Applications of dynamic visual acuity test in clinical ophthalmology

Dynamic visual acuity test (DVAT) plays a key role in the assessment of vestibular function, the visual function of athletes, as well as various ocular diseases. As the visual pathways conducting dynamic and static signals are different, DVATs may have potential advantages over the traditional visual acuity tests commonly used, such as static visual acuity, contrast sensitivity, and static perimetry. Here, we provide a review of commonly applied DVATs and their several uses in clinical ophthalmology. These data indicate that the DVAT has its unique clinical significance in the evaluation of several ocular disorders.

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Faculty Opinions recommendation of A new dynamic visual acuity test to assess peripheral vestibular function.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.5430957.5389055 ◽

2010 ◽

Author(s):

Detlef Kömpf ◽

Christoph Helmchen ◽

Björn Machner

Keyword(s):

Visual Acuity ◽

Vestibular Function ◽

Dynamic Visual Acuity ◽

Visual Acuity Test ◽

Acuity Test

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A New Dynamic Visual Acuity Test to Assess Peripheral Vestibular Function

Archives of Otolaryngology - Head and Neck Surgery ◽

10.1001/archoto.2010.99 ◽

2010 ◽

Vol 136 (7) ◽

pp. 686 ◽

Cited By ~ 38

Author(s):

Domenic Vital ◽

Stefan C. A. Hegemann ◽

Dominik Straumann ◽

Oliver Bergamin ◽

Christopher J. Bockisch ◽

...

Keyword(s):

Visual Acuity ◽

Vestibular Function ◽

Dynamic Visual Acuity ◽

Visual Acuity Test ◽

Acuity Test

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Comparison of the Gaze Stabilization Test and the Dynamic Visual Acuity Test in Unilateral Vestibular Loss Patients and Controls

Otology & Neurotology ◽

10.1097/mao.0000000000000689 ◽

2015 ◽

Vol 36 (4) ◽

pp. 746-753 ◽

Cited By ~ 4

Author(s):

Courtney C. J. Voelker ◽

Amelia Lucisano ◽

Dorina Kallogjeri ◽

Belinda C. Sinks ◽

Joel A. Goebel

Keyword(s):

Visual Acuity ◽

Dynamic Visual Acuity ◽

Vestibular Loss ◽

Gaze Stabilization ◽

The Gaze ◽

Visual Acuity Test ◽

Acuity Test

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Comparison of the Visual Function Index to the Snellen Visual Acuity Test in Predicting Older Adult Self-Restricted Driving

Traffic Injury Prevention ◽

10.1080/15389588.2010.488494 ◽

2010 ◽

Vol 11 (5) ◽

pp. 503-507 ◽

Cited By ~ 7

Author(s):

Shahram Lotfipour ◽

Bhakti Harishchandra Patel ◽

Thomas Aaron Grotsky ◽

Craig L. Anderson ◽

Erin M. Carr ◽

...

Keyword(s):

Visual Acuity ◽

Older Adult ◽

Visual Function ◽

Function Index ◽

Snellen Visual Acuity ◽

Visual Acuity Test ◽

Acuity Test

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Diagnosis dan Penatalaksanaan Hipofungsi Vestibular Perifer Bilateral

Jurnal Kesehatan Andalas ◽

10.25077/jka.v7i0.849 ◽

2018 ◽

Vol 7 ◽

pp. 61

Author(s):

Ferdy Azman ◽

Yan Edward ◽

Rossy Rosalinda

Keyword(s):

