1. http://www.healio.com/optometry/practice-management/news/print/primary-care-optometry-news/%7Bbd87ff3e-95f2-4ce0-953c-3bcc1b8d6f7c%7D/optical-dispensing-21-steps-to-the-21st-century
2. http://cape-eye.co.za/capeeyelaser/?gclid=CP_miePozMwCFQccGwodTUkIjg
3. http://www.healio.com/ophthalmology
https://www.youtube.com/watch?v=mEY5eYT6piI