Biofinity Multifocal Fitting Guide: A Comprehensive Plan
Biofinity Multifocal lenses offer a broad parameter range, even for children with challenging prescriptions, facilitating a successful and comfortable vision correction experience.
This comprehensive guide details a streamlined fitting process, utilizing blur-out methods and toric fit sets for optimal results and patient satisfaction.
Biofinity Multifocal lenses represent a significant advancement in presbyopic contact lens correction, designed to provide clear vision at all distances. These lenses utilize a unique aspheric design, creating a smooth transition between near, intermediate, and far vision zones.
CooperVision’s Biofinity Multifocal offers exceptional comfort and breathability thanks to its Aquaform® Technology, mimicking the natural hydration of the cornea. This makes them suitable for extended wear, enhancing patient compliance. The wide availability of parameters, including toric options, expands the candidacy pool, addressing astigmatism alongside presbyopia.
This fitting guide aims to equip practitioners with the knowledge and tools necessary to successfully fit Biofinity Multifocal lenses, optimizing visual outcomes and patient satisfaction.
Understanding the Biofinity Multifocal Design
Biofinity Multifocal lenses employ a concentric, aspheric design featuring multiple zones to deliver clear vision at all distances. This design incorporates a central zone for distance vision, surrounded by intermediate and near zones, creating a seamless visual experience.
The lens’s unique optical profile minimizes spherical aberration, enhancing visual clarity and reducing halos or glare. Aquaform® Technology ensures high oxygen permeability, promoting corneal health and comfort. The design prioritizes consistent progressive zones, simplifying the fitting process and improving predictability.
Understanding this design is crucial for successful fitting, allowing practitioners to select appropriate parameters and address individual patient visual needs effectively.
Patient Selection Criteria
Ideal candidates for Biofinity Multifocal lenses are presbyopic patients exhibiting symptoms of difficulty with near vision, such as straining to read or holding materials at arm’s length. A stable refraction is essential, ideally within the past year, to ensure long-term success.
Patients should demonstrate sufficient tear film quality and quantity for comfortable lens wear. Those with significant dry eye disease may require pre-treatment or alternative solutions. A comprehensive ocular health evaluation is crucial to rule out any contraindications.
Consider patient motivation and lifestyle; active individuals may benefit significantly from the convenience of multifocal contact lenses.
Refraction and Initial Assessment
A thorough refraction, including distance and near vision, is paramount. Record the patient’s best spectacle correction and determine the add power required for comfortable near vision. Monocular and binocular acuities should be assessed at all distances.
Evaluate the patient’s pupil size in both scotopic and photopic conditions, as this influences lens design selection. Assess accommodative amplitude and facility to understand the patient’s ability to focus.
Carefully document any existing astigmatism, as Biofinity Toric Multifocal lenses may be necessary for optimal correction.
Determining Dominant Eye
Establishing dominance is crucial for multifocal lens fitting. A common technique involves the 1.50 blur method. Place a +1.50 lens over the patient’s non-dominant eye.
Observe which eye reports more blur or discomfort; the eye most affected is typically the dominant one. Alternatively, utilize a hole-cover test, asking the patient to look at a distant object with both eyes open, then cover each eye alternately.
The eye that maintains stable vision when covered is generally considered dominant. Accurate dominance assessment guides add power distribution within the lens.
Trial Lens Selection: Key Parameters
Successful Biofinity Multifocal fitting relies on precise parameter selection. Begin with the patient’s distance prescription, considering a range of sphere powers from +3.00D to -8.00D. Cylinder correction spans up to -3.00D, accommodating astigmatism.
Axis orientation should align with the patient’s existing correction, with adjustments made in 5-degree increments during refinement. Base curve selection is vital; options typically range from 8.4mm to 8.8mm;
Carefully consider the patient’s ADD power, typically between +0.75D and +2.50D, to ensure comfortable near vision.
Sphere Power Range
The Biofinity Multifocal lens boasts a comprehensive sphere power range designed to address a wide spectrum of refractive errors. Initial trial lens selection should generally fall between +3.00D and -8.00D, providing a solid starting point for most presbyopic patients.
