None listed
Conditions
Brief summary
This study aims to investigate the reliability of a new computer-based test to measure visual acuity in the peripheral visual field (the ability to see fine detail using side vision) and contrast sensitivity (the ability to discriminate between areas of differing brightness). We hypothesise that peripheral visual function - both visual acuity and conatrst sensitivity can be reliably measured using a computer-based test.
Interventions
Measurement of peripheral visual acuity and central and peripheral contrast sensitivity using a new computer-based test. Peripheral measures will be made at a viewing angle of 30 degrees in both nasal and temporal visual fields. Measures will be made on three separate days, consecutive if possible, to assess repeatability,
Sponsors
Institute for Eye Research
Study design
Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Diagnosis
Eligibility
Sex/Gender
All
Age
6 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
1) be between 6 and 40 years of age. 2) have ocular health findings considered to be “normal”. 3) have central vision correctable to at least 6/9 (20/30) or better in each eye. 4) have emmetropia or myopia comprising spectacle or contact lens wearers.
Exclusion criteria
1) have had intraocular eye surgery. 2) have undergone corneal surgery. 3) have had extraocular surgery within 12 weeks immediately prior to enrolment for this trial. 4) be undergoing orthokeratology, or had orthokeratology within 3 weeks immediately prior to enrolment for this trial. 5) have any ocular injury or condition (including keratoconus and herpes keratitis) of the cornea, conjunctiva or eyelids. 6) have strabismus or amblyopia. 7) have any disorder of the retina or visual pathways.
Outcome results
None listed