Air Optix Multifocal Fitting Guide: A Comprehensive Plan

This guide details fitting Air Optix Multifocal lenses, designed for seamless vision at all distances. It covers presbyopia correction, innovative design, and crucial parameters for successful fitting outcomes.

Air Optix Plus HydraGlyde Multifocal contact lenses represent a significant advancement in presbyopia correction, offering a comfortable and effective solution for individuals experiencing age-related blurry near vision. These monthly disposable lenses are designed to provide clear vision at near, intermediate, and far distances, minimizing the need for reading glasses.

Unlike traditional multifocal lenses with distinct zones, Air Optix Multifocal utilizes a Precision Profile Design. This innovative technology creates a smooth, gradual transition between powers, resulting in seamless vision and reduced visual disturbances. The lenses are crafted from Lotrafilcon B material, known for its high oxygen permeability and exceptional comfort.

Specifically, these lenses aim to deliver comfort and clear vision throughout the day. They are ideal for presbyopic patients seeking a high-performing, convenient contact lens option. Understanding the unique features and fitting considerations of Air Optix Multifocal is crucial for practitioners to achieve optimal patient satisfaction and visual outcomes. The diameter is consistently 14.2mm, simplifying fitting choices.

Understanding Presbyopia and Multifocal Contact Lenses

Presbyopia is a natural, age-related condition affecting the eye’s ability to focus on near objects. It typically becomes noticeable around age 40, as the lens loses flexibility, making tasks like reading or using digital devices increasingly difficult. This isn’t a disease, but a normal part of aging, impacting nearly everyone.

Multifocal contact lenses address presbyopia by incorporating multiple power zones into a single lens. These zones correct for distance, intermediate, and near vision, providing a continuous range of clear sight. Unlike single-vision lenses, multifocals eliminate the need to switch between glasses for different activities.

The design philosophy behind multifocal lenses, like Air Optix Multifocal, centers on creating a smooth power progression. This minimizes the visible transitions between zones, reducing common complaints like glare or blurry vision. Successful multifocal fitting requires careful consideration of the patient’s visual needs and a thorough understanding of lens design principles. Proper assessment and fitting are key to maximizing comfort and visual acuity.

Key Features of Air Optix Plus HydraGlyde Multifocal

Air Optix Plus HydraGlyde Multifocal lenses stand out due to several key features designed for both comfort and visual performance. The Precision Profile Design is a cornerstone, creating predictable and seamless vision across all distances. This innovative design minimizes disruptions and maximizes clarity.

The lenses boast a smooth power progression, ensuring gradual transitions between zones, reducing the likelihood of noticeable visual jumps. This is crucial for comfortable all-day wear. Furthermore, the HydraGlyde Moisture Matrix technology ensures lasting hydration, minimizing dryness and irritation, even with extended wear.

These lenses offer a high level of oxygen permeability, with a Dk/t of 138 at -3.00D, promoting corneal health. While they don’t include a UV filter, their material, Lotrafilcon B, contributes to overall comfort and breathability. Available in a power range of +6.00 to -12.00D, they cater to a wide range of prescriptions, making them a versatile option for presbyopic patients.

Lens Material and Water Content (Lotrafilcon B)

Air Optix Plus HydraGlyde Multifocal lenses are crafted from Lotrafilcon B, a silicone hydrogel material renowned for its exceptional oxygen permeability and comfort. This material strikes a balance between oxygen transmissibility and water content, crucial for maintaining corneal health during extended wear.

Lotrafilcon B allows for a Dk/t of 138 (at -3.00D), facilitating ample oxygen flow to the cornea, minimizing hypoxia-related complications. While the precise water content isn’t explicitly stated as a percentage, the HydraGlyde Moisture Matrix technology embedded within the material ensures lasting hydration throughout the day.

This matrix creates a protective cushion of moisture, reducing friction and enhancing wearing comfort. The material’s inherent properties contribute to reduced protein and lipid deposition, promoting lens cleanliness and extending wear time. Lotrafilcon B’s stability also ensures consistent lens parameters and reliable performance. It’s a key factor in the overall success and patient satisfaction with these multifocal lenses.

Oxygen Permeability (Dk/t) – Importance and Values

Oxygen permeability, measured as Dk/t, is a critical factor in contact lens material selection, directly impacting corneal health. The cornea requires oxygen to maintain its physiological function; insufficient oxygen can lead to hypoxia, causing discomfort, redness, and potentially long-term complications.

Air Optix Plus HydraGlyde Multifocal lenses boast a Dk/t of 138 at -3.00D. This value signifies a high level of oxygen transmissibility, allowing ample oxygen to reach the cornea even during extended wear. The Dk/t value varies slightly with lens power, but remains consistently high across the available range.

A higher Dk/t minimizes corneal edema and neovascularization risks, promoting healthier lens wear. Silicone hydrogel materials, like Lotrafilcon B used in Air Optix, inherently offer superior oxygen permeability compared to traditional hydrogel lenses. This makes them ideal for patients seeking comfortable, all-day wear, particularly those with presbyopia requiring multifocal correction. Prioritizing adequate Dk/t is paramount for patient wellbeing.

