Dry Eye Syndromes, Cataract
Conditions
Keywords
Dry eye, Cataract, Visual acuity, Quality of life, Eye drops, Dry eye symptomatology, N-acetylcarnosine, Vaccinium myrtillus, Chondroitin sulfate, Chondroitin sulphate, N-Acetylcharnosine
Brief summary
Clinical trial with medical devices, post-authorization, parallel, single-blind, randomized, comparative, prospective to study how afects the quality of life the use of ocular eye drops on patients with dry eye symptomatology and age-related loss of visual acuity. Secondary purposes: efects on the dry eye symptomatology, efect on visual acuity and treatment adherence.
Interventions
DEVICEVis Glyc Neo
1 drop in each eye, three times a day.
1 drop in each eye, three times a day.
Sponsors
OPKO Health, Inc.
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)
Masking description
Single-blinded: The physician performing the recruiting will be different and cannot be related to the investigator evaluating the follow-up.
Eligibility
Sex/Gender
ALL
Age
50 Years to 70 Years
Healthy volunteers
Yes
Inclusion criteria
* Subjects between the ages of 50 and 70. * Subjects with initial or slight changes characteristic of cataracts (grade 1-3 according to LOCS III classification). * Subjects with dry eye symptoms. * Confirmation of senile cataract diagnosis according to medical history and clinical observations, bilateral. * Visual acuity equal to or greater than (0.6) in both eyes (with the best correction). * Cataracts without the need for surgical intervention in the near future (1 year) based on the visual needs of the patient and ocular symptomatology. * Subjects that have not undergone cataract surgery. * Cases that do not accept surgery (weak corneas, high degree of myopia, sensitivity to light, severe dryness of the eyes or by their own decision). * Subjects who agree to sign the IC (Informed Consent).
Exclusion criteria
* Subjects with eye diseases such as glaucoma or diabetic retinopathy. * Previous laser photocoagulation of the retina. * Previous corneal or anterior segment surgery or previous corneal scars that may interfere with visualization or photographs. * Presence of mature cataracts (grade 4-5/6 according to LOCS III classification) in both eyes. * Candidates for surgery in the following year. * Subjects with monocular aphakia (absence of crystalline lens) or secondary cataracts (associated with steroid use, local or total irradiation, local inflammation or degenerative processes, ocular trauma). * Subjects with known hypersensitivity to any component of ophthalmic treatment. * Subjects treated with drugs that may interfere with the evolution of the disease under study. * Subjects who wear contact lenses. * Pregnant women. * Breastfeeding women. * Subjects who have participated in another clinical trial within the last 30 days. * Subjects with linguistic or psychological incapacity to understand and sign the CI.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in quality of visual life: NEI VFQ-25 questionnaire | Change from baseline quality of life at 6 months | In patients with dry eye symptomatology and age-related loss of visual acuity. Assessed using NEI VFQ-25 questionnaire. It is a questionnaire with 25 questions. Its format is divided into 4 subscales: visual function, difficulty with activities, driving a car and responding to vision problems. It consists of a base of 25 questions (each with five or six levels of response and scoring ranges) addressed to vision, representing 11 domains, elements or items related to health; 1) general vision, 2) eye pain, 3) near activities, 4) distance activities, 5) social functioning, 6) mental health, 7) role difficulties or limitations, 8) dependence, 9) driving, 10) color vision and 11) peripheral vision. Each domain receives an evaluation from 0 to 100; the high evaluation represents changes in visual functioning, where 0 is the lowest and 100 is the best possible. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Visual Acuity Evaluation I | 0, 90, 180 days | To assess the age-related visual acuity in patients. \- The CSV-1000E contrast sensitivity test. This test provides for four (4) rows of sine-wave gratings. These gratings test the spatial frequencies of 3, 6, 12 and 18 cycles/degree (CPD). The levels of contrast are 1 to 8. The higher the contrast or modulation, the greater the difference in luminance and the better the object will be distinguished from the background. |
| Visual Acuity Evaluation II | 0, 90, 180 days | To assess the age-related visual acuity in patients. \- LOCS III classification of cataract grade using images obtained by ophthalmoscopy with slit lamp, which allows the study of the anterior segment of the patient's eye. It consists of six slit lamp images to evaluate core color (NC) and opalescence (NO); five backlit images to evaluate cortical cataract (C); and five backlit images to evaluate posterior subcapsular cataract (P). The severity of the cataract is classified on a decimal scale, and the patterns have regularly separated intervals on a decimal scale. |
| Visual Acuity Evaluation III | 0, 90, 180 days | To assess the age-related visual acuity in patients. \- Visual acuity test with the best correction in each eye using Snellen E-screens, measured in decimal system and MAR logarithm. Level of vision with respect to the row in Snellen's graph, which the rows consist of 1 to 11. The lower the row (greater numbers) the patient can distinguish, the greater the visual acuity he will have. |
| Dry eye symptomatology Evaluation I | 0, 90, 180 days | Schirmer I test (without anesthesia): to determine the dryness of the eye. It consists of placing a thin strip of paper at the bottom of the conjunctival sac and before this foreign body see the patient's tear production capacity (measuring the wet area in mm). The less mm the less tear production capacity. |
| Change in quality of visual life: NEI VFQ-25 questionnaire | 0, 30, 90, 180 days | In patients with dry eye symptomatology and age-related loss of visual acuity. Assessed using NEI VFQ-25 questionnaire. It is a questionnaire with 25 questions. Its format is divided into 4 subscales: visual function, difficulty with activities, driving a car and responding to vision problems. It consists of a base of 25 questions (each with five or six levels of response and scoring ranges) addressed to vision, representing 11 domains, elements or items related to health; 1) general vision, 2) eye pain, 3) near activities, 4) distance activities, 5) social functioning, 6) mental health, 7) role difficulties or limitations, 8) dependence, 9) driving, 10) color vision and 11) peripheral vision. Each domain receives an evaluation from 0 to 100; the high evaluation represents changes in visual functioning, where 0 is the lowest and 100 is the best possible. |
| Dry eye symptomatology Evaluation III | 0 and 180 days | The OSDI Test (ocular surface disease index) is a simple test created to establish the severity and classification of dry eye according to its symptoms. It is based on 12 different questions about situations related to patient symptomatology. A score of 100 corresponds to a total disability (answer At all times to all questions answered), while a score of 0 corresponds to no disability. |
| Treatment adherence | 30, 90 and 180 days | Ask patients about the daily administration of the treatment according to the protocol. |
| Adverse events | 30, 90 and 180 days | Number of participants with Adverse events and types of adverse events. |
| Dry eye symptomatology Evaluation II | 0, 90, 180 days | \- Fluorescein staining test: to assess dryness of the eye. Fluorescein is instilled in both conjunctival sacs. Absence of staining indicates integrity of the corneal epithelium. There are degrees of fluorescein staining from 0 to 5. The highest the worst results. |
Countries
Spain
Outcome results
None listed