COMPARABILITY OF OPHTHALMIC DIAGNOSES BY CLINICAL AND READING CENTER EXAMINERS IN THE VISUAL ACUITY IMPAIRMENT SURVEY PILOT STUDY

1986 ◽  
Vol 124 (6) ◽  
pp. 994-1003 ◽  
Author(s):  
ROBERT D. SPERDUTO ◽  
RITA HILLER ◽  
MARVIN J. PODGOR ◽  
PAUL PALMBERG ◽  
FREDERICK L FERRIS ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Pilot Study ◽  
Reading Center

scholarly journals Characterization of Visual Acuity and Contrast Sensitivity using Head-Mounted Displays in a Virtual Environment: A Pilot Study

2019 ◽  
Vol 63 (1) ◽  
pp. 547-551
Author(s):  
David Sproule ◽  
Rosemarie Figueroa Jacinto ◽  
Steve Rundell ◽  
Jacob Williams ◽  
Sam Perlmutter ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Virtual Reality ◽  
Pilot Study ◽  
Contrast Sensitivity ◽  
Virtual Environment ◽  
Real World ◽  
Appropriate Use ◽  
Head Mounted Displays ◽  
Visualization Tools

Virtual reality (VR) and personal head-mounted displays (HMDs) can be a viable tool for the presentation of scientifically accurate and valid demonstrative data in the courtroom. However, the capabilities and limitations of the technology need to be fully characterized. The current pilot study evaluated visual acuity and contrast sensitivity using two commercially available HMDs (Oculus Rift and HTC Vive Pro). Preliminary findings indicated that visual acuity and contrast sensitivity experienced in VR may be less than what is experienced in real-world scenarios. The current pilot study provides a quantitative approach for characterizing the limitations of VR with respect to visual acuity and contrast sensitivity, and provides recommendations for the appropriate use of this technology when performing forensic investigations and developing visualization tools.

scholarly journals Lessons from the Visual Acuity Impairment Survey pilot study.

1986 ◽  
Vol 76 (2) ◽  
pp. 160-165 ◽  
Author(s):  
F Ederer ◽  
D E Krueger ◽  
R L Mowery ◽  
J Connett ◽  
D Wentworth
Keyword(s):  
Visual Acuity ◽  
Pilot Study

scholarly journals Visual Outcomes of Adding Erythropoietin to Methylprednisolone for Treatment of Retrobulbar Optic Neuritis

2019 ◽  
Author(s):  
Mostafa Soltan Sanjari ◽  
Farzad Pakdel ◽  
Fatemeh Moosavi ◽  
Niloofar Pirmarzdashti ◽  
Marzieh Nojomi ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Pilot Study ◽  
Optic Neuritis ◽  
Visual Outcome ◽  
Primary Outcome Measure ◽  
Recombinant Erythropoietin ◽  
Human Recombinant Erythropoietin ◽  
Retrobulbar Optic Neuritis ◽  
Group 2 ◽  
Group 1

Purpose: To compare the short-term visual function results and safety of erythropoietin as an add-on to the standard corticosteroid therapy in retrobulbar optic neuritis (RON). Methods: In this prospective pilot study, adult patients with isolated RON with less than 10 days of onset were enrolled. Patients were consecutively assigned to standard intravenous methylprednisolone treatment either in combination with intravenous erythropoietin (20,000 units/day for three days) (group-1) or alone (group-2). Primary outcome measure was best-corrected visual acuity (BCVA), which was assessed up to 120 days from the day the treatment was begun. Systemic evaluations were performed during and after treatment. Results: Sixty-two patients with RON (mean age = 26.6 ± 5.77 years; range = 18–40 years) were enrolled into the study (group-1, n = 35; group-2, n = 27). BCVA three months after the treatment was 0.19 ± 0.55 logMAR and 0.11 ± 0.32 logMAR in group-1 and group-2, respectively (95% CI: –0.61–0.16; P = 0.62). Change in BCVA after three months was 2.84 ± 3.49 logMAR in group-1 and 2.46 ± 1.40 logMAR in group-2 (95% CI: –0.93–1.91; P = 0.57). Pace of recovery was not significantly different between the groups. No complications were detected among patients. Conclusion: Intravenous erythropoietin as an add-on did not significantly improve the visual outcome in terms of visual acuity, visual field, and contrast sensitivity compared to traditional intravenous corticosteroid. This pilot study supports the safety profile of intravenous human recombinant erythropoietin, and it may help formulate future investigations with a larger sample size.

scholarly journals Correlation between higher-order aberrations and visual acuity recovery (CoHORT) after spectacles treatment for pediatric refractive amblyopia: A pilot study using iDesign measurement

PLoS ONE ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. e0228922
Author(s):  
Chun-Fu Liu ◽  
Chung-Hsin Tseng ◽  
Chung-Ying Huang ◽  
Chi-Chin Sun ◽  
Meng-Ling Yang ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Pilot Study ◽  
Higher Order ◽  
Higher Order Aberrations

scholarly journals Patient-Perceived Benefit of Treatment in Polypoidal Choroidal Vasculopathy: A Pilot Study

2020 ◽  
Vol 17 (17) ◽  
pp. 6378
Author(s):  
Rituparna Ghoshal ◽  
Sharanjeet Sharanjeet-Kaur ◽  
Norliza Mohamad Fadzil ◽  
Somnath Ghosh ◽  
Nor Fariza Ngah ◽  
...  
Keyword(s):  
Mental Health ◽  
Visual Acuity ◽  
Pilot Study ◽  
Polypoidal Choroidal Vasculopathy ◽  
Reading Speed ◽  
Age Related Macular Degeneration ◽  
Repeated Treatment ◽  
Age Related ◽  
Visual Function Questionnaire ◽  
Choroidal Vasculopathy

Polypoidal choroidal vasculopathy (PCV), a subtype of neovascular age-related macular degeneration, requires repeated treatment. The objective of this pilot study was to evaluate and compare vision-targeted quality of life (QOL) at baseline and after 6 months of treatment in patients with PCV. Naive PCV patients were recruited. Visual functions assessed were distance visual acuity (DVA), near visual acuity (NVA), contrast sensitivity (CS), reading speed (RS), and QOL at baseline and after 6 months of treatment. Thirty patients (average age of 67.62 ± 8.05 years) revealed mean DVA and NVA improvements of 0.24 logMAR and 0.30 logMAR, respectively. Mean CS and RS improved by 0.39 log contrast and 25.58 words per minute, respectively. The National Eye Institute Visual Function Questionnaire 25 (NEI-VFQ-25) composite score significantly increased from a baseline of 66.73 ± 13.74 to 73.54 ± 14.26. Twenty-eight of the patients showed overall improvement in QOL score by 5 units or more or remained stable. Subscales of NEI-VFQ-25 significantly improved, with general vision, mental health, and role difficulties improving by 10 or more units. The present pilot study reports a significant improvement of QOL in PCV patients after 6 months of treatment, with mental health, role difficulties, social functioning, and distance vision activities being the most improved subscales.

scholarly journals Low contrast visual acuity testing is associated with cognitive performance in multiple sclerosis: a cross-sectional pilot study

BMC Neurology ◽  
2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Laura Wieder ◽  
Gunnar Gäde ◽  
Luisa M Pech ◽  
Hanna Zimmermann ◽  
Klaus-Dieter Wernecke ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Visual Acuity ◽  
Pilot Study ◽  
Cognitive Performance ◽  
Cross Sectional ◽  
Low Contrast ◽  
Visual Acuity Testing
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