What do the numbers on my glasses prescription mean?
5 min read
OD, OS, sphere, cylinder, axis, and add. A plain-language guide to reading your own prescription, and why a bigger number does not mean worse eyes.
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Eye care resources
Clear answers about your vision and eye health.
Practical guides on eye exams, dry-eye treatment, diagnostic testing, contact lenses, eyewear, and the eye-health concerns patients ask about most.
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Children's eye care: signs a child may need an exam
5 min read
Children rarely describe blurry vision or eye strain. The signs parents and teachers notice, what happens at a pediatric exam, and why early care supports learning.
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Why do new glasses sometimes feel strange at first?
4 min read
Some adjustment is normal, especially with a new prescription or a first pair of progressives. What is expected, how long it should take, and when to bring them back.
Read moreWhat does eye pressure mean, and does high pressure mean glaucoma?
4 min read
High eye pressure is a risk factor, not a diagnosis. Many people with elevated pressure never develop glaucoma, and some develop it at normal pressure. What the number does and does not tell us.
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Why diabetic eye exams matter, even when your vision feels normal
5 min read
Diabetes can affect retinal blood vessels long before vision changes. What a diabetic eye exam looks for, how often to be checked, and how imaging tracks subtle changes.
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Flashes and floaters: when should you call an eye doctor?
4 min read
Occasional floaters are common. A sudden increase, flashes of light, or a shadow in your side vision should be examined promptly. How to tell the difference.
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