A Novel Approach to Negative Dysphotopsia Mitigation
Negative Dysphotopsia (ND), characterized by a temporal dark shadow in the visual field, persists as a challenging postoperative complication despite otherwise successful cataract surgery. Addressing this concern, Lenstec developed the SOFTEC HDO (HD Oval) IOL; to meet the evolving expectations of both surgeons and patients while maintaining seamless compatibility with existing surgical instruments and techniques.
Intraocular lens (IOL) implantation remains one of the most successful and widely performed surgical interventions, with approximately 28 million procedures annually. This figure is expected to rise significantly in the coming decades due to an aging population and increasing demand for enhanced visual outcomes.
Negative Dysphotopsia (ND), characterized by a temporal dark shadow in the visual field, persists as a challenging postoperative complication despite otherwise successful cataract surgery. Addressing this concern, Lenstec developed the SOFTEC HDO (HD Oval) IOL, to meet the evolving expectations of both surgeons and patients while maintaining seamless compatibility with existing surgical instruments and techniques.
Key Features & Benefits
- Precision Series Labelling: Improved lens accuracy supports clinicians in consistently achieving intended target refraction for their patients.
- Oval Optic Design: Minimizes edge-related visual disturbances, reducing negative dysphotopsia.
- Enhanced Aberration Control: Addresses both negative and positive corneal aberrations to optimize clarity.
- 360-Degree Square-Edge Technology slows the progression of PCO, minimizing the need for follow-up procedures.
- Surgical Compatibility: Requires no modifications to standard surgical workflows or instrumentation.
Oval Optic Design and Negative Dysphotopsia Reduction
The SOFTEC HDO incorporates a uniquely engineered oval optic (5.75 mm x 6.50 mm), intended for horizontal implantation. This innovative design minimizes the edge effects responsible for ND, thereby significantly enhancing patient satisfaction. Clinical evidence supports that increasing the horizontal dimension of the optic reduces ND incidence, aligning with the latest insights into dysphotopsia management.
360° Square-Edge Barrier for PCO Prevention
Posterior capsule opacification (PCO) remains a prevalent concern in cataract surgery, often necessitating Nd:YAG laser capsulotomy. SOFTEC HDO features a full 360° square-edge design, effectively creating a continuous barrier that inhibits lens epithelial cell migration.
Compared to IOLs with a partial square-edge design, this advanced configuration helps mitigate PCO development, reducing post-surgical interventions and preserving long-term visual outcomes.
Optimized Optical Performance
Building on the foundation of the SOFTEC HD portfolio of IOLS, the HDO model leverages a patented dual-surface curvature to mitigate spherical aberrations. This optimization facilitates precise focal point formation, delivering superior contrast sensitivity and sharp visual acuity across varying lighting conditions.
The SOFTEC HDO features Precision Series Labelling with 0.25D steps, offering enhanced precision when compared to standard IOLs, which are typically available in 0.50D increments and manufactured to much broader lens power tolerances.
This enhanced accuracy allows surgeons to fine-tune refractive outcomes with greater confidence, reducing residual refractive error and optimizing patient satisfaction by achieving closer alignment to the intended visual target.
Streamlined Surgical Handling for Efficiency
Engineered with an “always right-way” design, the SOFTEC HDO simplifies IOL handling and implantation, minimizing intra-operative complexity. This intuitive design enhances predictability and efficiency, making it particularly advantageous in high-volume surgical environments, where precision and workflow optimization are critical.
Regulatory Excellence & Global Quality Assurance
Lenstec stands among a select group of FDA-approved IOL manufacturers, underlining its commitment to rigorous quality control and patient safety. The SOFTEC HDO meets the highest international regulatory standards, including:
- FDA Approved
- BSI Registered
- ISO Compliant quality system certification
These Accreditations reinforce the reliability, safety and global acceptance of Softec HDO as a premium monofocal solution
User Feedback
“It can effectively reduce positive aberration and significantly improve the contrast sensitivity. Compared with a single aspheric IOL, it provides better functional vision and lower eccentric sensitivity. Compared with the ordinary optical area, the large optical area design has a better barrier effect of stabilizing the posterior capsule and is suitable for high myopia”.
– Xuedong Zheng
“Large optical area prevents nasal and temporal glare”.
– Zin Zou
