Keratoconus
Conditions
Interventions
Frustration period group:None
Clinical stage group:None
Sponsors
The People's Hospital of Guangxi Zhuang Autonomous Region
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Conform to the existing ABCD criteria for the diagnosis of blunt keratoconus ( radius of anterior curvature > 7.25mm in the range of 3mm, diopter 5.9mm; corneal thinnest point thickness > 490microns; best corrected visual acuity = 1.0 ).
Exclusion criteria
Exclusion criteria: (1)Patients who had undergone orthokeratology and corneal surgery ; (2)Other causes of corneal edema, thinning, scarring of eye diseases, and systemic diseases.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Keratoconus ABCD classification in Pentacam;Count of corneal basal cell layer;Nerve structure of Bowman 's membrane;Cell count of anterior and posterior stroma;Cell count of corneal endothelial cells ;TKC classification in Pentacam;Cell density of corneal basal cell layer;Cell density of anterior and posterior stroma; | — |
Secondary
| Measure | Time frame |
|---|---|
| Corneal curvature;Corneal thickness;Anterior and posterior corneal height;Corneal expansion index; | — |
Countries
China
Contacts
Public ContactQi Chen
The People's Hospital of Guangxi Zhuang Autonomous Region
Outcome results
None listed