Optometrist. Dr. John Poon is the Optometrist of choice for Victoria residents. His practice is located in Oak Bay at Purely Optometry, and it provides children, adult and senior eye exams, contact lens fittings, diabetic exams, glaucoma screening and more. This clinic boasts quality customer service from dedicated staff, affordable rates, a large parking lot adjacent to the building (via Trent St.) and a popular local eyewear business (Diamond Optical) right next door.