Pterygium is a very common disease in an eye clinic characterized by a benign proliferation of local conjunctiva that often crosses the limber of cornea and extends into corneal surface. Variety of studies has showed that pterygium is able to result in ocular discomfort and the change of ocular surface environment, such as dry eye. However, the link between abnormal tear film function and ptery...

PURPOSE To investigate the changes in dry eye symptoms and clinical signs and corneal sensitivity after small incision lenticule extraction (SMILE) and femtosecond LASIK (femto-LASIK). DESIGN Prospective, non-randomized comparative study. METHODS The study included a total of 71 eyes of 71 patients; the SMILE group comprised 38 eyes of 38 patients, and the femto-LASIK group comprised 33 eye...

We present an overset grid method to simulate the evolution of human tear film thickness subject to reflex tearing. The free-surface evolution is governed by a single fourth-order non-linear equation derived from lubrication theory with specified film thickness and volume flux at each end. The model arises from considering the limiting case where the surfactant is strongly affecting the surface...

PURPOSE To evaluate and compare the tear-film dynamics in normal eyes and in eyes with mild dry-eye symptoms using a new noninvasive optical method based on a double-pass instrument. SETTING Hospital Universitario Virgen de la Arrixaca, Murcia, Spain. DESIGN Evaluation of diagnostic test or technology. METHODS Dynamic recording of double-pass retinal images during unforced tear-film break...

PURPOSE To examine the dynamics of the tear film in patients with dry eye by measuring the wavefront aberrations of the anterior surface of the film. METHODS Anterior surface aberrations for a 7-mm pupil were determined in 13 patients with dry eye at 1-second time intervals, for 15 seconds after a blink. The aberrations were calculated from the elevations provided by corneal topography. All d...

Aim of the study is to determine connection between pseudoexfoliation (PEX) syndrome and symptoms and signs of ocular surface disease. Tear film break-up time test, Schirmer II test and assessment of lid parallel conjunctival folds were performed in 40 PEX syndrome patients and 40 controls. All data was statistically analyzed. Results show statistically significant difference in every component...

Quercetin offers interesting beneficial options in clinical practice by providing anti-allergic and anti-inflammatory activities. This article reports discusses the effectiveness of oral administration quercetin Phytosome™ adults presenting allergic conjunctivitis. The analysis was conducted evaluating both subjective symptoms reported individuals; objective tear film instability due to conjunc...

We evaluated the effect of 0.1% sodium hyaluronate (unpreserved) in 10 patients with dry eyes. The precorneal tear film break-up time was assessed by the non-invasive technique, and the severity of symptoms was recorded before and after treatment on a 0 to +3 scale. It was found that the tear film stability was significantly increased (p less than 0.05) in eyes treated with sodium hyaluronate. ...