Results 1 to 10 of about 10,023 (272)

Convergence insufficiency and accommodative insufficiency in children [PDF]

BMC Ophthalmology, 2019
Purpose Convergence and accommodative insufficiency represent the main cause of complaints during close visual work and can reduce visual performance and comfort.
Amélia F. Nunes, Pedro M. L. Monteiro, Francisco B. P. Ferreira, António S. Nunes   +3 more
doaj   +6 more sources

Home vision therapy and prism prescription in presbyopic persons with convergence insufficiency: study protocol for a randomized controlled trial [PDF]

BMC Ophthalmology
Background Convergence insufficiency is a common issue in the field of binocular vision. Various treatment options have been suggested for managing this condition, but their efficacy in individuals with presbyopia remains unclear.
Saeid Abdi, Haleh Kangari, Saeed Rahmani, Alireza Akbarzadeh Baghban, Zahra Kamary Rad   +4 more
doaj   +4 more sources

Convergence insufficiency

Kerala Journal of Ophthalmology, 2016
Convergence insufficiency is a common disorder of binocular vision in children and young adults. Common symptoms include eyestrain, headache, blurred vision, double vision, etc., Diagnosis of the condition involves a battery of tests for assessment of ...
Sanitha Sathyan, N F Beena, Dhanyasree Nair, Angel M Varughese   +3 more
doaj   +2 more sources

Virtual reality-based vision therapy versus OBVAT in the treatment of convergence insufficiency, accommodative dysfunction: a pilot randomized controlled trial [PDF]

BMC Ophthalmology, 2022
Background Virtual reality is being increasingly applied in vision therapy. However, the differences in effectiveness, optimal treatment cycle, and prognosis between virtual reality-based vision therapy and traditional therapies remain unknown.
Shijin Li, Angcang Tang, Bi Yang, Jianglan Wang, Longqian Liu   +4 more
doaj   +2 more sources

Convergence Insufficiency

Jurnal Kesehatan Andalas, 2018
Convergence Insufficiency digambarkan sebagai ketidakmampuan untuk mempertahankan konvergensi pada suatu objek ketika mata bergerak dari melihat jauh ke dekat, etiologynya belum jelas namun sering dikaitkan dengan kesulitan berakomodasi. Gejala CI paling
Adil Adil, Julita Julita
doaj   +3 more sources

Is the convergence insufficiency symptom survey applicable to elderly individuals? [PDF]

BMC Ophthalmology
Background The psychometric properties of the Convergence Insufficiency Symptom Survey (CISS) have been previously determined across the younger adult population.
Saeid Abdi, Haleh Kangari, Saeed Rahmani, Alireza Akbarzadeh Baghban, Zahra Kamary Rad   +4 more
doaj   +2 more sources

Prevalence and diagnostic signs of convergence insufficiency among schoolchildren in Kaohsiung, Taiwan: a cross-sectional study [PDF]

BMC Ophthalmology
Background Despite extensive global research on convergence insufficiency (CI), school-based epidemiological data in Taiwan remain scarce. This study provides the first school-based estimate of CI prevalence and diagnostic characteristics among ...
Shuan-Yu Huang, Yung-Chi Chuang, Shang-Min Yeh, Yun-Wei Chiang, Chi-Hung Lee, Chie-Tong Kuo, Che-Hun Liao, Min-Wei Huang, Chao-Ying Pan, Joh-Jong Huang   +9 more
doaj   +2 more sources

An unusual presentation of convergence insufficiency in a patient with Parkinson's disease stimulated by deep brain stimulation [PDF]

American Journal of Ophthalmology Case Reports, 2022
Purpose: To report convergence insufficiency in a patient with Parkinson's’ disease stimulated by turning on the deep brain stimulator. Observations: 72-year-old male with Parkinson's disease and hypertension presenting for the evaluation of blurry ...
Rayan Abou Khzam, Nahia Dib El Jalbout, Roland Seif, Ama Sadaka   +3 more
doaj   +2 more sources

Convergence Insufficiency/Divergence Insufficiency Convergence Excess/Divergence Excess: Some Facts and Fictions [PDF]

Case Reports in Ophthalmological Medicine, 2015
Great discrepancies are often encountered between the distance fixation and the near-fixation esodeviations and exodeviations. They are all attributed to either anomalies of the AC/A ratio or anomalies of the fusional convergence or divergence amplitudes.
Edward Khawam, Bachir Abiad, Alaa Boughannam, Joanna Saade, Ramzi Alameddine   +4 more
doaj   +3 more sources

Diagnostic values of questionnaires of Convergence Insufficiency Symptom Survey and College of Optometrists Vision Development Quality of Life in the screening of convergence insufficiency [PDF]

International Journal of Ophthalmology
AIM: To compare and analyse the diagnostic efficacy of the College of Optometrists Vision Development Quality of Life Questionnaire (COVD-QOL) and the Convergence Insufficiency Symptom Survey (CISS) in detecting convergence insufficiency and to compare ...
Ling Xiong, Qian Chen, Ye Wu
doaj   +2 more sources