Visual Acuity ◽

Dynamic Visual Acuity ◽

Snellen Chart ◽

Visual Acuity Test ◽

Acuity Test

Pendahuluan: Hipofungsi vestibuler perifer bilateral merupakan kasus yang jarang ditemui dan memiliki gejala gangguan keseimbangan yang menyebabkan gangguan penglihatan dan stabilitas postural. Etiologi penyakit ini sebagian besar idiopatik, selain itu disebabkan oleh zat ototoksik, penyakit autoimun, infeksi dan neoplasma yang melibatkan telinga dalam. Diagnosa ditegakkan berdasarkan gejala klinis, pemeriksaan keseimbangan sederhana dan tes khusus seperti dynamic visual acuity test (DVA), Rotatory Chair dan elektronistagmografi (ENG) pada tes kalori sebagai standar baku. Tatalaksana hipofungsi vestibuler perifer bilateral terutama berupa terapi rehabilitasi vestibuler berupa terapi adaptasi, subtitusi dan kompensasi/ habituasi lebih dipilih jika dibandingkan dengan terapi farmakologis atau terapi bedah. Laporan Kasus: Seorang pasien usia 65 tahun datang dengan keluhan pusing berputar dan berkurangnya pendengaran. Pemeriksaan pendengaran menunjukkan hasil tuli sensorineural dan tes DVA menunjukkan adanya penurunan tiga baris huruf pada Snellen chart dan elektronistagmografi menunjukkan paresis kanal bilateral. Pasien didiagnosis dengan hipofungsi vestibuler perifer bilateral ec. suspek prebiastasis. Tatalaksana adalah dengan terapi rehabilitasi vestibuler dengan metode adaptasi. Simpulan: Hipofungsi vestibuler perifer bilateral merupakan kasus yang jarang ditemui, dapat dibedakan dengan pemeriksaan objektif spesifik yaitu elektronistagmografi. Terapi pilihan utama untuk penyakit ini adalah berupa terapi rehabilitasi vestibuler metode adaptasi, subtitusi dan habituasi.

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Ophthalmic Findings and Their Effect on Visual Function in Persons with Albinism in Southern Nigeria

Ophthalmology Research An International Journal ◽

10.9734/or/2019/v10i130095 ◽

2019 ◽

pp. 1-8

Author(s):

Ihunanya Ibanga ◽

Chinyere N. Pedro-Egbe ◽

Alfred A. Onua ◽

Bassey Fiebai

Keyword(s):

Visual Acuity ◽

Contrast Sensitivity ◽

Visual Function ◽

Low Vision ◽

Statistical Significance ◽

P Value ◽

Cross Sectional ◽

Ocular Disorders ◽

Southern Nigeria ◽

Study Participants

Aim: To determine the pattern of ocular disorders in persons with albinism and how they affect visual function. Methods: This was a descriptive cross-sectional study conducted over a five-month period on persons living with albinism in Southern Nigeria. The study participants were randomly selected during the monthly meetings of a support group known as The Albinism Foundation (TAF).Visual acuity and contrast sensitivity were assessed using the ETDRS visual acuity chart and Pelli Robson contrast sensitivity test chart. A comprehensive eye examination including dilated fundoscopy was also carried out to determine other ocular disorders. Data was analyzed using SPSS version 22 and statistical significance was set at a p-value ≤ 0.05. Results: A total of 116 PWA (232 eyes) were examined. There were 44 (37.9%) males and 72 (62.1%) females. The age of the study subjects ranged from 5 to 56 years. Most eyes were visually impaired for both distance (n=228; 98.3%) and near vision (n= 224; 96.6%). Contrast sensitivity in most eyes (n=138; 59.5%) was subnormal. With refraction and Low Vision Aid (LVA), there was significant improvement of the mean VA by 2-3 acuity lines and 6 acuity lines respectively (p=0.000). All the examined eyes had fundus hypo-pigmentation, 91.4% (n=212) had iris trans-illumination, 86.2% (n=200) had nystagmus, and 34.4% (n=80) had strabismus. Nystagmus, strabismus and iris trans-illumination significantly (p=0.00) reduced visual acuity and contrast sensitivity. Conclusion: Most study participants had reduced distance visual acuity and contrast sensitivity but with correction there was a significant improvement in vision. The presence of nystagmus, strabismus and iris trans-illumination were observed to contribute to the poor vision experienced by most persons living with albinism. Hence, early optical intervention and counselling is important in improving the quality of living of persons with albinism.

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