If you’ve worn progressive glasses and felt something was “off,” the problem might not be your prescription. It might be how the lenses were positioned in your frame. At Jaipur Eye & Dental Hospital, we now use the ZEISS i.Terminal to make progressive lens fitting more precise than ever.
Why Progressive Glasses Need Precise Measurements
Progressive lenses have three vision zones: distance, intermediate, and near. Each zone is a narrow corridor, and your eye needs to look through exactly the right spot to get a clear image.
If the lens centre is even 1-2mm off from where it should be, you’ll notice blurring, dizziness, or a “swimming” sensation when you move your eyes. Studies show that poor centration is the leading cause of patient dissatisfaction with progressive lenses, affecting up to 20% of wearers (ZEISS Vision Care).
How Does ZEISS i.Terminal Improve the Fitting?
Traditional fitting uses a ruler and felt-tip pen to mark your pupils. It’s manual, and small errors are common. ZEISS i.Terminal replaces all of that with a digital measurement system.
It captures three key parameters in seconds:
- Pupillary distance (PD) — the exact distance between your pupils
- Fitting height — where your pupil sits vertically within the frame
- Pantoscopic tilt and wrap angle — how the frame tilts on your face
These measurements are sent directly to ZEISS for custom lens production. No manual transcription, no guesswork. The result is a lens made specifically for how you wear your frame.
Frequently Asked Questions
What is ZEISS i.Terminal and how does it help with progressive glasses?
ZEISS i.Terminal is a digital centration system that precisely measures how your frame sits on your face. It captures pupillary distance, fitting height, and tilt angle to ensure progressive lenses are positioned exactly where they need to be for clear, natural vision.
Why do progressive glasses feel uncomfortable for some people?
Discomfort usually comes from incorrect centration. If the fitting height or pupillary distance is off by even 1-2mm, you may experience dizziness, blurred zones, or nausea. Digital measurement tools like ZEISS i.Terminal eliminate manual errors and help your lenses perform as designed.
META: ZEISS i.Terminal at JEDH digitally measures your frame for precise progressive lens fitting — reducing dizziness and blurring by up to 20%. Book your consultation today.
