Rigid contact lens wearer
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Age 8 or above; 2) The power of binocular lens is within -5.00D (including -5.00D), the power of cylindrical lens is within 1.50D, and the best corrected visual acuity >= of primary refraction is 5.0; 3) Able and willing to comply with all treatments and follow-up; 4) Be able to understand the purpose of the trial, voluntarily participate and sign an informed consent form by the subject himself or his legal guardian
Exclusion criteria
Exclusion criteria: 1) Monocular meets the selection criteria; 2) Have systemic diseases that may affect the eyes, such as diabetes, Down syndrome, hyperthyroidism, rheumatoid arthritis, history of sinusitis within 2 years, or other diseases that the investigators believe cannot wear hard contact lenses; 3) Suffer from certain eye diseases that affect the wearing of hard contact lenses: such as acute or chronic eye diseases, spring catarrhal conjunctivitis, glaucoma, dry eye (BUT<5s), corneal abnormalities, etc.; 4) Patients with a history of allergy to contact lenses or contact lens care solutions; 5) Patients who are using or using drugs (immunosuppressants, glucocorticoids, ocular pressure lowering drugs, low-concentration atropine) that may cause dry eyes or affect vision and corneal curvature during the study; 6) Those who have a history of inner eye surgery; 7) Patients with abnormal intraocular pressure (normal intraocular pressure range is 10~21mmHg, and the difference in intraocular pressure between the two eyes should be <=5mmHg); 8) Those who participated in clinical trials of other drugs within 90 days before screening, and participated in clinical trials of other medical devices within 30 days; 9) Those who are pregnant, lactating or planning to become pregnant at the time of enrollment; 10) Those who cannot follow up as directed by the doctor; 11) Patients whose examination results indicate contraindications to wearing or who are not suitable for wearing hard contact lenses; 12) Other conditions in which the investigator determines that the patient is not suitable for inclusion.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| BCVA with contact lens;Sediment on the front surface of the lens;Sediment on the back surface of the lens; | — |
Countries
China
Contacts
Eye Hospital Affiliated to Wenzhou Medical University