Available Parameters: Power Range and Base Curves

Air Optix Plus HydraGlyde Multifocal lenses offer a comprehensive range of parameters to facilitate precise fitting for diverse prescriptions. The available power range extends from +6.00 to -12.00 diopters, accommodating a broad spectrum of refractive errors commonly associated with presbyopia.

Base curves are crucial for optimal lens-to-cornea alignment and visual acuity. Air Optix Multifocal lenses are currently available in a single base curve of 8.60mm. This standardized base curve simplifies the fitting process and ensures consistent performance across a wide patient base.

The diameter of the lens is fixed at 14.2mm, contributing to comfortable centration and minimizing complications. While limited base curve options exist, the wide power range and innovative design of the Precision Profile allow for effective multifocal correction. Careful refraction and trial lens fitting are essential to maximize visual outcomes within these parameters.

Diameter and Fitting Considerations (14.2mm)

Air Optix Plus HydraGlyde Multifocal lenses feature a diameter of 14.2mm, a size generally well-tolerated by a significant portion of the contact lens-wearing population. This diameter contributes to stable centration on the cornea, minimizing issues like decentration which can compromise visual clarity, particularly with multifocal designs.

When fitting, consider the patient’s corneal diameter and limbal ring size. While 14.2mm is a common size, individual corneal dimensions can influence lens comfort and performance. Assess blink patterns and lid tightness; these factors can affect lens movement and stability.

Proper edge alignment is vital. A well-fitting lens should exhibit minimal edge lift or compression. Evaluate the lens position in all gazes – primary, and extremes – to ensure consistent coverage and optimal oxygen transmission. The 14.2mm diameter, combined with the lens material, aims to provide both comfort and effective multifocal correction, but careful evaluation is always necessary.

The Precision Profile Design: How it Works

Air Optix Plus HydraGlyde Multifocal lenses utilize an innovative Precision Profile Design, a key element in achieving predictable and seamless vision across all distances. This design isn’t a simple concentric ring system; instead, it incorporates a complex, aspheric surface with multiple power zones.

The design strategically distributes plus power in the distance zone for clear far vision, while incorporating intermediate and near power zones. These zones aren’t sharply defined but blend smoothly, creating a gradual transition between focal points. This smooth progression minimizes the visible lines often associated with traditional multifocal lenses, reducing potential visual disturbances.

The Precision Profile is created to match the natural aspheric shape of the eye, optimizing light focusing and reducing aberrations. This results in improved visual quality and enhanced comfort. The design’s predictability simplifies the fitting process, allowing practitioners to achieve successful outcomes more efficiently.

Smooth Power Progression for Seamless Vision

Air Optix Multifocal lenses excel due to their smooth power progression, a critical feature for minimizing visual disturbances and maximizing comfort. Unlike stepped power changes in some multifocal designs, these lenses offer a gradual transition between distance, intermediate, and near corrections.

This seamless progression is achieved through the Precision Profile Design, which incorporates multiple power gradients. These gradients aren’t abrupt shifts but rather subtle blends, allowing the eye to transition naturally between focal points. This minimizes the “lines” or noticeable jumps in vision that can occur with traditional multifocal contact lenses.

The smooth power progression reduces the likelihood of experiencing issues like blurry vision at certain distances or difficulty adapting to the lenses. It contributes to a more natural visual experience, allowing patients to comfortably perform various tasks – reading, computer work, and distance viewing – without constant refocusing. This design prioritizes a continuous, clear field of vision.

Fitting Philosophy: Initial Lens Selection

Initial lens selection for Air Optix Multifocal hinges on a comprehensive refraction and a thorough understanding of the patient’s visual needs. Begin with the patient’s current single vision prescription as a starting point, but don’t solely rely on it. A detailed case history, including lifestyle and visual demands, is paramount.

For first-time multifocal lens wearers, consider a slightly more plus power in the distance zone to facilitate adaptation. This can help minimize complaints of blurry distance vision during the initial fitting phase. Utilize the available power range (typically -6.00 to +3.00D) and base curves to optimize the fit.

Prioritize a diagnostic lens fitting set. This allows for precise refinement of the add power and ensures the patient achieves clear vision at all distances. Remember the lens diameter is 14.2mm, a standard size, but individual corneal curvature influences the optimal base curve selection. Careful consideration of these factors maximizes fitting success.

Trial Lens Fitting Process

The trial lens fitting process for Air Optix Multifocal is crucial for success. Dispense a trial pair – one lens per eye – representing your initial power selection. Allow the patient at least 15-20 minutes to adapt to the lenses in the office. Encourage them to focus on both distance and near targets.

Observe the patient’s pupillary response and assess lens centration. Poor centration can indicate an incorrect base curve. Ask detailed questions about visual clarity at all distances. Specifically, inquire about any halos, glare, or distortions.

Following the in-office evaluation, have the patient wear the trial lenses for a full day, engaging in their typical activities. Request they record their experiences – noting any difficulties with driving, reading, or computer use. This real-world feedback is invaluable for refining the prescription and ensuring optimal comfort and vision.

