Acute Accommodative and Convergence Insufficiency

Mazow, Malcolm L.; Musgrove, Kathryn; Finkelman, Sandra

doi:10.1080/0065955x.1991.11981864

Cited by 16 publications

(30 citation statements)

References 10 publications

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“…A significant correlation between near point of convergence and near point of accommodation was also found. Mazow et al showed that 24/26 (92,3%) young patients with accommodative insufficiency and convergence insufficiency became symptom free after 3 months treatment by convergence exercises and plus lenses for near work [21]. Treatment of accommodative insufficiency with reading glasses could eliminate asthenopic symptoms as recommended in several studies.…”

Section: Discussionmentioning

confidence: 97%

Asthenopia in Schoolchildren, Orthoptic and Ophthalmological Findings and Treatment

Abdi

Rydberg

2005

Doc Ophthalmol

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The aim of this study was to describe the orthoptic and ophthalmological findings in schoolchildren with asthenopia, to correlate them with asthenopic symptoms and to evaluate the effect of treatment. One hundred and twenty schoolchildren, aged 6-16 years, were included in the study. They were all referred by school nurses, for asthenopic symptoms. An orthoptic and ophthalmological assessment was performed. The main diagnoses were accommodative insufficiency, convergence insufficiency, refractive errors, and latent strabismus. Reading glasses could help 98% of the schoolchildren with reduced accommodation, and 94% of the children with refractive errors and heterophorias were helped with appropriate spherical, cylindrical and prism correction. Convergence exercise reduced the symptoms in all patients with convergence insufficiency. Ninety-three percent of all 120 schoolchildren were symptom free 3-6 month after treatment had started. By an orthoptic and ophthalmological examination abnormalities in schoolchildren with asthenopia related to visual problems can be identified. Most of the children were relieved from their symptoms by giving adequate glasses, convergence exercises and surgery.

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Section: Discussionmentioning

confidence: 97%

Asthenopia in Schoolchildren, Orthoptic and Ophthalmological Findings and Treatment

Abdi

Rydberg

2005

Doc Ophthalmol

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“…Improved accommodation and faster reading were seen as positive. The 4 Positive relative vergence measured with base-out prism (to blur) 5 Negative relative vergence measured with base-in prism (to blur) 6 Subjects with accommodative insufficiency 7 Subjects with accommodative insufficiency not treated at first visit analysis could not reveal any significant correlation between the two variables. Because of the dissimilar changes in the reading eye movements to the accommodative treatment, we will present the overall results from the reading analysis and three case reports to describe some of the individual findings in the recordings, which changed with accommodative treatment.…”

Section: Reading Eye Movementsmentioning

confidence: 96%

“…The inability to concentrate for long periods during near visual work may create frustration, which might impede the learning process. 5 Asthenopia associated with accommodative anomalies and convergence insufficiency (CI) can be reduced in most patients by accommodative and convergence training.…”

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confidence: 99%

The influence of accommodative insufficiency on reading

Abdi

Brautaset

Rydberg

et al. 2007

Clinical and Experimental Optometry

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Background:It is not known how accommodative insufficiency influences reading performance. Methods: Reading eye movements were recorded before and after treatment for accommodative insufficiency in 12 school children (eight to 16 years). During the eight-week treatment period all subjects wore a +1.00 D addition when reading. Results: Large variations in reading patterns were found. Despite successful accommodative treatment (p < 0.001), no correlation was found to suggest improved reading velocity.

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“…Visual therapy involves purposeful and controlled manipulations of target blur, disparity and proximity, with the aim of normalizing the accommodative system, the vergence system, and mutual interactions (Griffin & Grisham, 1995;Rutstein & Daum, 1998). The two most important vision therapy regimes for AI are plus lens reading additions (PLRA) and orthoptic exercises such as spherical flippers (Daum, 1983b;Mazow et al, 1989;Rutstein & Daum, 1998), however, the two regimes of therapy are fundamentally different. PLRA is a relatively passive mode of therapy in which the accommodative system is given a "helping hand" in getting a clear retinal image.…”

Section: Introductionmentioning

confidence: 98%