Vision and quality of life after corneal tissue surgery for keratoconus
Measures vision and daily life after CTAK surgery in adults with corneal ectasia.
Key facts
- Who runs it
- Stanford University
- Where
- Palo Alto, United StatesSee the site
- Trial code
- Registry title
- Outcomes of CTAK Surgery
- Status
- Not yet recruiting
- Phase
- Phase 4
- People taking part
- 100 people, planned
- Started
- May 2026
- Expected to end
- Jan 2031
- Type of study
- Interventional
- Treatments tested
- Questionnaire and Physical Exam
- Record updated
- 24 April 2026
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with keratoconus or corneal ectasia (a thinning and bulging of the clear front layer of the eye) who are having CTAK surgery. Participants fill in questionnaires about their vision and quality of life before and after surgery.
- Age
- 18 Years to 85 Years
- Sex
- All sexes can join
- Disease stage
- Corneal ectasia and keratoconus
Main reasons for not taking part
- A cornea that is too thin
- Major scarring of the cornea
The registry criteria, word for word
Show all 3 criteriaShow less
Who can take part
- Corneal Ectasia and Keratoconus
Who cannot take part
- Excessively thin cornea
- Significant corneal scarring
Check if you might fit
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 85 years old?
Where in United States
- Byers Eye Institute at StanfordPalo Alto, United StatesContact: Edward Manche, MDNot yet recruiting
About the trial
What the trial wants to find out
Measuring quality of vision and quality of life outcomes using a validated questionnaire in participants undergoing CTAK surgery for corneal ectasia
The group in the trial
- Patient reported outcomes after CTAK surgeryOther group
All subjects will complete preoperative and postoperative questionnaires
Treatment: Questionnaire and Physical Exam
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Outcomes of Corneal Tissue Addition for Keratoplasty (CTAK) in Patients With Ectatic Corneas
- Plain-language title
- Vision and quality of life after corneal tissue surgery for keratoconusGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 15 November 2026.
- Fit questions
- Built from NCT07474870, who can take part
- Record updated
- 24 April 2026