The low vision training for case with large central scotoma

DOI Web Site 1 References

Bibliographic Information

Other Title
  • 大きな中心暗点の症例に対するロービジョン訓練の試み

Description

<p>[Purpose] Use of intact peripheral visual field is very difficult for low vision patients with central scotoma. In current study, a case whose quality of life could be improved with a training of eccentric viewing and instruction of color discrimination is reported. </p><p>[Case] the patient is 27 years old male having a physical disability certificate Grade 2 with rod-cone dystrophy. His visual acuities are RV= (20cm/nd), LV= (0.01) with 30-50 degree central scotoma for both eyes.</p><p>[Methods] Instruction of home-based eye movement training was provided in our low vision clinic for him to understand his usable field of view and to utilize eccentric viewing. In addition, personal color card was provided in order to instruct how to differentiate colors that he often mistakenly recognized. He visited our clinic every two months for 15 months to be checked progress with the training.</p><p>[Results] He used only temporal visual field on right eye before the training. He started using temporal visual field on left eye also after the training which made him understand his visual field. Since he was able to switch from his left eye to right eye smoothly, his reading efficiency with closed circuit television (CCTV). Use of the personal color card made him differentiate colors that he often mistakenly recognized easier even with color recognition difficulty caused by cone dystrophy. </p><p>[Conclusions] The results indicated that awareness of useful visual field, training of eccentric viewing, and instruction with a color card can improve visual efficiency in daily life for a patient with severe visual impairment.</p>

Journal

References(1)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top