Cataract
Conditions
Keywords
Telemedicine
Brief summary
The incidence rate of postoperative capsular opacification (PCO) in children after cataract surgery is reported to be as high as 100%, while timely Nd: YAG laser posterior capsulotomy is effective to treat visual axis opacification (VAO) caused by PCO. Therefore, long-term follow-up, timely diagnosis and treatment is important to improve patient's outcome. The major and central part of lens is easy to be observed through a dilated pupil. Especially, opacification in the lens and/or lens capsule is distinctive showing as white on the black background. The characteristic features of the disease and advances in photographic technique with mobile phone make it possible for patients and/or their guardians to monitor the progress of cataract or PCO with mobile application in a self-help manner under non-clinical settings.
Detailed description
The incidence rate of postoperative capsular opacification (PCO) in children after cataract surgery is reported to be as high as 100%, while timely Nd: YAG laser posterior capsulotomy is effective to treat visual axis opacification (VAO) caused by PCO. Therefore, long-term follow-up, timely diagnosis and treatment is important to improve patient's outcome. The major and central part of lens is easy to be observed through a dilated pupil. Especially, opacification in the lens and/or lens capsule is distinctive showing as white on the black background. The characteristic features of the disease and advances in photographic technique with mobile phone make it possible for patients and/or their guardians to monitor the progress of cataract or PCO with mobile application in a self-help manner under non-clinical settings. In this way, patients and/or guardians could adjust the time of return to clinical follow-up visit accordingly. Furthermore, standardized and analyzed pictures could be sent to clinicians for remote diagnosis when necessary. The investigators developed a mobile phone application LenZOC. The investigators aimed to assess whether mobile phone application for parents of children with cataracts would improve their adherence with follow-up and increase rates of timely detection and management of treatable conditions such as posterior capsular opacification (PCO).
Interventions
DEVICELenZOC (mobile application)
The transparency of the visual axial at the anterior segment is observed through a dilated pupil. Image of the eye of a patient taken with LenZOC is calibrated with a standardized white and black bar adhered to the patient's eyelid. Calibrated images are dimmed as graysalegrayscale. The intensity and progress of visual axial opacification (VAO) is quantified as absolute area and relative area (calculated as: absolute area of VAO/ absolute area of dilated pupil).
Sponsors
Sun Yat-sen University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
No minimum to 18 Years
Healthy volunteers
No
Inclusion criteria
* Children after cataract surgery for more than 1 year without any postoperative complications * Without other ocular abnormality * Parents owned a smart mobile phone that meets the requirements for installation of the LenZOC * Written informed consents provided
Exclusion criteria
* Intraocular pressure \>21 mmHg * Pre-existing ocular diseases including but not restricted to: Glucoma Micro-cornea Micro-ophthalmic Diseases of post-segment that might lead to VAO
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Times of follow-ups for each participant | up to one year |
Secondary
| Measure | Time frame |
|---|---|
| Best corrected visual acuity | up to 24 weeks |
Countries
China
Outcome results
None listed