Effect of against-the-rule myopic astigmatism monovision in bilateral pseudophakia

Not Applicable

Recruiting

• Conditions: bilateral pseudophakiamonovision; against the rule astigmatism; monovision; visual acuities; near stereopsis; thai text reading speed

• Registration Number: TCTR20120000016
• Lead Sponsor: Ophthalmology unit, Mettapracharak Hospital

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2012-10-29
• Study Completion: 2013-06-01
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

Post-operative duration of the recent cataract surgery > 3 mo
Uneventful cataract surgery
Best corrected distance visual acuity better or equal to 20/40 in either eye

Exclusion Criteria

Intolerance to glasses and trial frames set
Unstable IOLs
Distort pupil or Non-reactive pupil, Pupil size asymmetry ≥ 1 mm
Strabismus that prevent accommodation
Optical media opacity e.g., corneal scar, PCO
Other disease affecting corneal regular astigmatism > 3 diopter, irregular astigmatism, e.g., keratoconus, pellucid marginal degeneration, post-penetrating keratoplasty, advanced pterygium
Any previous refractive surgery including LASIK, PRK
Ocular surface disease that may affect the visual acuity
Any retinal diseases
Thai illegibility
Saccade disability
Oblique astigmatism of manifested refractive error

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Visual acuities at distant, intermediate, near distance Nov 2012-Jun 2013 logMAR chart at different distances representative of distant, intermediate and near distances,Near stereopsis Nov 2012-Jun 2013 Vectographic Titmus / Second of arcs,Average Thai-text reading speed Nov 2012-Jun 2013 2 sets of Thai-texts / characters per min

Secondary Outcome Measures

Name	Time	Method
Patient satifaction nov 2012-Jun 2013 categorical scale of Satisfied/Acceptable/Dissatified