Study of progressive glasses
Presbyopia, known as "tired eyesight," affects the ability to see up close in individuals over 40 years old. Progressive lenses emerge as a solution, combining corrections for various distances in a design without visible lines, making them more aesthetically pleasing than bifocals. However, adapting to them can be challenging. Our study uses a specialized questionnaire to analyze the experience and effectiveness of these lenses, with the hypothesis that they offer a significant improvement in the visual quality of presbyopes. We aim to understand factors such as adaptation, satisfaction, and visual health.
Objetivos
Main Objective
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Study the impact of progressive lenses on the quality of life of presbyopes.
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Secondary Objectives
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Analyze the adaptation to the use of progressive lenses and determine the improvement in visual acuity.
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Evaluate user satisfaction.
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Provide valuable information that contributes to improving visual health and comfort for people with presbyopia.
Metodology
Participants
Participant Selection: Adults over 40 years old and individuals requiring optical correction for presbyopia will be included. Those with a history of eye diseases affecting vision, recent ocular trauma, individuals with systemic diseases that affect quality of life or vision, and individuals currently using medications affecting visual function will be excluded.
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Visits
Initial Visit: Optical classification, progressive lens parameters [vertex distance, naso-pupillary distance, mounting height, panoramic angle, and pantoscopic angle], and demographic data [age, gender, phone number, etc.] will be collected. Completion of the quality of life questionnaire 7 using the tool validated by McAlinden et al.
Second Visit (4 weeks after the initial visit): CdV and CdV questionnaires will be conducted to evaluate lens adaptation and user satisfaction. The collected data will undergo thorough analysis using the R software, a robust tool for statistical analysis. Our approach will involve choosing appropriate statistical tests suited to data characteristics and aligned with our research hypotheses.
Statistical significance will be determined based on the widely accepted threshold of a p-value less than or equal to 0.05. This criterion ensures our findings are statistically significant and can be interpreted with confidence.
Instruments used
Optical classification, progressive lens parameters [vertex distance, naso-pupillary distance, mounting height, panoramic angle, and pantoscopic angle], and demographic data [age, gender, phone number, etc.] will be collected. Completion of the quality of life questionnaire 7 using the tool validated by McAlinden et al.
Collaborators
Dr. Terán is a professor and researcher at the Autonomous University of Sinaloa, specializing in vision sciences and physical-mathematics. With a background in Physics and Physical Optics, he has achieved the status of National Researcher Level 1 and collaborates with entities such as the World Council of Optometry and ALDOO. He is a member of ARVO and serves as an advisor for VOSH/International in Latin America. He has consulted for ophthalmic lens companies and reviews articles for prestigious journals. His recent book, "The Thief of Sleep," examines blue light and sleep.
Email: eteran@uas.edu.mx.
Contact
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