Low vision due to various diseases
Conditions
Interventions
Refractive media diseases:Visual perceptual training
Fundus diseases:Visual perceptual training
Optic neuropathy and brain diseases:Visual perceptual training
Normal person simulation group (Reading function test group):Measurement of reading function in normal subjects under simulated conditions
Normal person simulation group (Walking and search function test group):Measurement of walking and search functions in normal subjects under simulated conditions
Sponsors
Eye Hospital Affiliated to Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
6 Years to 100 Years
Inclusion criteria
Inclusion criteria: 1)Voluntarily participate the in study, understand the content of the study and sign the informed consent form; for minor subjects, the guardians need to give consent and sign the informed consent form. 2)Be able to cooperate in completing tests related to visual acuity/visual field/reading and daily behavior abilities, and be willing to complete follow - up according to the protocol. A. Inclusion criteria for the normal person simulation group (healthy volunteers): 3)Aged between 18 and 40 years old. 4)The best - corrected visual acuity of both eyes is =0.8, with no obvious anisometropia. B. Inclusion criteria for the low - vision patient group: 5)The target population is low - vision patients caused by different reasons: the best - corrected visual acuity of the better eye of both eyes is <0.3 and =0.05. 6)The causes of low vision include refractive media diseases, optic nerve diseases, macular/fundus diseases, cranial diseases, etc.
Exclusion criteria
Exclusion criteria: a) Unable to cooperate with clinical examination. b) Taking other medications that may affect vision.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Best corrected visual acuity;Contrast sensitivity;fixation flexibility;Light average sensitivity; | — |
Secondary
| Measure | Time frame |
|---|---|
| Patient's daily ability to perform test (including tasks such as reading, walking, searching, and facial recognition);Reading Speed;Max Reading Speed;Reading Acuity;Critical Print Size;Walking Collision Count;Walking Completion Time;Search Rate;Search Time; | — |
Countries
China
Contacts
Public ContactXiaoman,Li
Eye Hospital Affiliated to Wenzhou Medical University
Outcome results
None listed