UnknownNot Applicable

Comparative Effect of Cylindrical Lenses Verses Spherical Equilient on Contrast Sensitivity

Pakistan68 participantsStarted 2023-10-01

Plain-language summary

the concept of spherical equivalent plays a pivotal role in simplifying the prescription and enhancing communication between eye care professionals and patients. The spherical equivalent is a calculated value that condenses the spherical and cylindrical components into a single power.

Who can participate

Age range

18 Years – 35 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Patients within 18 to 35 years will be included. * Both genders will be included. * Patients having astigmatism will be included. * Patients having 6/6 corrected vision will be included. * Eyes having no other ocular pathology will be included. * Patients having no history of ocular surgery or corneal scar will be included. Exclusion Criteria: * i. Eyes having any ocular pathology will be excluded. * Patients with corneal suture will be excluded. * Those using contact lenses instead of spectacles for vision correction will be excluded. * Participants with a history of eye surgery within the past year will be excluded.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Contrast sensitivity

Timeframe: 12 Months

Trial details

NCT IDNCT06407336

SponsorSuperior University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2024-03-01

View on ClinicalTrials.gov More Low Vision Aids trials

Who can participate

Age range

18 Years – 35 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.