None listed
Conditions
Brief summary
This study aims to determine the repeatability of two investigational instruments ( the Lenstar LS 900 and the Triton Swept-source OCT). The instruments are used in optometric research to assess the length of the eye and the thickness of the vascular layer of the eye ( the choroid). To achieve this we wish to take measurements using the instruments over two separate days. The study sample will include a minimum of 15 participants to up to 40 participants with or without refractive errors, we wish to assess the repeatability of the instruments by taking two sets of measurements on two different days.
Interventions
This is a cross sectional and observational pilot study. The study sample will include participants with or without any refractive errors. The central and peripheral eye length and the thickness of the choroid will be analysed using the Lenstar LS 900 and the Triton Swept source OCT, respectively. The agreement between the readings obtained by both the instruments in two separate visits will be studied. The amount of time between visits will be between 1 to 40 days. The time between the visits
This is a cross sectional and observational pilot study. The study sample will include participants with or without any refractive errors. The central and peripheral eye length and the thickness of the choroid will be analysed using the Lenstar LS 900 and the Triton Swept source OCT, respectively. The agreement between the readings obtained by both the instruments in two separate visits will be studied. The amount of time between visits will be between 1 to 40 days. The time between the visits will be determined based on the scheduling availability of the participant and the scheduling availability of equipment.
Sponsors
Brien Holden Vision Institute
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
• aged 18 years and over; • Able to provide informed consent; • either has a refractive error of the eye (a condition that causes blur for either distance or near) or no refractive error; • have normal ocular health ; • have good vision with or without corrective devices such as spectacles; and willing to comply with clinical trial visit schedule as directed by the investigator
Exclusion criteria
• Less than 18 years of age; • have history of a systemic health problem such as diabetes, hypertension, cardiac problem etc or an eye health problem; • had any eye surgery or used orthokeratology lenses
Outcome results
None listed