Effect of Artificial Tears on Ocular Biometry Parameters
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-60
SponsorHe Eye Hospital
About this trial
Due to the instability of the tear film, the biometry often needs to be done multiple times in a clinical environment. The high variability of both short-term and long-term repeatability in keratometry of dry eyes is well-known. Consequently, enhancing the condition of the eye surface in individuals with dry eyes will result in improved precision when choosing the power of intraocular lenses (IOLs). This prospective and before-and-after self-control study will recruit 100 patients.
Eligibility criteria
Qualifiers
None
Disqualifiers
The eyes cannot fixate on the fixation lamp (such as children, nystagmus diseases, severe low vision, inattention, etc.) and cannot act according to the user's instructions and sit in the front of the equipment (the forehead or lower song is injured so that it cannot be supported on the forehead / lower song bracket)
The eyes are cloudy with optical media (such as corneal opacity, central corneal scar, mature cataract, posterior chamber bag opacity, vitreous hemorrhage, etc.).
The eyelid is completely closed or too small (drooping, relaxation) resulting in complete or partial occlusion of the cornea
Just after contact measurement or examination, use a corneal local anesthesia solution. (IOL Master 700 should avoid using local anesthetic before all contact examinations)
Trial design
Treatments tested in this trial
- 0.1% sodium hyaluronate
Treatment groups
100 Participants
are divided into 2 treatment groupsLocations
Sponsors and collaborators
Source ClinicalTrials.gov