Visual Functions
Conditions
Brief summary
EyeSwift Pro assessment of visual function parameters as measured by psychophysics
Detailed description
The following assessments and procedures will be carried out in this trial: * Baseline assessments will include the following: age, gender, ethnicity, race, education, clinical ocular diagnosis, and general health and use of any concomitant medications. * Visual and ocular assessment will include unitary testing methods, using the EyeSwift Pro system and the reference method (if applicable).
Interventions
DEVICEEyeswift Pro
assessment of visual function parameters
Sponsors
NovaSight
Eligibility
Sex/Gender
ALL
Age
6 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* ≥4 years * Have visual acuity better than 6/60 * Diagnosed as having either Orthophoria or/and Heterophoria or/and Orthotropia or/and heterotopia (group A only) * Normal vision or visual impermeant (group C and E only) * Normal or deficient vergence (group D only) * Normal or deficient reading disabilities (group F only) * 8 years and older or third grade (group F only) * Subject in general good health and able, as per investigator decision, to comply with study visits and protocol procedures * Signed and dated informed consent form * Parent and participant understand and are willing to comply with
Exclusion criteria
* Anophthalmic * Photosensitive epilepsy or susceptible to epileptic seizures * Pre-existing concomitant pathology such as congenital cataracts or glaucoma (not including group E) * Severe developmental delay that would interfere with testing (in the opinion of the investigator). Subjects with mild speech delay or reading and/or learning disabilities are not excluded * Extraocular muscle (EOM) paralysis (groups A and B only) * Nystagmus * Any ocular pathology or anomalies which can interfere with eye-tracking * Any ocular pathology or anomalies (i.e., age-related macular degeneration (AMD), diabetic retinopathy etc.) (relevant for groups A-F, group E can include such anomalies)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| measurement by the EyeSwift®Pro-ESP100 | 1 day | Automated measurement of heterophoria and heterotropia and detection of a deviating eye in the primary eye position |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| measurement by the EyeSwift®Pro-ESP100 | 1 day | Automated measurement of dichoptic divergence and convergence |
Outcome results
None listed