Development and clinical application of an optical mouse detection device for the treatment of amblyopia caused by congenital nystagmus, sway vision in acquired nystagmus, and reduction of diplopia in acquired strabismus

Development and clinical application of an optical mouse detection device for the treatment of amblyopia caused by congenital nystagmus, sway vision in acquired nystagmus, and reduction of diplopia in acquired strabismus - Development and clinical application of an optical mouse detection device for the treatment of amblyopia caused by congenital nystagmus, sway vision in acquired nystagmus, and reduction of diplopia in acquired strabismus

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000046924

Enrollment

Registered

2022-04-01

Start date

2022-04-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Congenital nystagmus, acquired nystagmus, strabismus

Interventions

Subjective Evaluation Questionnaire and Reading Time Measurement Using an Optical Mouse Detection System. An optical mouse detection system was applied to eyes with strabismus and nystagmus, and dist

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The subjects will be those who are undergoing treatment for strabismus and nystagmus at Kitasato University Hospital. In Stage 1, the subjects must be 20 years of age or older and present with strabismus or nystagmus. Patients must be aware of diplopia or agitation due to strabismus or nystagmus. Stage 2: Patients under the age of 9 years with nystagmus who have not shown improvement in visual function through training in the usual medical care. Each study will include 20 cases. Exclusion criteria will be as follows. Patient recruitment will be done directly to the patient in Stage 1, and directly to the child's parents in Stage 2.

Exclusion criteria

Exclusion criteria: Exclusion Criteria for Stage 1 Previous external eye surgery for strabismus or nystagmus Pregnant women who are at least 5 months old before the examination Exclusion criteria for stage 2 Previous or planned external eye surgery for strabismus or nystagmus Patients with corneal or retinal diseases other than nystagmus that cause poor vision. Patients with functional amblyopia, etc., who are expected to improve their visual function with visual function training within the scope of regular medical care.

Design outcomes

Primary

Measure	Time frame
An optical mouse detection system (self-made optical device) will be loaned to the participants, and they will be trained to wear it for 3 hours a day at home. Training will be conducted for 30 days, and the patient will be asked to visit the ophthalmology outpatient clinic after 30 days. After that, the training and ophthalmology outpatient visits will be repeated, and a 6-month study will be conducted to evaluate the visual function.	—

Measure

Time frame

An optical mouse detection system (self-made optical device) will be loaned to the participants, and they will be trained to wear it for 3 hours a day at home. Training will be conducted for 30 days, and the patient will be asked to visit the ophthalmology outpatient clinic after 30 days. After that, the training and ophthalmology outpatient visits will be repeated, and a 6-month study will be conducted to evaluate the visual function.

—

Countries

Japan

Contacts

Public ContactTakushi Kawamorita

Kitasato University School of Allied Health Sciences Depertment of Orthoptics and Visual Science

kawa2008@kitasato-u.ac.jp042-778-9662

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026