Clinical trials: Refractive Surgery
Cataract, Myopia
Measurement of Antioxidant Activity on Postoperative Inflammation in Patients Undergoing Ophthalmic Surgery
This trial hypothesized that novel laser refractive surgery techniques (PRK, LASIK, SMILE) or laser-assisted cataract surgery (FLACAS) could suppress postoperative inflammation and improve recovery in patients by reducing…
- Trial name
- NCT05905237
- Testing
- Cataract surgery, Femtosecond-LASIK, SMILE
- Where
- 2 sites in Taiwan
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Keratoconus
Effects of Corneal Anatomical Match Between Donor and Recipient During DALK Surgery on Final Visual and Refractive Outcomes in Patients With KCN
Patients with KCN who undergo cornea transplantation divided to 2 groups: Group1: After mechanical trephination, horizontal meridian of donor's cornea sutured to horizontal meridian of recipient cornea Group 2: After mechanical…
- Trial name
- NCT04130334
- Testing
- After mechanical trephination, horizontal meridian of donor's cornea sutured to horizontal meridian of recipient cornea, : After mechanical trephination, horizontal meridian of donor's cornea sutured to vertical meridian of recipient cornea
- Where
- Iran
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
Dry Eye
Clinical Characteristics of Patients Developing Chronic Dry Eye After Refractive Surgery
In recent years, many scholars have studied the ocular surface damage of patients with dry eye disease（DED）after FS-LASIK, but there has been a lack of comprehensive observation and research on the relationship and difference…
- Trial name
- NCT05600985
- Testing
- FS-LASIK
- Where
- China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Tomography
UNITY DX Cornea Study
The purpose of this study is to validate the clinical measurement performance of an investigational biometer. Subjects will undergo multiple measurements of the eye, and the agreement, repeatability, and reproducibility of…
- Trial name
- NCT07768735
- Testing
- UNITY DX, ANTERION
- Where
- United States
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Refractive Error
Evaluation of a Surgical Microscope Mounted Autorefractor When Used on Patients Lying in a Supine Position
The purpose of this study is to evaluate the accuracy and repeatability of an individually validated prototype autorefractor designed to be mounted on a surgical microscope.
- Trial name
- NCT01827748
- Testing
- Intraoperative Autorefractor IAR-1, Hartmann-Shack Auto Refractor
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Adventus Technology
Fuch's Dystrophy, Corneal Disorders
Novel Diagnostics With Optical Coherence Tomography: Imaging the Anterior Eye
The purpose of this research is to evaluate the optical coherence tomography (OCT), to image diseases of the eye. OCT may be useful for the early diagnosis and monitoring of a variety of diseases involving the eye, such as Fuch's…
- Conditions
- Fuch's Dystrophy, Corneal Disorders, Prior Surgery
- Trial name
- NCT00343473
- Where
- 2 sites in United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- NYU Langone Health