Goodrich Optical

Steady Methodology

Goodrich Optical’s proprietary Steady Methodology is a technological breakthrough in free-form digital lenses.

Steady Methodology allows for the strict control of mean power resulting in progressive lenses with unparalleled levels of wearer satistaction.

Superior image stability for more comfortable vision

Goodrich Optical has developed new design tools with advanced mathematics that allow for the addition of Steady Methodology into every general-use Goodrich Optical progressive design.

Goodrich Optical’s patented Steady Methodology is a technological breakthrough in free-form, digital lenses. In addition to controlling for unwanted cylinder power, Steady Methodology addresses unwanted changes to mean power in the lateral areas of the lens.

This will enable Goodrich Optical to provide superior progressive lenses for all lifestyles and market segments. Endless Steady Progressive and Essential Steady Progressive lenses now include Steady Methodology.

Inspired by stability

Swim effect is a non-stable perception of the surroundings that causes discomfort, and reduces overall lens satisfaction, making adaptation more difficult. Despite advancements made in progressive lenses, patients still experience swim effect. Lenses designed with Steady Methodology provide wearers with more stable and natural vision.

Past efforts to reduce swim effect in progressive lenses have primarily focused on the reduction and precise placement of unwanted cylinder error in the lateral areas of the lens. However, unwanted mean power also plays a significant role in the perception of swim effect, and in overall wearer satisfaction. Mean power error can drastically increase blur and reduce visual acuity.


  • Higher image stability for reduced swim effect.

  • Improves peripheral visual acuity in the distance.

Steady Methodology carefully controls the mean power (spherical equivalent) of progressive lenses. Steady Methodology dramatically reduces unnecessary mean power in the periphery, especially on both sides of the fitting cross.

Distribution of spherical equivalent with and without Steady Methodology

Rx: Plano Sph. +2.00

Traditional progressives lens

Lens with Steady Methodology

Lenses available with Steady Plus Methodology:

Camber Steady Plus Progressive.

Endless Steady Progressive.
Essential Steady Progressive.

Effect of peripheral mean power error to distance vision.

Greatly reduced peripheral mean power error with Steady Methodology.

Proven results

Excellent near vision*

Excellent near and intermediate vision*

In a double-blind study:
• Wearers wore the progressive glasses for a week. At no time did they know the type of lens they were wearing.
• All wearers were asked about their user experience and level of satisfaction.
* Scores of 4 and 5 on a scale of 0 to 5.


Strict control of mean power in distance area of the lens

Significantly reduces mean power error.

Binocular balance improvement

Mean power in intermediate and near areas of the lenses are completely symmetrical.
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    Copyright ©2022 all rights reserved