Correlation between corneal biomechanics and corneal astigmatism change following suture removal in penetrating keratoplasty patients

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20151005002

Enrollment

Registered

2015-10-05

Start date

2015-05-04

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Factors affecting astigmatism change after suture removal in post&#45

Interventions

Post&#45

penetrating keratoplasty patients at least 6 months with significant corneal astigmatism and need suture removal for visual improvement

Other

penetrating keratoplasty patients

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Post-penetrating keratoplasty at least 6 months Uncorrected visual acuity <20/40 Corneal suture by single interrupted technique Suture retention in steep axis

Exclusion criteria

Exclusion criteria: Graft failure Active ocular infection Ocular surface disorders Irreproducible corneal biomechanics and corneal astigmatism measurement

Design outcomes

Primary

Measure	Time frame
Corneal astigmatism Day 1 and 6 weeks after suture removal Corneal topography machine (Orbscan II)	—

Secondary

Measure	Time frame
Corneal biomechanics Before suture removal Corneal biomechanics macchine (Corvis ST)	—

Countries

Thailand

Contacts

Public ContactVannarut Satitpitakul

Chulalongkorn University

vannaruts@gmail.com0894959022

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026