age-related maculopathy, drusen
Conditions
Interventions
The treatment group:an argon green laser(514nM) Approximately 100 laser spots of 0.1 seconds duration and 200um spot size to produce a barely visible lesion(55-100mW)(subthreshold intensity
the control group:The contralateral eye of the patients no laser treatment
Sponsors
Beijing Friendship Hospital, Capital Medical University
Eligibility
Sex/Gender
All
Age
50 Years to 80 Years
Inclusion criteria
Inclusion criteria: Each eye had more than 10 soft drusen (>125 microm). The both eyes of the best corrected visual acuity (BCVA) were 0.8 or better. The Fluorescein angiography test showed no choroidal neovascularization (CNV) and geographic atrophy.
Exclusion criteria
Exclusion criteria: The Patients with exudative macular degeneration in either eye, macular or retinal diseases that would interfere with vision such as central serous choroidopathy, optic atrophy, macular pucker, macular hole, retinal vascular disease such as diabetic retinopathy and retinal vein occlusion, active uveitis, other sight-threatening retinopathies, or other retinal degeneration in either eye were excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the best corrected visual acuity (BCVA);drusen numbe; | — |
Secondary
| Measure | Time frame |
|---|---|
| function of macula;function of macula;Light sensitivit; | — |
Countries
China
Contacts
Public ContactHuang Ying-xiang
Outcome results
None listed