Relieving the symptoms of dry eye disease: update on lubricating eye drops containing hydroxypropyl-guar.

Hydroxypropyl-guar (HPG) is a thickening agent first added to lubricating eye drops in 2003. This agent, which enhances viscosity, has been used in the SYSTANE® family of lubricant eye drops (Alcon Laboratories, Inc., Fort Worth, TX, USA).

A Decade of Effective Dry Eye Disease Management with Systane Ultra (Polyethylene Glycol/Propylene Glycol with Hydroxypropyl Guar) Lubricant Eye Drops.

Dry eye disease (DED) is a multifactorial ocular condition characterized by a loss of homeostasis of the tear film resulting in ocular symptoms of discomfort, irritation, and visual disturbance, all of which significantly impact the patients' social and occupational quality of life. While management of DED depends on the severity of symptoms and signs, use of artificial tear products (ATPs) that replace or supplement the deficient natural tear film is the mainstay treatment option. In this review, we present a decade of evidence on Systane Ultra (polyethylene glycol [PEG]/propylene glycol [PG] with hydroxypropyl guar [HP guar]) in effectively managing DED.

Hydrogen Peroxide Disinfecting Solution for Gas Permeable Contact Lenses: A Review of the Antimicrobial Efficacy, Compatibility, and Safety Performance of a One-Step Lens Care System.

CLEAR CARE PLUS (CCP), also known as AOSEPT PLUS with HydraGlyde, is approved for use with gas permeable (GP) lenses, and the indication is supported by the scientific evidence that is reviewed in this article. Antimicrobial efficacy testing of CCP both as a stand-alone disinfectant and as part of a regimen shows that CCP exceeds the ISO 14729 criteria against bacteria, yeast, and mold. In real-world conditions, it is effective against clinically relevant bacterial strains isolated from adverse events and against the two forms, trophozoites and cysts, of resilient species.

Symptom Relief Following a Single Dose of Propylene Glycol-Hydroxypropyl Guar Nanoemulsion in Patients with Dry Eye Disease: A Phase IV, Multicenter Trial.

Purpose: To evaluate symptom relief in patients with dry eye disease (DED) following a single drop of propylene glycol-hydroxypropyl guar (PG-HPG) nanoemulsion (Systane Complete) lubricant eye drops.

Methods: This was a Phase IV, multicenter, open-label, interventional study in adult patients with DED of aqueous-deficient, evaporative, and mixed subtypes. Patients instilled one drop of PG-HPG in each eye at Day 1.

Efficacy and Safety of Phospholipid Nanoemulsion-Based Ocular Lubricant for the Management of Various Subtypes of Dry Eye Disease: A Phase IV, Multicenter Trial.

Purpose: To evaluate the clinical efficacy and safety of propylene glycol/hydroxypropyl-guar (PG-HPG)-based nanoemulsion (Systane Complete) lubricant eye drops in participants with dry eye disease (DED).

Participants And Methods: In this phase IV, open-label, single-arm, interventional, multicenter study, adult participants with DED - subtyped into aqueous deficient, evaporative, and mixed dry eye - were instructed to instill one drop of PG-HPG in each eye twice a day for 28 days. Endpoints included change from baseline in tear film break-up time (TFBUT) (primary) and ocular discomfort visual analog scale (VAS) score at Day 14 and TFBUT at Day 28 (secondary).

Light-scattering study of the normal human eye lens: elastic properties and age dependence.

The human ocular lens is a tissue capable of changing its shape to dynamically adjust the optical power of the eye, a function known as accommodation, which gradually declines with age. This capability is the response of the lens tissue to external forces, which, in turn, is modulated by the biomechanical characteristics of lens tissues. In order to investigate the contributions of lens sclerosis to loss of accommodation, we report on in vitro confocal Brillouin light scattering studies of human ocular lenses spanning over a 30-70 year age range.