# Linsen-Navi — LensNavi > Intraocular lens selection tool for cataract surgery patients. (iPhone/iPad app by Ronald Krueger.) - Source: https://appshunter.io/ios/app/linsen-navi/id997309198 (this page in markdown: same URL + `.md`) - Developer: [Ronald Krueger](https://appshunter.io/developer/997309197) - Category: Health & Fitness, Lifestyle - Price: $5.99 - Age rating: 4+ - Requires: iOS 15.0 · 70 MB - Languages: German (Germany), American English - Released: 2015-06-02 - Data updated: 2026-09-16 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/linsen-navi/id997309198/reviews.md ## What is Linsen? Select your intraocular lens for cataract surgery depending on diopters and goal. By choosing an intraocular lens you can achieve a multitude of different targets. Whatever you're aiming at (e.g. getting rid of glasses for good, staying short-sighted in order to be able to read without glasses etc.) it is essential to be well informed before surgery in order to make the right decision. Ophthalmologists developed this app: depending on your diopters, accompanying eye diseases (macular drusen, age-related macular degeneration) and individual desires the app provides (vendor-independent) information about which intraocular lens can realize your plan and describes alternatives if your whishes exceed available options. Photos illustrate the visual impression you can achieve after surgery. All current intraocular lens types are included. As a well informed patient you are prepared for talking with your ophthalmologists when it comes to choosing among the variety of intraocular lenses. ## Key features - Intraocular lens selection based on diopters - Considers accompanying eye diseases - Supports individual patient goals - Vendor-independent information - Illustrates post-surgery visual impressions - Includes all current intraocular lens types ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/linsen-navi/id997309198/reviews.md ### 1/5 — unverschämt dafür Geld zu verlangen ! Keine Funktionalität *2017-04-26* 0 Sterne!!! 1 Stern muss man leider mindestens vergeben für Bewertungen. Das ist definitiv keine App. Ich habe auf Hinweis eines Augenarztes diese App gekauft. Der totale Reinfall!! Abzocke!!! Keine Funktionalität!! Nur eine Seite mit Text. An und Ausschalten von Buttons haben keinerlei Funktionalität. Es ist immer nur eine mit dem gleichen Seite mit Text und Bildern. Keinesfalls kaufen!! Das ist schlicht Betrug, leider habe ich erst nach dem Kauf gesehen, das es keine Entwicklerseite gibt und mich auf den Augenarzt vertraut :-( **Developer response:** Danke das Sie sich die Mühe gemacht haben die App zu bewerten um uns darauf aufmerksam zu machen, dass wir offensichtlich nicht deutlich genug beschrieben haben, dass Sie nach Eingabe Ihrer Werte auf das Bild tippen müssen, das Ihrem gewünschten Ergebnis nach einer OP entsprechen soll. (Diesen Hinweis haben wir jetzt über jedem Bild angebracht.) Wenn Sie also z.B: nach einer OP mit einer Lesebrille auskommen möchten tippen Sie auf das erste Bild. Wenn Sie den Wunsch nach Brillenfreiheit haben, dann tippen Sie auf das letzte Bild. Mit freundlichen Grüßen Ihr app4eyes Team ## Frequently asked questions about Linsen ### What is Linsen-Navi used for? Linsen-Navi is a tool designed to help patients undergoing cataract surgery select the most suitable intraocular lens. It considers your specific diopter measurements, any existing eye conditions, and your personal vision goals after surgery. ### How does Linsen-Navi help me prepare for surgery? By providing vendor-independent information on various intraocular lenses and illustrating potential visual outcomes, Linsen-Navi empowers you to have a more informed discussion with your ophthalmologist about your lens options. ### What eye conditions does Linsen-Navi account for? The app takes into account accompanying eye diseases such as macular drusen and age-related macular degeneration when recommending intraocular lenses, ensuring a more personalized selection process. ### Does Linsen-Navi offer information on all types of intraocular lenses? Yes, Linsen-Navi includes information on all current intraocular lens types available on the market, offering a comprehensive overview for patients. ### What is the price of Linsen-Navi? Linsen-Navi is a paid application, available for a one-time purchase price of $5.99. ### On which devices can I use Linsen-Navi? Linsen-Navi is compatible with iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users. ### How often is Linsen-Navi updated? The app was last updated on July 25, 2023, indicating ongoing support and potential for future improvements and information additions. ### Does Linsen-Navi have ads? No, Linsen-Navi is ad-free, providing an uninterrupted user experience focused solely on delivering essential information for your cataract surgery planning. ## Version history (last 5 releases) ### 1.5 — 2023-07-25 The app is available again with bug fixes, ergonomics and performance improvements. ### 1.4 — 2019-04-06 Increase performance. ### 1.3 — 2016-03-08 Automatic conversion of plus and minus - cylinder. ### 1.2 — 2015-10-23 App prepared for iOS 9.1 ### 1.1 — 2015-07-03 Back - Button inplemented for better handling ## Apps similar to Linsen | App | Rating | Price | Category | | --- | --- | --- | --- | | [BTFIT: Personal trainer online](https://appshunter.io/ios/app/btfit-personal-trainer-online/id1034954940) | 4.8 (309) | Free | Health & Fitness | ## More apps by Ronald Krueger - [MacuFix](https://appshunter.io/ios/app/macufix/id1460689059) All apps by Ronald Krueger: https://appshunter.io/developer/997309197 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-16.*