Clariti 1 Day Multifocal lenses offer a comfortable and effective solution for presbyopia, providing clear vision at all distances. This guide details the fitting process, ensuring optimal patient outcomes with these silicone hydrogel daily disposables.
What are Clariti 1 Day Multifocal Lenses?
Clariti 1 Day Multifocal contact lenses are daily disposable lenses designed to correct presbyopia – the age-related loss of near vision. Manufactured by CooperVision, these lenses feature a unique multifocal design, providing clear vision at distance, intermediate, and near ranges. They are crafted from a silicone hydrogel material with 56% water content, ensuring both comfort and high oxygen permeability (86 Dk/t) for healthy eye wear.
These lenses are ideal for individuals seeking a convenient and healthy vision correction option. The daily disposable format eliminates the need for cleaning and storage, reducing the risk of protein build-up and irritation. Clariti 1 Day Multifocal lenses are also available in a variety of parameters to accommodate a wide range of prescriptions, including those with astigmatism up to -2.00 diopters.
Understanding Presbyopia and Multifocal Lenses
Presbyopia is a natural age-related condition where the eye’s lens loses flexibility, making it difficult to focus on near objects. Typically beginning around age 40, it impacts everyone, often requiring reading glasses. Multifocal lenses address presbyopia by incorporating multiple power zones into a single lens, providing clear vision at various distances.
Unlike single-vision lenses, multifocals offer a seamless transition between distance, intermediate, and near vision. Clariti 1 Day Multifocal lenses utilize a center-distance design, with concentric rings of varying power to correct both distance and near vision simultaneously. This design allows the eye to naturally select the appropriate power based on the viewing distance. Successful fitting requires careful consideration of the patient’s visual needs and lifestyle to ensure optimal comfort and clarity.
Lens Parameters and Specifications
Clariti 1 Day Multifocal lenses feature a water content of 56%, an oxygen permeability of 86 Dk/t, and are available in base curves and diameters for optimal fit.
Available Base Curves (BC)
Clariti 1 Day Multifocal lenses are currently offered with a single base curve option of 8.6mm. This standardized base curve is designed to fit a broad range of corneas, simplifying the fitting process for practitioners and enhancing patient comfort. While a single BC is available, careful consideration of corneal topography and patient feedback remains crucial for successful lens adaptation.
It’s important to note that although 8.6mm is the standard, individual corneal curvature can vary. Practitioners should assess each patient’s corneal shape to ensure proper lens-to-cornea alignment. In cases where the standard BC doesn’t provide optimal fit, alternative lens options might be considered. Proper assessment minimizes potential complications and maximizes visual acuity and comfort for the wearer.
Diameter (DIA) Options
Clariti 1 Day Multifocal contact lenses are manufactured with a diameter of 14.1mm. This diameter is designed to provide a comfortable and stable fit for a wide range of patients. The 14.1mm DIA is a key parameter in ensuring proper centration and minimizing potential issues like lens decentration or binding.
Practitioners should verify that the 14.1mm diameter is appropriate for each patient’s palpebral fissure and corneal size. While generally well-tolerated, individual anatomical variations may necessitate careful observation during the trial fitting phase. Assessing lid coverage and ensuring adequate peripheral corneal clearance are vital steps. A well-fitted diameter contributes significantly to both visual performance and overall wearing comfort throughout the day.
Water Content and Material
Clariti 1 Day Multifocal lenses are crafted from a silicone hydrogel material, specifically a copolymer of silicone and tetraethyleneglycol dimethacrylate (TEGDMA). This material composition results in a water content of 56%. The balance between silicone and water is crucial, offering both high oxygen permeability and comfortable hydration.
The 56% water content contributes to lens softness and wettability, enhancing wearing comfort, particularly for patients prone to dryness. Simultaneously, the silicone component allows for a high level of oxygen transmission to the cornea. This combination minimizes corneal hypoxia, promoting healthier eye physiology during extended wear. The material’s properties support consistent vision and all-day comfort for presbyopic patients.
Oxygen Permeability (Dk/t)
Clariti 1 Day Multifocal lenses boast an impressive oxygen permeability (Dk/t) value of 86. This high Dk/t is a significant advantage, facilitating a substantial flow of oxygen to the cornea, even during all-day wear. Silicone hydrogel materials are known for their superior oxygen transmissibility compared to traditional hydrogel lenses.
Maintaining adequate corneal oxygenation is vital for ocular health, reducing the risk of hypoxia-related complications like corneal swelling and neovascularization. The 86 Dk/t value ensures that the cornea receives sufficient oxygen, promoting comfort and minimizing potential adverse effects. This makes Clariti 1 Day Multifocal a suitable option for patients who may benefit from a lens prioritizing corneal health and extended wearing times.
