Cycloplegia and Refractive Status

Not Applicable

Completed

• Conditions: Cycloplegia
• Interventions: Drug: Cycloplegics

• Registration Number: NCT05585736
• Lead Sponsor: Al-Azhar University

Brief Summary

Myopia is a public health problem, affecting the general population worldwide. The common modalities for correcting myopia include spectacles, contact lenses, and surgical procedures. Cycloplegic refraction is considered the gold standard for measuring refractive errors, especially in children. It has been well-established that generally myopia could be overestimated and hyperopia be underestimated if refraction was performed without cycloplegia.

Detailed Description

Not available

Study Timeline

• Study Start: 2021-09-20
• Primary Completion: 2022-09-01
• Study Completion: 2022-09-15
• Study First Submitted: 2022-09-17
• Status Verified: 2022-10
• Study First Submitted QC: 2022-10-14
• Last Update Submitted: 2022-10-14
• Study First Posted: 2022-10-19
• Last Update Posted: 2022-10-19

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 388

Inclusion Criteria

• Myopia or Hyperopia or compound myopic astigmatism.
• Normal intra ocular pressure (IOP≤21 mmHg.
• Age > 2 years and < 10 years

Exclusion Criteria

• Unwilling to participate in the study.
• Previous ocular surgery
• Any diagnosed ocular disease
• History of ocular trauma
• Irregular astigmatism on corneal topography.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Cycloplegic refraction	Cycloplegics	All refractions were measured before and after cycloplegic addition to the eye.

Primary Outcome Measures

Name	Time	Method
cylinder of the eye	Baseline	This indicates the amount of lens power for astigmatism and represents the difference in the greatest and weakest powers of the eye, usually separated by 90 degrees. If nothing appears in this column, either you have no astigmatism, or your astigmatism is so slight that it is not necessary to correct it with your eyeglass lenses. The number in the cylinder column may be preceded with a minus sign (for the correction of nearsighted astigmatism) or a plus sign (for farsighted astigmatism). Cylinder power always follows sphere power in an eyeglass prescription. It is measured by Autorefractor.
Sphere of the eye	Immediate after 30 minutes of cycloplegic addition	It means that the correction for nearsightedness or farsightedness is spherical, equal in all meridians of the eye. This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. If the number appearing under this heading has a minus sign (-), you are nearsighted; if the number has a plus sign (+) or is not preceded by a plus sign or a minus sign, you are farsighted. It is measured by Auto-refractor
cylinder	Immediate after 30 minutes after cycloplegia	This indicates the amount of lens power for astigmatism and represents the difference in the greatest and weakest powers of the eye, usually separated by 90 degrees. If nothing appears in this column, either you have no astigmatism, or your astigmatism is so slight that it is not necessary to correct it with your eyeglass lenses. The number in the cylinder column may be preceded with a minus sign (for the correction of nearsighted astigmatism) or a plus sign (for farsighted astigmatism). Cylinder power always follows sphere power in an eyeglass prescription. It is measured by Autorefractor

Trial Locations

Locations (1)

Ehab tharwat; 🇪🇬 Damieta, New Damietta, Egypt