Comparison Between Myopia Versus Hypermetropia With Progressive Addition Lenses in Computer Users

This study examines how myopia (nearsightedness) and hyperopia (farsightedness) affect the use of progressive addition lenses (PALs) for computer users. PALs offer a range of vision correction within one lens, ideal for presbyopia (age-related near focusing difficulty). We'll compare visual comfort, eye strain, and user preference for PALs between myopic and hyperopic individuals while focusing on computer screens.

Study Overview

• Status: Active, not recruiting
• Conditions: Myopia; Hypermetropia
• Intervention / Treatment: Behavioral: Myopia; Other: Hypermetropia

Detailed Description

The research will also consider if general-purpose PALs differ from computer-specific PALs in these user groups, and how presbyopia progression might influence PAL effectiveness for each condition. This information can help eye doctors recommend the most suitable PAL design for computer users with myopia or hyperopia.

• Study Type: Interventional
• Enrollment (Actual): 64
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Pakistan
  • Punjab
    • Lahore, Punjab, Pakistan
      • The Keratoconus center, Eye 2 Eye Optometrists, 13 D valencia housing society

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• The age of Participant will be 40 to 55 years
• Participant diagnosed with myopia having -0.50 to -3.00DS and astigmatism up to -0.75DC
• Patient diagnosed with Hypermetropia having +050 to +3.00 DS and Astigmatism up to +0.75DC
• Presbyopia addition will range from +1.00 to +2.50 DS
• Participants who have worked more than 4 hours on the computer screen.
• Participants who will be already progressive users and first-time users.
• Patients with no Ocular disease.

Exclusion Criteria:

• Participants with Pre Presbyopia and above 55 years of age
• Participants with significant ocular disease.
• Participants with uncontrolled diabetes and hypertension
• Participants who will not be willing for PAL,s
• Participants with more than 0.75 astigmatism
• Participants with known allergies and sensitivity.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Health Services Research
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Myopia	Behavioral: Myopia; Participants in this arm would receive progressive addition lenses specifically designed to correct myopia. These lenses would typically have a prescription for correcting nearsightedness (myopia) in addition to any other vision corrections needed, such as astigmatism correction and presbyopia. The participants would wear these lenses while using computers according to the study protocol.
Other: Hypermetropia	Other: Hypermetropia; Participants in this arm would receive progressive addition lenses specifically designed to correct hypermetropia. These lenses would typically have a prescription for correcting farsightedness (hypermetropia) in addition to any other vision corrections needed, such as astigmatism correction and presbyopia. The participants would wear these lenses while using computers according to the study protocol.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Visual Acuity	Assessing visual acuity at different distances, including distance vision (for activities such as viewing the computer screen) and near vision (for reading text on the screen), while wearing progressive addition lenses.	12 Months
Subjective Visual Comfort	Using standardized questionnaires or subjective ratings from participants to assess their comfort level while using computers with progressive addition lenses.	12 months
Visual Fatigue	Assessing the level of visual fatigue experienced by participants during or after prolonged computer use with the progressive addition lenses. This could involve subjective ratings of eye strain, tiredness, or discomfort.	12 months

Collaborators and Investigators

• Sponsor: Superior University

Study record dates

Study Major Dates

• Study Start (Actual): November 1, 2023
• Primary Completion (Actual): June 1, 2024
• Study Completion (Estimated): October 30, 2024

Study Registration Dates

• First Submitted: June 26, 2024
• First Submitted That Met QC Criteria: June 26, 2024
• First Posted (Actual): July 3, 2024

Study Record Updates

• Last Update Posted (Actual): July 3, 2024
• Last Update Submitted That Met QC Criteria: June 26, 2024
• Last Verified: June 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Eye Diseases; Refractive Errors; Myopia; Hyperopia
• Other Study ID Numbers: MSRSW/Batch-Fall22/732

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No