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Shuai L, Leilei Z, Wen W, Shu W, Gangsheng L, Yinglong L, Guoke Y, Xinrong C, Hong L, Rongfeng L. Binocular treatment in adult amblyopia is based on parvocellular or magnocellular pathway. Eur J Ophthalmol 2019; 30:658-667. [PMID: 31014078 DOI: 10.1177/1120672119841216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Amblyopia is speculated to be an untreatable disease in the patient, who is beyond the critical period of vision; however, currently, it is treatable in adults. PURPOSE This study aimed to elucidate whether the treatment is useful in both anisometropic amblyopia and strabismic amblyopia. In addition, the differences were detected between anisometropic amblyopia and strabismic amblyopia after the same perceptual treatment and whether the suppression in anisometropic amblyopia or strabismic amblyopia could be decreased before and after the treatment. METHODS A binocular perceptual learning was applied for the treatment, the suppression was measured, and the patients were followed up for 2 months after training. Anisometropic amblyopia and strabismic amblyopia groups were subjected to the assessment of stereo, visual acuity, contrast sensitivity, and suppression before and after the training. RESULTS After 6 weeks of "Diploma Gabor Orientation Coherence" training, in the anisometropic amblyopia group, the outcomes of visual acuity (t = 3.114, p = 0.026) and contrast sensitivity (t = 7.786, p = 0.001) were increased significantly. While in the strabismic amblyopia group, the outcomes of stereo (t = 2.987, p = 0.040) and contrast sensitivity (t = 3.638, p = 0.022) were increased significantly. CONCLUSION After Diploma Gabor Orientation Coherence training in the same frequency and in the same duration, the anisometropic amblyopia group got an improvement in visual acuity, but the strabismic amblyopia group got an improvement in stereo. As there are evidences to show that anisometropic amblyopia and strabismic amblyopia were injured in different pathways, we think the diverse results might come from the different pathway injury in anisometropic amblyopia and strabismic amblyopia.
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Affiliation(s)
- Liu Shuai
- Anhui Medical University, Hefei, China.,Department of Ophthalmology, The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Zou Leilei
- Fudan University, Shanghai, China.,Department of Ophthalmology, EENT Hospital Affiliate to Fudan University, Shanghai, China
| | - Wen Wen
- Fudan University, Shanghai, China.,Department of Ophthalmology, EENT Hospital Affiliate to Fudan University, Shanghai, China
| | - Wang Shu
- Fudan University, Shanghai, China.,Department of Ophthalmology, EENT Hospital Affiliate to Fudan University, Shanghai, China
| | - Liu Gangsheng
- Anhui Medical University, Hefei, China.,Department of Ophthalmology, Hefei First People's Hospital, Anhui, China
| | - Li Yinglong
- Anhui Medical University, Hefei, China.,Department of Ophthalmology, Hefei First People's Hospital, Anhui, China
| | - Yang Guoke
- Anhui Medical University, Hefei, China.,Department of Ophthalmology, Hefei First People's Hospital, Anhui, China
| | - Chang Xinrong
- Anhui Medical University, Hefei, China.,Department of Ophthalmology, Hefei First People's Hospital, Anhui, China
| | - Liu Hong
- Fudan University, Shanghai, China.,Department of Ophthalmology, EENT Hospital Affiliate to Fudan University, Shanghai, China
| | - Liao Rongfeng
- Anhui Medical University, Hefei, China.,Department of Ophthalmology, The First Affiliated Hospital of Anhui Medical University, Anhui, China
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Ghandi Dezfuli M, Akbarfahimi M, Nabavi SM, Hassani Mehraban A, Jafarzadehpur E. Can hand dexterity predict the disability status of patients with multiple sclerosis? Med J Islam Repub Iran 2015; 29:255. [PMID: 26793646 PMCID: PMC4715381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 03/16/2015] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND Multiple Sclerosis (MS) is the most common disabling neurological disease. Hand dysfunction is one of the main complaints of patients with MS. The present study aimed to compare hand dexterity of MS patients with low Expanded Disability Status Scale (EDSS) scores and healthy adults. It also sought to identify the predictors of disability status of patients with MS based on their manual dexterity and demographic characteristics. METHODS In this cross-sectional study, 60 (16 male/44 female) patients with MS and 60 (19 male/41 female) healthy people, who matched in terms of age and sex, were recruited. Their hand dexterity was evaluated by the Purdue Pegboard Test. The disability status of the MS group was determined by the Expanded Disability Status Scale. The data were analyzed using SPSS15. RESULTS The hand dexterity in MS group even with low EDSS score (1.5 ± 1.07) was weaker than control group. Moreover, the dexterity of dominant hand and alternating two hands coordination subtests of the PPT was a good discriminator between two groups (p<0.001). The results of linear regression analysis suggested dominant hand dexterity and disease duration as predictors of disability status that predict 60.5 per cent of the variation in EDSS scores in patients with MS (p<0.001). CONCLUSION Reduced dominant hand dexterity in patients with MS is a disabling factor. Further research is recommended to determine if early hand rehabilitation can reduce the severity of disability in Patients with MS.
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Affiliation(s)
- Masoumeh Ghandi Dezfuli
- 1 MSc of occupational therapy, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
| | - Malahat Akbarfahimi
- 2 Assistant professor, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran. ,(Corresponding author) Assistant professor, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
| | - Seyed Massood Nabavi
- 3 Associate Professor, Department of Neurology, School of Medicine, Shahed Medical University, Tehran, Iran.
| | - Afsoon Hassani Mehraban
- 4 Associate Professor, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
| | - Ebrahim Jafarzadehpur
- 5 Professor, Department of Optometry, Iran University of Medical Sciences, Tehran, Iran.
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