Patient Assessment and Selection
Thorough assessment, including refraction and ocular dominance, is crucial for successful Clariti 1 Day Multifocal fitting, ensuring optimal vision correction and comfort.
Determining Ocular Dominance
Establishing ocular dominance is a vital step prior to Clariti 1 Day Multifocal lens fitting, influencing ADD power distribution and overall visual performance. The commonly recommended method involves the 1.00D blur technique. This simple test requires the patient to fixate on a distant target while a +1.00D lens is briefly placed over one eye.
The eye that experiences blurring is typically considered the non-dominant eye. Repeat this process several times, alternating eyes, to confirm consistency. Accurate determination helps in selecting the appropriate ADD power for each lens, maximizing near and intermediate vision clarity. Document the findings clearly in the patient’s record, as it directly impacts the fitting success and patient satisfaction with the multifocal contact lenses.
Spectacle Prescription Analysis
Thorough spectacle prescription analysis is fundamental for successful Clariti 1 Day Multifocal fitting. Begin with an up-to-date refraction, ideally within the last year, ensuring accuracy. Pay close attention to the distance prescription, including sphere, cylinder, and axis. Crucially, determine the addition power (ADD) prescribed for near vision, as this forms the basis for initial lens selection.
Carefully review any existing bifocal or progressive addition lens history, noting patient preferences and complaints; Consider vertex distance corrections, especially with higher prescriptions. A stable prescription is ideal, but minor changes should be carefully evaluated. Accurate prescription data minimizes refitting and maximizes the likelihood of a comfortable and effective multifocal contact lens experience for the patient.
Spherical Equivalent Calculation
Calculating the spherical equivalent (SE) is a vital step in the Clariti 1 Day Multifocal fitting process. The SE simplifies the prescription for initial lens selection, particularly when considering multifocal designs. It’s determined by adding half of the cylinder power to the sphere power: SE = Sphere + (Cylinder / 2). This value represents the overall refractive power of the eye.
Accurate SE calculation is crucial for determining the appropriate ADD power. The SE, corrected for vertex distance, guides the initial trial lens selection. Remember to calculate the SE for each eye individually. This ensures a balanced and comfortable vision correction. Utilizing the correct SE facilitates a more precise and efficient fitting, ultimately leading to improved patient satisfaction with their multifocal contact lenses.
Fitting Process
Initiate the fitting by carefully selecting the appropriate ADD power – LOW (up to +2.25D) or HIGH (from +2.25D to +3.00D) – and proceed with trial lenses.
ADD Power Selection (LOW vs. HIGH)
Determining the correct ADD power is crucial for successful Clariti 1 Day Multifocal lens fitting. The selection hinges primarily on the patient’s spectacle ADD power. Generally, a LOW ADD power is indicated for additions up to +2.25 diopters. This caters to patients needing mild near vision correction, often experiencing early stages of presbyopia.
Conversely, a HIGH ADD power is recommended for additions ranging from +2.25D to +3.00D. These patients typically require more substantial near correction, indicating a more progressed presbyopic state. Accurate assessment of the patient’s visual needs and spectacle prescription is paramount. Consider lifestyle factors; those with extensive near work may benefit from a slightly higher ADD power within the recommended range to optimize comfort and clarity at intermediate distances. Careful consideration ensures optimal visual performance.
Trial Lens Fitting
Initiating the trial lens fitting involves selecting parameters based on the patient’s refraction and corneal curvature. Begin with a spherical equivalent refraction, corrected for vertex distance, and the determined ADD power (LOW or HIGH). Dispense a trial pair of Clariti 1 Day Multifocal lenses, ensuring the base curve is 8.6mm and diameter is 14.1mm for most patients.
Instruct the patient to wear the lenses for a full day, engaging in their typical daily activities. Emphasize the importance of reporting any discomfort or visual disturbances. Following the trial period, a comprehensive follow-up assessment is essential. Gather feedback regarding distance, intermediate, and near vision clarity. This subjective response, combined with objective measurements, will guide any necessary adjustments to the lens parameters or ADD power.
Refraction Over Trial Lenses
Performing refraction over trial lenses is crucial for fine-tuning the prescription and optimizing visual acuity. After the patient has worn the Clariti 1 Day Multifocal lenses for a day, conduct a thorough refraction. Start with distance vision, then assess intermediate and near vision, noting any discrepancies.
Utilize both subjective and objective techniques to refine the spherical, cylindrical, and ADD power. Pay close attention to the patient’s responses regarding clarity and comfort at each distance. Small adjustments to the ADD power (0.25D increments) can significantly impact near and intermediate vision. Document all refraction findings and compare them to the initial prescription to determine the optimal lens parameters for the patient’s visual needs and lifestyle.
