Multifocal Lens Analyzer 3.0.8

This application offers a professional tool designed specifically for vision science practitioners, supported by evidence-based methodologies.

The primary method utilized within clinical practice for assessing visual performance through multifocal intraocular lenses (IOLs) or multifocal contact lenses is the Visual Acuity Defocus Curve. This software facilitates the measurement of Defocus Curves, providing several advantages over traditional chart-based approaches.

Built on a freemium model, downloading the app grants access to core features, including:

• Visual Acuity Defocus Curves
• Measurement at two standard distances: 2 meters and 4 meters
• Selectable Defocus Lenses ranging from +5.00 D to -5.00 D
• Snellen optotype presentation

Important considerations prior to downloading on an iPhone:

• The functionality varies depending on whether the app is installed on an iPad or an iPhone.
• An iPad is required to perform Defocus Curve measurements directly.
• If installed on an iPhone, the device functions solely as a remote control; measuring the Defocus Curve still necessitates an iPad.
• Additional procedural information is available at: https://defocuscurve.com/en/testing-defocus-curve

The application also offers a PRO version with enhanced capabilities, including:

• Contrast Sensitivity Defocus Curve analysis
• Optional measurement steps of ±0.25 D around the zero defocus point
• Sloan (ETDRS) optotypes
• Auto-calculation of sphere prescriptions considering Rx, defocus, and distance parameters
• Remote control functionality via another iOS device
• Historical database for storing multiple defocus curves
• Assignment of defocus curves to specific protocols, such as different IOL types or contact lens designs
• Storage of additional patient data (e.g., pupil size, prescription details, date)
• Data export in CSV format for further analysis
• Calibration options tailored to various iPad models or personalized calibration routines
• Calculation of the area under the defocus curve for comprehensive analysis

Regarding the PRO subscription:

The Multifocal Lens Analyzer operates on a freemium basis. Full access can be obtained through a yearly auto-renewing subscription priced at €49.99 (pricing may vary across regions). Payment is processed via your iTunes account upon purchase confirmation. The subscription renews automatically unless auto-renew is deactivated at least 24 hours before the current period ends. Renewal charges are applied within this timeframe, and users can manage subscriptions through their device’s account settings. Any unused trial period will be forfeited upon subscription purchase. More details are available in our terms and privacy policy at https://www.defocuscurve.com/en/2-documentation/25-terms-conditions.

Support and further information:

Visit our webpage at www.defocuscurve.com to review validation studies and see how researchers have utilized the app. Join our community for questions or support at: www.facebook.com/groups/qvisionacademy/.