However, practitioners should be aware that this range allows for flexibility in addressing both hyperopic and myopic prescriptions. Careful consideration of the patient’s distance vision needs is paramount when determining the appropriate sphere power for the initial trial set.
Remember to document all selections carefully.
Cylinder Power Range
When fitting Biofinity Multifocal lenses, the cylinder power range is crucial for astigmatic correction. The available range extends up to -5.00D, accommodating a significant portion of astigmatic patients requiring multifocal correction. This broad range allows for precise adjustments to optimize visual acuity.
Practitioners should meticulously assess the patient’s astigmatism during the refraction process. Utilizing a fit set can help confirm the toric parameters and ensure accurate cylinder power selection. Remember that proper cylinder correction is vital for comfortable and clear vision at all distances.
Axis Orientation
Precise axis orientation is paramount when fitting Biofinity Toric Multifocal lenses. After initial trial lens insertion, carefully evaluate lens rotation. Adjust the axis based on observed rotation, rounding to the nearest 5-degree increment for optimal visual performance and patient comfort.
Confirming the toric parameters with a fit set is highly recommended. This step ensures accurate axis alignment and minimizes potential for induced astigmatism. Remember, even slight axis misalignments can compromise vision, particularly at near. Consistent monitoring and refinement are key to a successful fit.
Base Curve Selection
Biofinity Multifocal lenses offer a range of base curves to optimize corneal coverage and lens stability. Initial base curve selection should be guided by the patient’s existing lens fit, if applicable, or a keratometry reading. A well-fitted base curve ensures proper oxygen permeability and minimizes complications.
Consider the patient’s lifestyle and visual demands when choosing a base curve. Steeper curves may provide improved near vision, while flatter curves can enhance distance acuity. Careful observation of lens movement and corneal clearance is crucial for a comfortable and effective fit.
Fitting Biofinity Toric Multifocal Lenses
Biofinity Toric Multifocal lenses require a precise fitting process to address both astigmatism and presbyopia. Begin by confirming the spherical, cylindrical, and axial parameters using a diagnostic fit set. This allows for accurate toric lens evaluation;
Step three involves utilizing the Biofinity toric fit set to confirm the trial lens parameters. Axis adjustments should be made based on lens rotation, rounding to the nearest 5-degree increment. Careful monitoring of lens stability and visual acuity is essential throughout the fitting process, ensuring optimal comfort and clear vision for the patient.
Confirming Toric Parameters with a Fit Set
Biofinity Toric Multifocal fitting benefits significantly from utilizing a diagnostic fit set. This crucial step allows for precise confirmation of the initial refraction and parameter selection. The fit set provides a range of cylinder powers and axes, enabling a refined assessment of astigmatism correction.
Carefully evaluate lens rotation and stability on the eye. Observe for any signs of binding or rotation, which may indicate an incorrect axis. Adjust the axis in small increments, typically rounding to the nearest 5 degrees, to optimize visual acuity and patient comfort. A successful fit relies on accurate parameter confirmation.
Axis Adjustment and Rotation
Biofinity Toric Multifocal lens axis adjustment is critical for optimal vision. Following initial fit set evaluation, carefully assess lens rotation on the eye. Observe patient responses to slight axis changes, prioritizing best visual acuity and comfort. Remember to round adjustments to the nearest 5-degree increment for practical clinical application.
Rotation can be influenced by eyelid interaction and tear film dynamics. Encourage patients to report any sensations of movement or blur. Document all axis adjustments meticulously. A stable, well-aligned lens minimizes aberrations and maximizes the multifocal design’s effectiveness, leading to improved patient satisfaction.
Visual Assessment and Refinement
Biofinity Multifocal fitting requires thorough visual assessment. Begin by checking binocular vision with room lights illuminated, evaluating distance and intermediate clarity. Subsequently, meticulously assess near vision performance, noting any complaints of blur or distortion. Patient feedback is paramount during this stage.
