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This ring exists in two versions:
- Use when the telescope is in near vision only.
- When the astigmatism is weak.Version for corrective glass:1. In case of strong correction:
- The glass is fixed thanks to a double-sided sticker.
- Use to have an afocal vision.
- To correct significant astigmatism.
- In binocular vision.
2. In case of weak correction:
- Make a precal of 20 mm. (see LESA FRANCE)
- A template is provided for the probe.
|Public Price (Taxes Included)||22.30 €|