The intrastromal corneal ring in penetrating keratoplasty: a prospective randomized study.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00001030

Enrollment

Registered

2011-12-16

Start date

2004-10-21

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

H15-H22

Interventions

Group 1: Implantation of the corneal ring at penetrating keratoplasty Group 2: Penetrating keratoplasty without corneal ring

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Penetrating keratoplasty

Exclusion criteria

Exclusion criteria: Anomalies after corneal refractive surgery or with systemic diseases predisposing to corneal melting (connective tissue disease, morbus Wegener, and rheumatoid arthritis), eczema, oculomucocutaneous syndromes, or allergies.

Design outcomes

Primary

Measure	Time frame
Corneal astigmatism from video keratography at end of follow up	—

Secondary

Measure	Time frame
Visual acuity	—

Countries

Germany

Contacts

Public ContactThomas Reinhard

Universitäts Augenklinik

thomas.reinhard@uniklinik-freiburg.de0761-270-40010

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026