The effect of pterygium excision on contrast sensitivity and Spherical aberratio

Phase 1

Completed

• Conditions: primary nasal pterygium Contrast sensitivity Spherical aberration; primary nasal pterygium; Contrast sensitivity; Spherical aberration

• Registration Number: TCTR20150224001
• Lead Sponsor: Prince of Songkla university

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2015-02-24
• Study Completion: 2015-03-31
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 35

Inclusion Criteria

1. Age > 20 years old
2. Primary nasal pterygium which involve cornea
3. Pterygium excision with conjunctival autograft

Exclusion Criteria

1. History of anterior segment surgery
2. History of ocular trauma
3. Contact lens wear
4. Severe blepharitis
5. Cornea disease Ex keratoconus
6. Cornea scar
7. Retina disease
8. Glaucoma disease
9. Bihead pterygium
10. Recurrent pterygium

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Contrast sensitivity Pre-operation, post operation 1 month, post operation 3 month Cycle per degree

Secondary Outcome Measures

Name	Time	Method
Spherical aberration Pre-operation, post operation 1 month, post operation 3 month micrometer