Myopia
Conditions
Interventions
Observational group:maximum: 201 observational study (sample size is determined by the number of paritipants who can complete the trial IERP2007-017)
Sponsors
Zhongshan Ophthalmic Center
Eligibility
Sex/Gender
All
Age
8 Years to 18 Years
Inclusion criteria
Inclusion criteria: (Visit 1) Subjects enrolled in the trial must: 1. Have completed the 12-month visit of IERP2007-017; 2. Give informed consents, and have a parent or guardian who is able to read and comprehend Mandarin and who gives informed consent as demonstrated by signing a record of Informed Consent by parent / guardian, and the subject if able to give their own consent; 3. With "normal" ocular health tests.(Subsequent visits) Subjects invited to attend 6-monthly reviews following the initial visit must: Have only worn single vision spectacles as their form of visual correction since the 12-month visit of IERP2007-017
Exclusion criteria
Exclusion criteria: (Visit 1) Subjects enrolled in the trial must NOT : 1. Have acquired an allergy to, or intolerance to tropicamide or topical anaesthetics; 2. Be currently enrolled in another clinical trial (Subsequent visits) Subjects invited to attend 6-monthly reviews following the initial visit must NOT: 1. Have acquired an allergy to, or intolerance to tropicamide or topical anaesthetics; 2. Have had eye surgery since the IERP2007-017 12-month visit; 3. Have had any ocular injury or condition (including keratoconus and herpes keratitis) of the cornea, conjunctiva or eyelids since the IERP2007-017 12-month visit; 4. Have worn bifocal or progressive addition spectacles since the IERP2007-017 12-month visit; 5. Have worn orthokeratology contact lenses since the IERP2007-017 12-month visit; 6. Have current orthoptic treatment or vision training. The Investigator may, at his/her discretion, exclude anyone else if it is believed to be in the subject’s best interests.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in spherical equivalent refraction and axial length from baseline levels; | — |
Contacts
Public ContactXiang Chen
Outcome results
None listed