminosis of vitamin D for risk of falling.…”

Section: Discussionmentioning

confidence: 99%

Posturographic examination of body balance in patients with Chiari type I malformation and correlation with the presence of syringomyelia and degree of cerebellar ectopia

Palamar¹

2018

Turk J Phys Med Rehab

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Objectives:We aimed to evaluate balance using the Tetrax Interactive Balance System (TIBS) in patients with Chiari type I malformation (CM-I) and to assess their fall risk with other clinical parameters. Patients and methods:This cross-sectional, prospective study was conducted at physical medicine and rehabilitation outpatient clinics and neurosurgery department of a university hospital between December 2013 and December 2014. The study included a total of 36 patients (31 females, 5 males; mean age 40.6±10.0 years; range, 18 to 60 years) with CM-I. Dynamic balance was assessed using the Berg Balance Scale (BBS), and posturographic examinations were performed using the TIBS. Results:The mean Fall Risk Index (FI) value was 42.4±29.8 and the mean BBS score was 55.5±1.5. The most common complaints were neck pain (94.4%), headache (88.9%), paresthesia (86.1%), fatigue (83.3%), and vertigo (80.6%). The mean tonsillar herniation below the foramen magnum was 8.7±3.8 (mm). Of the patients, 15 (42.85%) had syringomyelia. The degree of tonsillar ectopia was statistically significantly lower in patients with syringomyelia (p<0.05). The BBS scores were near identical among the patients with or without syringomyelia, although the FI values were lower in the patients with syringomyelia. Comparing cerebellar ectopia ≤9 mm versus >10 mm, the FI values were slightly higher in the patients with ectopia >10 mm, although there was no statistically significant difference in the FI or BBS values. Conclusion:Our study results suggest that CM-I can decrease the body balance stability and, thus, increase the fall risk. Evaluation of balance in patients with CM using TIBS static posturography is a simple and effective technique.

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Changes in falling risk depending on induced axis directions of astigmatism on static posture

Cited by 11 publications

References 27 publications

Evaluation of Visual Field and Balance Function Alterations in Patients Who Underwent Dermatochalasis Surgery

Evaluation of Visual Field and Balance Function Alterations in Patients Who Underwent Dermatochalasis Surgery

Smooth-pursuit eye movements without head movement disrupt the static body balance

Posturographic examination of body balance in patients with Chiari type I malformation and correlation with the presence of syringomyelia and degree of cerebellar ectopia

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