Troubleshooting and Adjustments
Addressing vision issues requires careful assessment; adjustments to ADD power or lens parameters may be needed to resolve distance, intermediate, or near vision complaints.
Addressing Distance Vision Issues
If patients report blurry distance vision with Clariti 1 Day Multifocal lenses, several factors should be considered. First, verify the spectacle refraction is accurate and up-to-date, correcting for vertex distance. A slight under-minus or under-plus refraction can contribute to distance blur. Next, confirm the correct base curve (BC) and diameter (DIA) were selected during the initial fitting.
If the BC is too flat, it can induce distance blur, while a BC that is too steep may cause excessive binding and discomfort. Consider reducing the ADD power, particularly if the initial selection was on the higher end (above +2.25D). A trial lens exchange with a lower ADD value can help determine if this resolves the issue. Additionally, ensure proper lens centration; decentration can also affect distance acuity. Finally, rule out any ocular surface disease or corneal irregularities that might be contributing to the visual disturbance.
Correcting Near Vision Complaints
When patients experience blurry near vision while wearing Clariti 1 Day Multifocal lenses, a systematic approach is crucial. Begin by confirming the patient’s near add power is accurate and appropriate for their age and visual demands. If the initial ADD power was LOW (≤ +2.25D), consider increasing it incrementally during a trial lens exchange. Conversely, if a HIGH ADD power was initially selected (> +2.25D), a slight reduction might be beneficial.
Evaluate lens centration and fit; a poorly centered lens can compromise near vision. Ensure the base curve (BC) is appropriate – a steeper BC may enhance near acuity. Also, assess the patient’s reading distance and posture. Finally, rule out accommodative spasm or other binocular vision anomalies that could contribute to near vision difficulties. Thorough refraction over trial lenses is key to optimal correction.
Managing Intermediate Vision
Achieving comfortable intermediate vision with Clariti 1 Day Multifocal lenses often requires careful ADD power selection and patient counseling. Many individuals need clear vision at intermediate distances for computer work or driving. If initial fitting prioritizes distance and near, intermediate vision may be compromised. Consider a slight adjustment to the ADD power – sometimes a small increase or decrease can significantly improve intermediate clarity.
Encourage patients to report their experiences at various distances. A trial lens exchange, focusing on intermediate tasks, is invaluable. Assess the patient’s working distance and ensure proper ergonomics. Remind them that adaptation may be necessary, and consistent wear will optimize visual performance. Proper lens care and hygiene are also vital for consistent vision.
Additional Considerations
Clariti 1 Day Multifocal lenses are suitable for mild astigmatism up to -2.00D, offering a convenient option for many presbyopic patients seeking daily disposable comfort.
Patients with Astigmatism
Clariti 1 Day Multifocal lenses demonstrate effectiveness in managing low levels of astigmatism concurrently with presbyopia, simplifying vision correction for many individuals. Specifically, these lenses can correct astigmatism up to -2.00 diopters without significantly compromising visual acuity. However, it’s crucial to assess the impact of astigmatism on overall vision quality during the fitting process.
For patients with higher astigmatic error, a separate toric lens fitting might be necessary to achieve optimal visual performance. Careful refraction and trial lens evaluation are essential to determine if the Clariti 1 Day Multifocal adequately addresses both the presbyopia and astigmatism. Consider the patient’s visual demands and lifestyle when making the final lens selection, prioritizing clear and comfortable vision at all distances.
Lens Care and Hygiene
Clariti 1 Day Multifocal lenses, being daily disposables, require minimal care, significantly reducing the risk of deposit buildup and infection. However, proper handling and hygiene are still paramount for maintaining eye health. Patients should always wash and thoroughly dry their hands before handling lenses, avoiding the use of lotions or oily products.
Never reuse these single-use lenses, as their performance and comfort diminish with extended wear. Instruct patients to remove lenses before swimming or showering to prevent contamination. Emphasize the importance of adhering to the prescribed wearing schedule and promptly removing lenses if any discomfort, redness, or blurred vision occurs. Regular eye examinations are crucial for monitoring ocular health and ensuring continued lens suitability.
Rebate and Trial Information
CooperVision frequently offers attractive rebates and trial opportunities for Clariti 1 Day Multifocal lenses, incentivizing patients to experience the benefits firsthand. Practitioners can access current rebate details and trial lens programs through the CooperVision website or their dedicated professional services representatives. These programs often include mail-in rebates for new wearers, reducing the initial cost of adoption.
Trial lenses are invaluable for confirming fit and patient satisfaction before a full annual supply is ordered. Encourage patients to participate in trial programs to assess vision correction and comfort. Information regarding available rebates and trial lens availability changes periodically, so staying updated through official CooperVision channels is essential for maximizing patient access and satisfaction.