Comparison of Non-pharmaceutical Treatments for Evaporative Dry Eye
Study Details
Study Description
Brief Summary
The lipid layer of the tear film is critical to maintaining the integrity of the tear film and deficiency in the tear film lipid layer (TFLL) is the cause of evaporative dry eye (EDE) in approximately 80% of dry eye disease patients, resulting in excessive evaporation (so-called hyperevaporative dry eye). This study protocol was designed to assess and compare the effects of intense pulsed light (IPL), heated eye mask (HEM), vectored thermal pulsation system (VTPS), and eyelid massage device (EMD) for improving signs and symptoms of EDE.
EDE patients will be randomly divided into IPL, HEM, VTPS, and EMD groups and will be followed up for four weeks. The primary outcome measure will be non-invasive tear breakup time (NITBUT). The secondary outcome measures will include, tear film lipid layer score (TFLL), meibomian gland function and secretion quality change from baseline conjunctival and cornea staining (CFS) with fluorescein and lissamine, tear meniscus height (TMH), conjunctival hyperemia (RS score) and ocular surface disease index (OSDI) questionnaire. Additionally, adverse events also were monitored and documented.
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Detailed Description
"A chronic, diffuse abnormality of the meibomian glands, frequently characterized by terminal duct obstruction and/or qualitative/quantitative abnormalities in glandular secretion," is how the International Workshop on meibomian gland (MG) hypofunction or dysfunction (MGD) describes MGD. These glands, which are repurposed sebaceous glands, secrete meibum onto the ocular surface. By improving the quality and quantity of meibum secretion, signs and symptoms of evaporative dry eye (EDE) and MGD can be alleviated.
Traditional remedies derived from natural sources have been utilized for treating anterior eye ailments since ancient times, predating the advent of contemporary pharmacological interventions. These remedies continue to be employed in diverse populations globally. The objective of this study is to examine the present non-pharmacological modalities that have been implemented and evaluate their efficacy. This encompasses alternative medicine, extant non-pharmaceutical therapeutic modalities, as well as contemporary low and high technological interventions. The most common approaches to relieving MGD involve the application of heat to the eyelids with and without physical massage of the eyelids in order to express the MGs.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: Group A: IPL group participants will receive IPL treatment with 12 homogeneously spaced pulses of light to both eyes at day 0, day 14, and day 28 |
Device: IPL
IPL treatment intensity was chosen based on the Fitzpatrick scale as follows: Fitzpatrick scale I, II, III, 10-15 J/cm2 with a 570-nm filter
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Experimental: Group B: HEM group participants were applied an air-activated disposable eye mask on both closed eyes (Ocuface Medical Co., Ltd., Guangzhou, China) simultaneously for 15 minutes according to the manufacturer's instructions every day for 42 days |
Device: Heated eye mask
Heated eye mask will be used to assess its usefulness in dry eye signs and symptoms
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Experimental: Group C: VTPS group VTPS group, Patients will receive a single 12-minute treatment using the LipiFlow® (TearScience Inc., Morrisville, NC) on both eyes at day 0 |
Device: LipiFlow®
LipiFlow® can control the variables of temperature, pressure, and MG expression technique
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Experimental: Group D: EyePeace® group Participants were followed immediately by 10 gentle squeezes of the eyelid massage device (EMD) on both eyes, and 10 gentle eyelid massaging movements using the index and middle fingers every day for 42 days. |
Device: EyePeace®
The silicone-made flexible hand-held gadget applies regulated, vertical pressure to the closed eyelids.
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Outcome Measures
Primary Outcome Measures
- Non-invasive tear breakup time (NITBUT) [• Changes at day-14, day-28 and day-42will be compare with baseline measurements. • Comparison between groups at baseline, day-14, day-28 and day-42will also be examined.]
Non-invasive initial tear film breaking time will be assessed using the Keratograph 5M (Oculus, Germany) topographer. Three sequential readings will be captured, and the median value will be included in the final analysis. The median value will be recorded
Secondary Outcome Measures
- Tear Film Lipid Layer Score (TFLL) [• Changes at day-14, day-28 and day-42will be compare with baseline measurements. • Comparison between groups at baseline, day-14, day-28 and day-42will also be examined.]
Tear film lipid layer interferometry will be assessed using DR-1 (Kowa, Nagoya, Japan). The results will be graded as follows: grade 1, somewhat gray color, uniform distribution; grade 2, somewhat gray color, nonuniform distribution; grade 3, a few colors, nonuniform distribution; grade 4, many colors, nonuniform distribution; grade 5, corneal surface partially exposed
- Meibomian gland function and secretion quality [• Changes at day-14, day-28 and day-42will be compare with baseline measurements. • Comparison between groups at baseline, day-14, day-28 and day-42will also be examined.]
