Diffractive Intraocular Lens and Contact Lens with High Efficiency

This invention is a highly efficient diffractive intraocular and contact lens designed to minimize glare, halos, and image artifacts to improve vision. The lens design enhances efficiency by precisely directing light into desired diffractive orders which ultimately enhances vision at multiple focal points. This is particularly beneficial for trifocal lenses. The design also considers low-light conditions, making them suitable for a wider range of everyday use cases. This invention represents a significant step forward in vision enhancement, delivering improved performance over existing lens technologies.

Background: 
Current lens technologies, particularly those using diffractive surfaces, often suffer from suboptimal light distribution, with significant portions of light not being directed into the desired diffractive orders. Traditional lenses often experience significant light loss, leading to undesirable effects such as glare, halos, and image artifacts. This inefficiency impacts overall visual quality and adaptability in different lighting conditions. Existing solutions, such as bifocal and trifocal lenses, attempt to balance light distribution but often fall short in achieving high efficiency across multiple focal orders. This new design overcomes these limitations by significantly improving how light is directed through the lens, providing better visual clarity and reducing aberrations for high efficiency performance in both bright and low-light conditions. 

Applications: 

• Ophthalmology
• Optometry
• Vision correction (e.g., intraocular lenses for cataract surgery or presbyopia correction)
• Low-light vision enhancement

Advantages: 

• Increased light efficiency to the desired focal orders, improving visual clarity
• Reduced glare, halos, and image artifacts compared to traditional lenses
• Improved performance under both bright and low-light conditions
• Enhances vision at multiple focal points