View clinical trials related to Contact Lens Complication.
Filter by:This study aims to determine if Total30 lenses for astigmatism can be successfully fit in participants who are heavy digital device users.
To evaluate the short-term efficacy and safety of scleral contact lens in the clinical treatment of patients with irregular astigmatism after corneal transplantation by analyzing ocular parameters and ocular surface conditions of patients after corneal transplantation.
Determine if Total30 for Astigmatism contact lenses (CLs) provide a comfortable wearing experience all day. CL discomfort affects most CL wearers with discomfort consistently topping the reasons why established CL wearers drop out of CLs. In fact, studies have consistently found that the frequency of CL dropout is around 20% with this dropout frequency staying relatively stable over the past 20 plus years. This static frequency of CL dropout is surprising since there have been a number of dramatic soft CL innovations during this time frame (e.g., widely available daily disposable CLs, silicone hydrogel CL materials with high oxygen transmissibility, new CL surface coatings).
There are more than 140 million contact lens wearers in the world. However, contact lens use can cause discomfort symptoms in up to 50% of wearers. And these symptoms can lead to contact lens abandonment in 12-51% of symptomatic wearers. Contact lens discomfort is defined by the Tear Film & Ocular Surface Society (TFOS) as a condition characterized by episodic or persistent adverse ocular sensations related to contact lens wear, either with or without visual disturbance, resulting from reduced compatibility between the contact lens and the ocular environment, which can lead to decreased wearing time and discontinuation of contact lens wear. The most common cause of contact lens discontinuation is discomfort and dryness symptoms. This symptomatology is associated with visual acuity alterations, increased risk of ocular surface desiccation, or decreased contact lens wearing time. But the different signs found in contact lens wearers who present discomfort with contact lenses do not always correlate with the symptoms they report. In addition, different factors negatively impact contact lens discomfort such as low relative humidity environments. In order to alleviate contact lens discomfort, the first option chosen by professionals is fitting another contact lens with different replacement frequency or material. The second option is recommending the use of lubricants or moisturizers, and the third one is changing the maintenance system. The use of artificial tears is an effective way to improve contact lens discomfort, mainly by instilling them prior to contact lens insertion, since it provides the moisturizing factor that maintenance solutions lack. In addition, it improves comfort, visual quality, and reduces the production of deposits on the contact lens. The hypothesis of this clinical trial is that "Aquoral Lipo" artificial tears are more effective than control artificial tears to improve symptomatology in contact lens wearers with discomfort symptoms. The study will compare the effect of both "Aquoral Lipo" and control artificial tears under controlled normal and adverse environmental conditions.
CL discomfort is a complex phenomenon that has been defined by the Tear Film and Ocular Surface Society in their seminal report on contact lens (CL) discomfort as a condition that results in "episodic or persistent adverse ocular sensation related to lens wear, either with or without visual disturbance resulting from reduced compatibility between the CL and the environment, which can lead to decreased wearing time and discontinuation of CL wear." A recent review by Pucker and Tichenor found that CL discomfort was the top reason for established CL wears to cease wearing CLs. This same review alarmingly found that the frequency of CL dropout was about 20% across the many studies aimed at evaluating this condition, which is surprising given the introduction of better soft CL materials and daily disposable CLs over the past 20 plus years. Dailies Total1 (DT1), which is a relatively new daily disposable CL, is a commonly used trouble shooting CL for patients who have failed with other CLs because DT1 utilizes advanced material technology that is specifically aimed at improving CL comfort. While DT1 is commonly used in these struggling patients, the literature currently lacks a targeted study aimed at understanding the frequency of successfully refitting CL dropouts into this advanced CL. Thus, the purpose of this study is to determine the frequency that past CL wearers who failed because of dryness or CL discomfort who can comfortable wear DT1.
The purpose of this study is to map comfort over the full wear day in established, asymptomatic, soft CL wearers who are refit in Total30 Sphere CLs.
Technical advances in lenses are continuous and materials are improved. We provide a prospective longitudinal observational study evaluating the efficacy and safety of new EyeBrid Excel hybrid lenses (LCS) in the treatment of severe ametropia and for patients with corneal irregularities. This study should include 60 patients for a period of three months. The aim of this work is to assess the improvement in the best corrected visual acuity and the good tolerance of this lens.
The purpose of this prospective study is to assess the efficacy, safety and patient-reported outcomes of the Menicon Z Night orthokeratolgy contact lens for reducing myopia progression in children.
This study aims to analyze the changes of corneal nerve morphology and function in contact lens-related dry eye(CLADE) patients and further discuss the role of corneal nerve in the genesis and development of CLADE.
HydroEye® is a dietary supplement that contains both EPA and DHA, as well as GLA and ALA in the form of black currant seed oil. It also has vitamins A, E, C, B6, and magnesium, many of which are involved in fatty acid metabolism. In 2013, Sheppard et al. tested HydroEye® in dry eye patients who were not contact lens wearers and found that symptoms and corneal smoothness improved in response to HydroEye® supplementation. To date, HydroEye® has not been assessed in patients with contact lens discomfort; therefore, the purpose of this clinical trial is to determine the efficacy of HydroEye® as a treatment for contact lens discomfort.