Five meibomian glands in the middle parts of the eyelid will be assessed using a scale of 0 to 3 for each gland (0 represented clear meibum; 1 represented cloudy meibum; 2 represented cloudy and granular meibum; and 3 represented thick, toothpaste-like consistency meibum)
- Ocular Surface Disease Index (OSDI) [• Changes at day-14, day-28 and day-42will be compare with baseline measurements. • Comparison between groups at baseline, day-14, day-28 and day-42will also be examined.]
The patient will answer each question on a scale ranging from 0 to 4, with 0 indicating 'none of the time' and 4 indicating 'all of the time'. If a certain question is deemed irrelevant, it will be marked as 'not applicable (N/A)' and excluded from the analysis. The OSDI total score is calculated according to the following formula. The scale ranges from 0 to 100, with higher scores representing more severe cases of dry eye syndrome
- Fluorescein and lissamine conjunctival and cornea staining (CFS) [• Changes at day-14, day-28 and day-42will be compare with baseline measurements. • Comparison between groups at baseline, day-14, day-28 and day-42will also be examined.]
Fluorescein and lissamine staining of the ocular surface will be divided into three zones comprising nasal conjunctival, corneal, and temporal conjunctival areas. The staining score ranged from 0 to 3 for each zone, yielding a total score of 0-9 for the ocular surface
- Tear meniscus height (TMH) [• Changes at day-14, day-28 and day-42will be compare with baseline measurements. • Comparison between groups at baseline, day-14, day-28 and day-42will also be examined.]
Non-invasive first tear film breakup time using the Keratograph 5M (Oculus, Germany) topographer will be measured three times consecutively and the median value was recorded
- Conjunctival hyperemia (RS score) [• Changes at day-14, day-28 and day-42will be compare with baseline measurements. • Comparison between groups at baseline, day-14, day-28 and day-42will also be examined.]
Conjunctival hyperemia (RS score) will be assessed by Keratograph image (Oculus, Germany) of 1156*873 pixels, redness score (RS) (accurate to 0.1 U) was displayed on the computer screen that ranged from 0.0 (normal) to 4.0 (severe)
- Thermal imaging: Ocular surface temperature (OST) [• Changes at day-14, day-28 and day-42will be compare with baseline measurements. • Comparison between groups at baseline, day-14, day-28 and day-42will also be examined.]
All measurements were taken in the same room with controlled temperature and humidity. Prior to ocular thermography or other tests, participants were acclimatized to the room for 20 minutes. Morgan and colleagues described the following criteria for recording OST: The patients were instructed to blink normally, close their eyes for 3 seconds, and the first image was captured soon after the eyelids opened[27,52]. The temperature was taken in the central cornea, which was defined as a circular area 4 mm in diameter in the middle of the cornea
Eligibility Criteria
Criteria
Inclusion Criteria:
- (i) age ≥ 18 years, (ii) able and willing to comply with the treatment/follow-up schedule, (iii) Bilateral signs and symptoms of dry eye disease (a) the ocular surface disease index (OSDI) questionnaire ≥ 13, (b) a non-invasive tear film breakup time (NITBUT) of ≤10 s, or a conjunctivocorneal staining score (CS) of ≥ 3 points. The presence of two or more criteria was used to establish a positive DE diagnosis, based on the 2016 Asia Dry Eye Society criteria, (iv) Lipid layer thickness score evaluation ≥ 2.
Exclusion Criteria:
(i) existing ocular trauma, infectious diseases, recent surgical history; (ii) skin defects, pigmentation, moles, scars in the treatment area, skin cancer; (iii) autoimmune diseases, skin allergies; (iv) pregnancy or lactation; and (v) photophobia that may cause reflex tearing or difficulty in evaluating the patient's lipid layer.-
Contacts and Locations
Locations
No locations specified.Sponsors and Collaborators
- He Eye Hospital
Investigators
- Study Chair: Emmanuel Eric Pazo, He eye specialist hospital
Study Documents (Full-Text)
None provided.More Information
Publications
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- Xu L, Wu Y, Song Y, Zhang Q, Qin G, Yang L, Ma J, Palme C, Moore JE, Pazo EE, He W. Comparison Between Heated Eye Mask and Intense Pulsed Light Treatment for Contact Lens-Related Dry Eye. Photobiomodul Photomed Laser Surg. 2022 Mar;40(3):189-197. doi: 10.1089/photob.2021.0094.
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