Refinement may involve minor sphere or add power adjustments to optimize vision at all distances. Consider patient lifestyle and visual demands when making these decisions. A successful fit balances distance, intermediate, and near acuity, providing comfortable and functional vision. Document all changes and patient responses carefully.
Binocular Vision Check with Room Lights
Biofinity Multifocal lens evaluation begins with a binocular vision check under standard room lighting conditions. This initial assessment determines the overall visual performance and identifies any immediate concerns. Observe the patient’s gaze, looking for stability and symmetry.
Ask the patient to report clarity at distance and intermediate ranges, noting any discrepancies between eyes. Assess for potential issues like glare, halos, or distortions. This step establishes a baseline before proceeding to near vision testing. Careful observation and patient feedback are crucial for a successful fit.
Near Vision Assessment
Following the distance and intermediate checks, thoroughly assess near vision with Biofinity Multifocal lenses. Have the patient read standard near vision charts at their typical reading distance. Observe reading speed, posture, and any reported difficulties.
Inquire about clarity, comfort, and the presence of any distortions or blurriness. Encourage the patient to perform simulated daily tasks, like reading a phone or computer screen. This practical evaluation reveals real-world performance. Adjustments to lens power or parameters may be necessary based on these findings to optimize near vision acuity and comfort.
Adaptation Period and Follow-Up
Biofinity Multifocal lenses generally equilibrate quickly, but a minimum adaptation period of 15 minutes is crucial before assessing vision. This allows the lenses to settle and the visual system to adjust to the multifocal design.
Schedule a follow-up appointment within one to two weeks to evaluate adaptation progress and address any concerns. Assess both distance and near vision, and inquire about overall comfort and visual performance. Refinements may be needed based on patient feedback and objective measurements, ensuring optimal vision and satisfaction with the Biofinity Multifocal lenses.
Minimum Adaptation Time (15 Minutes)
Biofinity Multifocal lenses are designed for rapid stabilization, however, a crucial step in the fitting process is allowing a minimum adaptation time of 15 minutes. This period enables the lenses to settle correctly on the cornea and allows the patient’s visual system to begin adjusting to the multifocal optical zones.
Rushing the assessment can lead to inaccurate refraction and patient dissatisfaction. During these 15 minutes, patients should engage in normal activities to simulate real-world wearing conditions. Post-adaptation, a thorough visual assessment is essential to determine the success of the Biofinity Multifocal fit;
Troubleshooting Common Fitting Issues
Biofinity Multifocal fitting, while generally straightforward, can present challenges. Rotation of toric lenses is a frequent concern; adjust the axis in 5-degree increments based on slit lamp observation. If patients report fluctuating vision, verify lens centration and consider a base curve adjustment.
For complaints of glare or halos, re-evaluate the sphere power and ADD value. Insufficient ADD power can cause eye strain during near tasks. Remember to always reassess binocular vision and consider a trial lens exchange if initial parameters aren’t optimal for a comfortable, clear vision.
Biofinity Multifocal for Presbyopic Astigmatism
Biofinity Multifocal lenses excel in correcting presbyopic astigmatism, offering a wider range of parameters to address complex vision needs. Utilizing a toric fit set is crucial for confirming parameters and optimizing lens performance. Axis adjustment, rounded to the nearest 5 degrees, ensures proper alignment and minimizes rotational issues.
Retrospective analysis demonstrates successful fits within a DV Rx range of +1.25D to -3.25D and ADD powers from +1.25 to +2.50D. Careful assessment of binocular vision and a thorough refraction are key to achieving optimal visual acuity and patient comfort in these cases.
Utilizing the Biofinity Multifocal Fitting Guide
This Biofinity Multifocal Fitting Guide is specifically designed for this lens, ensuring accurate parameter selection and a successful fit. Begin by determining dominance, employing methods like the 1.50 blur-out technique – the eye most affected by plus power is typically dominant.
The guide emphasizes a simple, fast fitting process. Remember to allow a minimum adaptation period of 15 minutes before assessing vision, as lenses equilibrate quickly. Thoroughly check binocular vision with room lights and meticulously evaluate near vision performance for optimal patient outcomes.