Subjective Refraction and Over-Refraction Techniques

Subjective refraction is paramount when fitting Air Optix Multifocal lenses. Begin with the patient’s existing spectacle prescription as a starting point. Refine the distance and near corrections separately, ensuring clear vision at each focal point. Pay close attention to the patient’s responses, utilizing equal addition principles.

Over-refraction is a valuable technique to fine-tune the multifocal fit. With the trial lenses in place, over-refract both distance and near, adding or subtracting power in 0.25D increments. This helps identify any residual refractive error and optimize visual acuity.

Specifically, assess the impact of plus and minus changes on intermediate vision. A slight plus refinement can often improve near performance, while a minus adjustment may enhance distance clarity. Document all changes meticulously, and correlate subjective findings with objective measurements. Remember, patient comfort and visual satisfaction are key indicators of a successful fit.

Assessing Intermediate and Near Vision

Evaluating intermediate vision is crucial with Air Optix Multifocal lenses, as this range often presents challenges for presbyopes. Utilize a reading task at approximately 40-50cm – a computer screen or typical work distance – to assess clarity and comfort. Ask the patient to report on any blurriness, distortions, or eye strain.

Near vision assessment should involve a standard reading card held at a comfortable reading distance (typically 35-40cm). Evaluate reading speed, accuracy, and the presence of any halos or ghosting. Inquire about the patient’s ability to maintain focus without excessive head movement.

Compare vision with and without the trial lenses, noting any improvements or regressions. Encourage the patient to simulate their daily activities – reading, computer use, driving – to provide realistic feedback. A successful fit provides clear, comfortable vision at all distances, minimizing adaptation time and maximizing patient satisfaction.

Troubleshooting Common Fitting Issues

Distance vision complaints often indicate incorrect distance power or inadequate add power. Consider a slight adjustment to the distance Rx or a modification to the add power in the trial lens. Intermediate blur may necessitate a power progression adjustment, potentially increasing the add power or altering the lens design.

Near vision difficulties could stem from insufficient plus power or an incorrect reading addition. A small increase in the add power is often beneficial. Haloes or glare can be addressed by ensuring proper centration and fit; consider a different base curve or diameter.

Lens rotation can cause inconsistent vision; evaluate lens fit and consider a different diameter. Discomfort may indicate poor lens material compatibility or inadequate hydration. Remind patients of proper lens care and re-evaluate fit after a trial period. Thorough assessment and patient feedback are key to resolving fitting challenges with Air Optix Multifocal lenses.

Patient Education: Lens Care and Handling

Comprehensive patient education is vital for successful Air Optix Multifocal lens wear. Emphasize the importance of proper hand hygiene before handling lenses – wash and dry hands thoroughly with a lint-free towel. Demonstrate correct insertion and removal techniques, stressing gentle handling to avoid tearing.

Daily cleaning is crucial. Instruct patients to use a multi-purpose solution recommended for silicone hydrogel lenses, rubbing the lenses to remove deposits. Never use tap water or saliva for cleaning or storage. Proper storage in a clean case filled with fresh solution is essential; cases should be replaced regularly.

Avoid wearing lenses during sleep, swimming, or showering. Explain the signs of potential complications – redness, pain, blurred vision – and the need to remove lenses immediately and seek professional advice. Reinforce the prescribed wearing schedule and replacement frequency for optimal comfort and vision.

Follow-Up Visits and Adjustments

Scheduled follow-up visits are paramount to ensure optimal Air Optix Multifocal lens performance. A one-week assessment allows for evaluation of lens fit, vision quality at all distances, and patient comfort. Subjective refraction and over-refraction should be repeated to confirm the initial prescription remains accurate.

Address any reported issues promptly. Common concerns include glare, halos, or fluctuating vision. Minor adjustments to lens power or parameters – base curve or diameter – may be necessary to refine the fit; Encourage patients to provide detailed feedback regarding their visual experience.

Long-term monitoring is also important. Annual comprehensive eye exams are recommended to assess ocular health and ensure continued lens suitability. Lifestyle changes or evolving visual needs may necessitate prescription updates. Document all adjustments and patient responses meticulously for future reference.

Contraindications and When to Refer

Certain ocular conditions preclude Air Optix Multifocal lens fitting. These include active eye infections, severe dry eye syndrome unresponsive to treatment, uncontrolled glaucoma, and significant corneal abnormalities like keratoconus. Patients with a history of recurrent corneal ulcers are also generally not suitable candidates.

Referral to an ophthalmologist is crucial when encountering complex cases. This includes suspected pathology, unexplained vision loss, or persistent discomfort despite fitting adjustments. Any concerns regarding corneal health warrant immediate specialist evaluation.

Systemic conditions like uncontrolled diabetes or autoimmune diseases may impact contact lens wear. Careful assessment of the patient’s overall health is essential. If there’s uncertainty about a patient’s suitability, err on the side of caution and seek a specialist’s opinion. Prioritize patient safety and ocular health above all else.