Effect of Artificial Tears on Ocular Biometry Parameters
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.
Effects of 3% Diquafosol on Tear Film and Vision-related Quality of Life in Orthokeratology Lens Related Dry Eye
Investigate the effect of 3% Diquafosol on tear film and vision-related quality of life in dry eye patients wearing orthokeratology lenses(OK lens), and to provide reference for clinical treatment.This prospective, open label study will include 60 eyes of 30 OK lens related dry eye patients.Participants will receive 3% Diquafosol ophthalmic solution. The dosage for both drugs will be one drop, six times per day for 4 weeks. Pediatric Refractive Error Profiletear(PREP), tear film lipid layer (TFLL),non-invasive breakup time (NITBUT), corneoconjunctival staining score (CS), tear meniscus height (TMH), objective visual quality,ocular surface disease index (OSDI) will be assessed and compared at baseline, day-14, and day-28
Comparison of the Accuracy of Different Intraocular Lens Power Calculation Formulas in Cataract Patients With Prior Radial Keratotomy
The Web-based Barret True K formula with no history formula has been proven to be a good choice for cataract patients after RK in several studies. The American society of cataract and refractive surgeons provides several IOL formulas for cataract patients who have undergone previous corneal refractive surgery. In cases where only IOL-Master data are available, Holladay 1 (Double-K) [Holladay 1 (D-K)] can be used for IOL power calculation in cataract patients with a history of RK. The traditional Haigis formula has also been shown to be effective for cataract patients after RK. To compare the accuracy of four intraocular lens (IOL) power calculation formulas in cataract patients after RK. They are Barrett True-K formula, Holladay 1(D-K) formula, Haigis formula, and MM formula.
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