Conexiant
Login
  • Corneal Physician
  • Glaucoma Physician
  • New Retinal Physician
  • Ophthalmology Management
  • Ophthalmic Professional
  • Presbyopia Physician
  • Retinal Physician
The Ophthalmologist
  • Explore

    Explore

    • Latest
    • Insights
    • Case Studies
    • Opinion & Personal Narratives
    • Research & Innovations
    • Product Profiles

    Featured Topics

    • Anterior Segment
    • Glaucoma
    • Retina

    Issues

    • Latest Issue
    • Archive
  • Subspecialties
    • Cataract
    • Cornea
    • Glaucoma
    • Neuro-ophthalmology
    • Oculoplastics
    • Optometry
    • Pediatric
    • Retina
  • Business

    Business & Profession

    • Professional Development
    • Business and Entrepreneurship
    • Practice Management
    • Health Economics & Policy
  • Training & Education

    Career Development

    • Professional Development
    • Career Pathways

    Events

    • Webinars
    • Live Events
  • Events
    • Live Events
    • Webinars
  • Community

    People & Profiles

    • Power List
    • Voices in the Community
    • Authors & Contributors
  • Multimedia
    • Video
    • Podcasts
Subscribe
Subscribe

False

Advertisement
The Ophthalmologist / Issues / 2019 / Sep / aXA Good Question, Get a Good Answer
Anterior Segment Refractive Sponsored

aXA Good Question, Get a Good Answer

How can we eliminate positive and negative dysphotopsia? The best answer may be the ASPIRAaXA. Those likely to benefit from the 7 mm optic of this novel IOL include young people with large pupils, patients requiring good mesopic vision, and individuals at risk of retinal disease.

Sponsored By HumanOptics 9/29/2019 1 min read

Share

Negative dysphotopsia (a dark line at the visual periphery) and positive dysphotopsia (glare, halos and starbursts) are frustrating for patients. Several contributory factors have been identified (1, 2); among these, larger pupil size is particularly important because of associated edge effects.

As Matthias Bolz (Director, Ophthalmology Clinic, Kepler University, Austria) says, “Until recently, we could do little – large pupils always got negative dysphotopsia.” And now? “With aXA, patients don’t notice they have an IOL.” Those requiring good night vision may particularly benefit. “Dim light, when the pupil is large, is particularly associated with dysphotopsia; aXA’s large optic eliminates this issue.” Ophthalmologists also benefit, says Bolz: “Vitreo-retinal surgeons can have trouble viewing the vitreous base in the anterior part of the eye – the IOL edge interferes.”

With aXA, by contrast, the optic extends over the pupil, so the IOL edge is obscured. “The entire fundus and periphery – where pathology often occurs – are clearly visible.” And this panoramic view also facilitates retinal surgery: “Fundoscopy is easier, you see the entire retina in detail, and it’s simple to collect images with very large angles,” says Bolz. He also notes that the aXA ‘Safeloader(R)’ preloaded system is particularly helpful, as it avoids difficulties in getting the largersized lens into the cartridge. “It’s very easy – plug and play!” And the procedure? “I never have any problems,” says Bolz, adding that a bigger lens could be trickier to insert but, in practice, the aXA is so flexible that implantation is simple.

As for outcomes, Bolz describes convincing one-year rotational stability in 50 patients: “Certainly within the normal range of other lenses.” Finally, he cites two specific negative dysphotopsia cases: “I replaced their 6 mm IOLs with aXAs – they were delighted with the outcome, but also a bit angry that they didn’t get aXA IOL to begin with!”

• Monofocal, foldable, 11 mm diameter one-piece posterior chamber lens
• Fabricated from glistening-free hydrophilic, UV-blocking acrylate
• Aberration-free aspheric optic
• Posterior surface with 360-degree LEC barrier
• 10 to 30 D (0.5 D steps)
• Innovative design:
• enlarged 7 mm optic diameter – eliminates dysphotopsia
• cut-out haptic design – enhanced stability in capsular bag, more predictable refractive results, enhanced flexibility (allows insertion via 2 - 2.7 mm incision);
• Highly stable: mean absolute rotation (end of surgery to 4 months) of 1.8+/-2 degrees
• Excellent refractive outcomes (mean spherical equivalent -0.04+/-0.47D), close to target refraction (-0.02 +/- 0.15D)
• No reports of optical phenomena
• Enlarged optic improves view inside eye (3), assists retinal surgery, enables enlarged rhexis (4)

References

  1. I Geneva and B Henderson, Asia Pac J Ophthalmol, 6, 364 (2017). PMID: 28726357.
  2. A Liekfeld, “Sonderlinsen – wann und welche?”, Concept Ophthalmologie, 1, 28 (2010).
  3. C Skorpik et al in Freyler H, Skorpik C, Grasl M, eds, 3 Kongress der Deutschen Gesellschaft fur Introkularinsen Implantation. Vienna: Springer (1990).
  4. Y Takamura, et al., J Cataract Refract Surg, 40, 1850 (2014). PMID: 25201533.

Related Content

Newsletters

Receive the latest Ophthalmology news, personalities, education, and career development – weekly to your inbox.

Newsletter Signup Image

False

Advertisement

False

Advertisement

Explore More in Ophthalmology

Dive deeper into the world of Ophthalmology. Explore the latest articles, case studies, expert insights, and groundbreaking research.

False

Advertisement
The Ophthalmologist
Subscribe

About

  • About Us
  • Work at Conexiant Europe
  • Terms and Conditions
  • Privacy Policy
  • Advertise With Us
  • Contact Us

Copyright © 2025 Texere Publishing Limited (trading as Conexiant), with registered number 08113419 whose registered office is at Booths No. 1, Booths Park, Chelford Road, Knutsford, England, WA16 8GS.

Disclaimer

The Ophthalmologist website is intended solely for the eyes of healthcare professionals. Please confirm below: