Common new-glasses problems
Common complaints include dizziness, swim effect, one side feeling blurry, near vision problems, heavy lenses, sore nose pads or trouble adapting to progressives.
Ashfield NSW local optometrist
Glasses Troubleshooting Guide
New glasses can feel wrong because of prescription change, lens design, frame fit, lens measurements, progressive lens adaptation, coating issues, frame tilt or lens thickness. A fitting and prescription history check can usually narrow the cause.
Glasses troubleshooting guide at iFocus Optometrists
Learn why new glasses may feel dizzy, blurry, distorted, heavy or uncomfortable and when to ask for a glasses check.
- Dizziness or distortion
- Progressive lens adaptation
- Lens thickness and frame fit
- Adjustments and prescription checks
Reviewed by: Dr Shirley Wang, B.Optom UNSW
Qualifications: Bachelor of Optometry, University of New South Wales
Languages: English, Mandarin Chinese, Cantonese Chinese
Last medically reviewed: June 2026
What to bring
Bring the new glasses, old glasses, prescription details and notes about when the problem happens, such as driving, screens, stairs or reading.
Why measurements matter
Lens centration, fitting height, frame tilt and vertex distance can affect comfort, especially with multifocal, progressive or stronger prescriptions.
Common questions
How long should new glasses take to adjust?
Some adaptation is common, especially with larger prescription changes or progressive lenses, but persistent blur, dizziness or discomfort should be checked.
Can frame choice affect lens thickness?
Yes. Frame size and shape can strongly affect lens edge thickness, especially for stronger prescriptions.
Can iFocus adjust or repair glasses?
Yes. iFocus Optometrists can help with many frame adjustments, repairs, cleaning and express glasses services where suitable.