Data from Retrospective Analysis (DV Rx & ADD Powers)
Retrospective analysis, encompassing 55 subjects (110 eyes), revealed a successful fitting range for Biofinity Multifocal lenses. Distance vision (DV) refraction ranged from +1.25D to -3.25D, demonstrating versatility across a spectrum of prescriptions. Add powers varied from +1.25D to +2.50D, indicating effective near vision correction capabilities.
This data, sourced from the 2023 CooperVision Biofinity Multifocal Fitting Guide, supports the lens’s adaptability. These findings highlight the broad applicability of the lens and inform fitting decisions, contributing to improved patient visual experiences and satisfaction.
Comparison with Clariti 1 Day Multifocal
Clariti 1 Day Multifocal contact lenses offer a distinct advantage through consistent progressive zones from lens to lens. This consistency simplifies the fitting process, potentially leading to a faster and more successful initial fit compared to other multifocal designs.
However, Biofinity Multifocal lenses provide a broader parameter range, potentially accommodating more complex prescriptions and patient needs. While Clariti prioritizes simplicity, Biofinity excels in customization. Both lenses aim for comfortable multifocal vision, but their approaches differ in fitting philosophy and parameter availability.
New Parameters and Expanded Range
Biofinity Multifocal lenses have undergone significant expansion in available parameters, directly addressing the needs of a wider range of presbyopic patients, particularly those with astigmatism. This broadened range allows for more precise customization and improved fitting success rates.
The updated offerings include increased sphere power options, extending the lens’s applicability to both lower and higher prescriptions. This expansion, announced in June 2021 by Bausch Lomb, demonstrates a commitment to providing comprehensive solutions for presbyopia. The goal is to optimize vision for more individuals.
Fitting Considerations for Children
Biofinity Multifocal lenses present a viable option for pediatric presbyopia, specifically for children who don’t adequately fit standard multifocal designs or have prescriptions exceeding typical ranges. Careful consideration is crucial when fitting these lenses on young patients.
Due to the unique physiological characteristics of children’s eyes, a thorough assessment of binocular vision and accommodative function is paramount. The expanded parameter range of Biofinity Multifocal lenses increases the likelihood of finding a suitable fit, but diligent follow-up and monitoring are essential to ensure comfort and optimal visual development.
Lens Equilibration and Stability
Biofinity Multifocal lenses are designed for rapid equilibration and demonstrate excellent on-eye stability. While quick adaptation is typical, it’s crucial to allow a minimum adaptation period of 15 minutes before conducting a comprehensive visual assessment. This timeframe allows the lenses to settle and provides a more accurate representation of the patient’s vision.
The lens material and design contribute to consistent performance and minimize rotation, particularly important for multifocal lenses. Regular follow-up visits are recommended to confirm continued stability and address any potential concerns regarding lens movement or comfort, ensuring long-term success.
Resources and Further Information
Biofinity Multifocal fitting is supported by CooperVision with a dedicated fitting guide, providing detailed instructions and valuable insights. This guide, updated in 2023, offers a systematic approach to patient selection, refraction, and lens parameter selection.
Practitioners can access retrospective analysis data, including details from studies involving 55 subjects (110 eyes) with DV Rx ranging from 1.25D to -3.25D and ADD powers from 1.25 to 2.50D. For comparisons, information on Clariti 1 Day Multifocal lenses is also available, highlighting their consistent progressive zones for simplified fitting.
Achieving Optimal Vision with Biofinity Multifocal
Biofinity Multifocal lenses, guided by the comprehensive fitting protocol, represent a significant advancement in presbyopic correction. The broad parameter range, including toric options, allows for customized solutions even for patients with astigmatism or unique visual needs.
Successful fitting relies on careful patient selection, accurate refraction, and a minimum 15-minute adaptation period. Utilizing resources like the CooperVision fitting guide and retrospective data ensures practitioners can confidently achieve optimal binocular vision and near vision clarity.
Ultimately, Biofinity Multifocal delivers comfortable, high-quality vision for a diverse patient population.