Comparison of surgical results of responders and non‐responders to the prism adaptation test in intermittent exotropia

Ohtsuki, Hiroshi; Hasebe, Shinji; Okano, Masaki; Furuse, Takashi

doi:10.1111/j.1600-0420.1997.tb00143.x

Cited by 29 publications

(25 citation statements)

References 9 publications

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“…4,6,8 Thus, it prevents the risk of under-correction and also promotes the development of binocular sensory vision. 9,10 In our study, 13 of 18 patients (72.2 per cent) on whom PAT was conducted, showed an increment of five or more prism dioptres in the angle of deviation from six metres compared to the initial angle measured by prism. Consequently, surgical treatment for these patients consisted of larger muscle resection and recession.…”

Section: Discussionmentioning

confidence: 45%

“…Many studies indicate that preoperative prism correction allows a relatively accurate determination of the amount of the prism for surgery . Thus, it prevents the risk of under‐correction and also promotes the development of binocular sensory vision . In our study, 13 of 18 patients (72.2 per cent) on whom PAT was conducted, showed an increment of five or more prism dioptres in the angle of deviation from six metres compared to the initial angle measured by prism.…”

Section: Discussionmentioning

confidence: 50%

“…Ohtsuki and colleagues concluded that patients who show marked response to prism correction had a tendency to have a better outcome with regard to the single binocular vision examined with Bagolini lens test during a longer follow‐up (three years). In contrast, Dadeya, Kamlesh and Nanival observed similar sensory success for PAT‐positive and PAT‐negative patients.…”

Section: Discussionmentioning

confidence: 99%

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The impact of prism adaptation test on surgical outcomes in patients with primary exotropia

Yilmaz

Köse

Yılmaz

et al. 2015

Clinical and Experimental Optometry

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Background We aimed to determine the impact of the preoperative prism adaptation test (PAT) on surgical outcomes in patients with primary exotropia. Methods Thirty‐eight consecutive patients with primary exotropia were enrolled. Pre‐operative PAT was performed in 18 randomly selected patients (Group 1). Surgery was based on the angle of deviation at distance measured after PAT. The remaining 20 patients in whom PAT was not performed comprised Group 2. Surgery was based on the angle of deviation at distance in these patients. Surgical success was defined as ocular alignment within eight prism dioptres (PD) of orthophoria. Results Satisfactory motor alignment (± 8 PD) was achieved in 16 Group 1 patients (88.9 per cent) and 16 Group 2 patients (80 per cent) one year after surgery (p = 0.6; chi‐square test). There were no statistically significant differences in demographic parameters, pre‐operative and post‐operative angle of deviation between the two groups (p > 0.05; Mann‐Whitney U and chi‐square tests). Nine patients in Group 1 (50 per cent) and two patients in Group 2 (10 per cent) had increased binocular vision one year post‐operatively. A statistically significant difference was determined in terms of change in binocular single vision between the two groups (p = 0.01; chi‐square test). Conclusion Although the prism adaptation test did not lead to a significant increment in motor success, it may be helpful in achieving a more favourable functional surgical outcome in patients with primary exotropia.

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Section: Discussionmentioning

confidence: 45%

Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 99%

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The impact of prism adaptation test on surgical outcomes in patients with primary exotropia

Yilmaz

Köse

Yılmaz

et al. 2015

Clinical and Experimental Optometry

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“…It has been suggested that the development of controlled force exertion ability is affected by acquired factors and that laterality becomes more marked over time [15]. Because the dominant hand is more frequently used in daily life and is more exposed to various stimulations, it was predicted that the dominant hand would perform better in matching demanded forces owing to their experiences.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of Force Exertion in Response to Demanded Forces Based on Subjective Information and Laterality

Noguchi

Demura²,

Omoya³

2014

AJSSM

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The strength required for motor activities should be exerted effectively according to the type of activity and the load size. This study examined the relationship between the accuracy of handgrip exertion for demanded forces of 20%-80% of the maximal voluntary contraction (MVC) and laterality. Subjects were 100 healthy young males (mean age, 22.4 ± 2.8 years). After the handgrip MVC was measured, subjects attempted to exert a handgrip at demanded forces of 20, 40, 60, and 80% of the MVC. All tests were performed twice and with dominant and nondominant hands, and mean values were used for statistical analysis. Differences between demanded forces and exerted forces were converted into relative values based on each subject's MVC. Two-way repeated measures ANOVA showed significant interaction between demanded forces and laterality. In multiple comparison tests, smaller demanded forces were associated with larger errors only in the non-dominant hand. For demanded forces of 20% and 40% MVC errors were smaller for the dominant hand than for the non-dominant hand. The non-dominant hand is used less than the dominant hand in daily life and in sport activities. It is therefore not unexpected that a laterality-based difference in the accuracy of exerted force for each demanded force is found, and the accuracy of exerted force at low demanded forces was inferior for the non-dominant hand. In conclusion, there was a difference in the accuracy of exerted force for each demanded force for the non-dominant hand with a larger error at lower demanded forces. In particular, the accuracy of exerted force in response to demanded forces of 40% MVC or less was inferior in the non-dominant hand compared with that in the dominant hand. Laterality is therefore a significant factor in force response to lower demanded force values.

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“…Noguchi et al [6] reported that laterality is found in the Moving Beans with Tweezers test and the Purdue Pegboard test, which are used to evaluate dexterity, an element of coordination; their results indicated that the dominant hand is superior to the nondominant hand. Ohtsuki et al [7] found that laterality in grading ability becomes more pronounced with the influence of an acquired factor.…”

Section: Introductionmentioning

confidence: 99%

Effects of Repeated Training on Controlled Force Exertion and Retention in Dominant and Nondominant Hands

Kubota

Demura²,

Uchiyama³

et al. 2014

AJSSM

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This study aimed to examine the effects of repeated training on the controlled force exertion (CFE) test and retention in dominant and nondominant hands. The subjects were 10 young males (mean age, 21.8 ± 1.4 years). The CFE test was used as the repeated training task and performed 5 days per week over 3 weeks (a total of 15 times). The exertion value of the subjects' handgrip strengths was matched to constantly changing demand values for 40 s. Three trials were performed after one practice trial. The difference between the demand value and the grip exertion value was used as the evaluation parameter, referred to as the CFE error, and the mean of the second and third trials was used for analysis. The initial and final values for the dominant and nondominant hands and those taken one month after the repeated training task were used for analysis. A two-way analysis of variance revealed that the final CFE errors for both hands were significantly smaller than the initial CFE errors, and no significant difference was found between the dominant and nondominant hands in the final tests. In addition, after one month, the CFE errors for both hands were significantly smaller than the initial CFE errors and were significantly smaller in the dominant hand than in the nondominant hand. Repeated training in controlled force exertion improves CFE in both the dominant and nondominant hands, but the dominant and nondominant hands differ in retention of the effects.

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Comparison of surgical results of responders and non‐responders to the prism adaptation test in intermittent exotropia

Cited by 29 publications

References 9 publications

The impact of prism adaptation test on surgical outcomes in patients with primary exotropia

The impact of prism adaptation test on surgical outcomes in patients with primary exotropia

Accuracy of Force Exertion in Response to Demanded Forces Based on Subjective Information and Laterality

Effects of Repeated Training on Controlled Force Exertion and Retention in Dominant and Nondominant Hands

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