Vision-Boosting game trial for kids after rare eye surgery
NCT ID NCT07096622
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a web-based visual training program can improve vision in children aged 4-12 who had surgery for a rare lens dislocation condition called congenital ectopia lentis. Over 3 months, 82 children will use the training software for 30 minutes daily. Researchers will measure changes in eyesight and depth perception, aiming to find a safe, effective way to boost visual recovery after surgery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- visual perception training therapy software (HVT)
- What this could lead to
- If it works, this could provide a safe, home-based way to improve vision and depth perception in children after lens surgery.
- What could go wrong
- This is a small, early-stage trial with no blinding, so results may be influenced by placebo effects. The training requires daily effort for 3 months, and not all children may benefit.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 82 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Jun 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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4 to 12 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria 1. Aged 4-12 years, with no gender restriction; 2. Diagnosed with congenital ectopia lentis; 3. Underwent bilateral lensectomy combined with IOL scleral fixation, and within 1 month ± 1 week after the second-eye surgery; 4. Best-corrected visual acuity (BCVA) of unilateral or bilateral eyes is no worse than 20/200 but below the normal level for the corresponding age: for 4-year-old children, BCVA ≤ 20/40; for children aged 5 years and above, BCVA ≤ 20/30; 5. Written informed consent signed by the patient and their parents or legal guardians. Exclusion Criteria 1. History of ocular trauma or previous ocular surgery other than the study-related procedure; 2. Unable to cooperate with treatment, examinations, and follow-up assessments; 3. Complicated with recurrent lens dislocation, severe cataract (dense, axial, opacity diameter \>3 mm and affecting central vision), secondary glaucoma, corneal endothelial decompensation, retinal detachment, or other conditions requiring urgent surgical intervention; 4. Presence of diplopia in either eye; 5. Known history of neurological disorders (e.g., photosensitive epilepsy); 6. Participation in other clinical trials within the postoperative period that may affect the outcomes of the present study; 7. Use of topical or systemic medications that may cause visual impairment, or other vision therapies other than refractive correction in the past 3 months (e.g., atropine penalization, occlusion therapy, digital therapy, Bangerter filters, optical suppression, VR training, etc.).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Guangdong Provincial Clinical Research Center for Ocular Diseases, State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, Guangdong
RECRUITINGGuangzhou, Guangdong, 510060, China
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Qingyuan Hospital Affiliated to Guangzhou Medical University (Qingyuan People's Hospital)
NOT_YET_RECRUITINGQingyuan, Guangdong, 511500, China