propylene glycol and Dry Eye

propylene glycol has been researched along with Dry Eye in 14 studies

Propylene Glycol: A clear, colorless, viscous organic solvent and diluent used in pharmaceutical preparations.
propane-1,2-diol : The simplest member of the class of propane-1,2-diols, consisting of propane in which a hydrogen at position 1 and a hydrogen at position 2 are substituted by hydroxy groups. A colourless, viscous, hygroscopic, low-melting (-59degreeC) and high-boiling (188degreeC) liquid with low toxicity, it is used as a solvent, emulsifying agent, and antifreeze.

Research

Studies (14)

Authors

Clinical Trials (4)

Trial Overview

Trial Outcomes

Mean Change From Baseline in Total Ocular Surface Staining (TOSS) Score at Day 35 (Phase I)

The TOSS score is a composite score of corneal fluorescein staining, nasal conjunctival lissamine green staining, and temporal conjunctival lissamine green staining, each scored on a 0-5 Likert scale (0=absent, 5=severe). TOSS scores can range from 0 to 15. One eye (study eye) contributed to the analysis. (NCT01863368)
Timeframe: Baseline, Day 35

Mean Impact of Dry Eye on Everyday Life (IDEEL) Treatment Effectiveness Score at Day 35 (Phase I)

The IDEEL is a 10-item, patient-reported questionnaire used to measure treatment satisfaction. The subject answered 4 questions pertaining to treatment effectiveness scored on a 0-4 Likert-type scale, where 0=None of the time, 1=A little of the time, 2=Some of the time, 3=Most of the time, and 4=All of the time. The IDEEL score for treatment effectiveness was calculated based upon the mean value of the 4 questions multiplied by 25, for a resultant overall score of 0-100, where 0=Complete disability and 100=No disability. Both eyes contributed to the analysis. (NCT01863368)
Timeframe: Day 35

Mean Impact of Dry Eye on Everyday Life (IDEEL) Treatment Inconvenience Score at Day 35 (Phase I)

The IDEEL is a 10-item, patient-reported questionnaire used to measure treatment satisfaction. The subject answered 4 questions pertaining to treatment inconvenience scored on a 0-4 Likert-type scale, where 0=All of the time, 1=Most of the time, 2=Some of the time, 3=A little of the time, and 4=None of the time. The IDEEL score for treatment inconvenience was calculated based upon the mean value of the 4 questions multiplied by 25, for a resultant overall score of 0-100, where 0=Complete disability and 100=No disability. Both eyes contributed to the analysis. (NCT01863368)
Timeframe: Day 35

Mean Ocular Surface Disease Index (OSDI) Score at Day 35 (Phase I)

The OSDI is a 12-item, quality of life questionnaire that evaluates symptoms based on 3 modules (type of discomfort, environmental triggers, and tasking) on a 0-4 Likert scale (0=None of the time, 4=All of the time). A resultant overall 0-100 score was calculated, where 0=No disability and 100=Complete disability. Both eyes contributed to the analysis. (NCT01863368)
Timeframe: Day 35

Ocular Surface Disease Index (OSDI©) Questionnaire

Ocular Surface Disease Index (OSDI©) questionnaire , consists of 12 questions divided in 3 groups, Each question has a value that can go from 0 to 4 points according to the severity of the case: 0.None of the time, 1. Some of the time, 2.Half of the time, 3.most of the time and 4 all of the time. The points of all the questions will be used in the following formula for converted to a score of 0-100 : (sum of scores) x 25 / (# of questions answered), where 0 represents normality or non-symptomatology and 100 the most severe case. Will be used to measure the symptoms of dry eye disease by obtaining baseline data and comparing them against the last visit. (NCT01657253)
Timeframe: Day 60

Schirmer Test

"Change from Baseline in Schirmer test after 60 days of treatment~Schirmer test~It is the technique most used to measure aqueous and at the same time the simplest tear secretion. It is carried out as follows: Without applying anesthesia, the patient is placed somewhere without much illumination, without applying anesthesia, a strip of filter paper of approximately 30 mm is placed, of which, 5 mm must go in the joint Of the middle and outer third of the lower eyelid. The patient is instructed to look forward and to blink normally. After 5 minutes the strips are removed and the wetting is recorded in millimeters. A test less than or equal to 6 mm is diagnostic of aqueous deficiency.The mean of the revisions by group will be compared at the baseline and final visit." (NCT01657253)
Timeframe: Day 60

Tear Film Break up Time

Change from Baseline in Tear film break up time after 60 days of treatment Tear film breakup time is the elapsed time from blinking to the first occurrence of a dry area in the cornea, visualized with the help of fluorescein staining. Measurement of tear film breakup time will be performed as follows: Fluorescein is instilled in the eye, the patient is asked to blink three times to distribute the dye and then set the eye to the front and do not blink while the examiner observes the cornea with cobalt blue light, looking for an area of tear film rupture, which is manifested by the appearance of a black island within the fluorescein green film. Normally film breakup time is 10 seconds or more and the minimum register may be 1 second, Under 10 seconds is considered abnormal. (NCT01657253)
Timeframe: Day 60

Fluorescein Tear Film Break-up Time

Standard clinical assessment methodology for assessing tear stability. (NCT00681265)
Timeframe: 120 minutes after eye drops instillation

Noninvasive Tear Film Break-up Time

State-of-the-art methodology to assess tear stability. (NCT00681265)
Timeframe: 15 minutes after eye drop instillation

Reviews

3 reviews available for propylene glycol and Dry Eye

Trials

7 trials available for propylene glycol and Dry Eye

Other Studies

4 other studies available for propylene glycol and Dry Eye