The excessive use of screens particularly amongst digital gamers can adversely impact the health of the surface of the eyes with symptoms and signs of surface damage. While strategies including limiting screen time exist, these may be ineffective given the widespread rise of digital device use and gaming culture in the modern era. There is limited evidence for the protective effect of lubricating eyedrops on the ocular surface for handheld console and computer gamers. The aim of this study is to investigate the protective effect of a lubricating eyedrop (TheaLoz Duo) on the surface of the eyes in handheld console and computer gamers. The main question it aims to answer is whether TheaLoz Duo could protect the surface of the eyes from dessication and alleviate symptoms of dry eye disease in handheld console and computer gamers. Participants will receive either the lubricating eyedrop first for 1 month, followed by a control condition (no eyedrops) for another month, or the other way round. Participants will attend 3 visits in total, each separated by 1 month apart. During each visit, routine clinical assessments of the front of the eye will be conducted. Subsequent findings from this timely study will help improve care of the surface of the eyes for a growing population of gamers worldwide.
This study will be a randomized, outcome assessor-masked, cross-over clinical study to assess the potential impact of TheaLoz Duo lubricating eyedrop on symptoms and signs of dry eye disease in handheld console and computer gamers. All visits will be conducted at the Aston Dry Eye Clinic in Aston University, Birmingham, United Kingdom.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
28
TheaLoz Duo lubricating eyedrop contains 3.0% trehalose and 0.15% sodium hyaluronate as active ingredients and will be used by participants everyday to instill 1 drop, 4 times a day in both eyes.
School of Optometry, Aston University
Birmingham, West Midlands, United Kingdom
RECRUITINGChange from Baseline in Ocular Surface Disease Index scores to the First Follow-Up 1 Month After Baseline
Validated questionnaire for assessing dry eye symptom severity and impact. Scores range from 0 indicating no dry eye symptoms to 100 with severe dry eye symptoms and impact (Schiffman et al, 2000).
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Ocular Surface Disease Index scores to the Second Follow-Up 1 Month After the First Follow-Up
Validated questionnaire for assessing dry eye symptom severity and impact. Scores range from 0 indicating no dry eye symptoms to 100 with severe dry eye symptoms and impact (Schiffman et al, 2000).
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Computer Vision Syndrome Questionnaire scores to the First Follow-Up 1 Month After Baseline
Validated questionnaire for assessing the severity and frequency of eye strain when using a computer. The scores range from 0 to 32 (Seguí Mdel et al, 2015).
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Computer Vision Syndrome Questionnaire scores to the Second Follow-Up 1 Month After the First Follow-Up
Validated questionnaire for assessing the severity and frequency of eye strain when using a computer. The scores range from 0 to 32 (Seguí Mdel et al, 2015).
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Visual Acuity to the First Follow-Up 1 Month After Baseline
Subjective measure of visual acuity using Logarithm of the Minimum Angle Resolution (logMAR) scoring, ranging from -0.30 which signify the ability to be able to resolve the smallest letters, to 1.00 which signify the ability to resolve only the largest letters.
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Visual Acuity to the Second Follow-Up 1 Month After the First Follow-Up
Subjective measure of visual acuity using Logarithm of the Minimum Angle Resolution (logMAR) scoring, ranging from -0.30 which signify the ability to be able to resolve the smallest letters, to 1.00 which signify the ability to resolve only the largest letters.
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Tear Meniscus Height to the First Follow-Up 1 Month After Baseline
Measure of the volume of tears in mm using the Oculus Keratograph 5M instrument. An average of 3 measurements is obtained.
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Tear Meniscus Height to the Second Follow-Up 1 Month After the First Follow-Up
Measure of the volume of tears in mm using the Oculus Keratograph 5M instrument. An average of 3 measurements is obtained.
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Lipid Layer Pattern to the First Follow-Up 1 Month After Baseline
Subjective grading of the appearance of the lipid layer pattern as a surrogate measure of its thickness using the Oculus Keratograph 5M instrument. This ranges from Grade 1 indicating very thin lipid layer to Grade 6 indicating very thick lipid layer.
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Lipid Layer Pattern to the Second Follow-Up 1 Month After the First Follow-Up
Subjective grading of the appearance of the lipid layer pattern as a surrogate measure of its thickness using the Oculus Keratograph 5M instrument. This ranges from Grade 1 indicating very thin lipid layer to Grade 6 indicating very thick lipid layer.
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Bulbar Conjunctival Hyperaemia to the First Follow-Up 1 Month After Baseline
Automated objective grading of the bulbar conjunctival redness using the Oculus Keratograph 5M instrument. This ranges from Grade 0 indicating no redness to Grade 4 indicating substantial redness.
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Bulbar Conjunctival Hyperaemia to the Second Follow-Up 1 Month After the First Follow-Up
Automated objective grading of the bulbar conjunctival redness using the Oculus Keratograph 5M instrument. This ranges from Grade 0 indicating no redness to Grade 4 indicating substantial redness.
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Blink Rate to the First Follow-Up 1 Month After Baseline
Manual subjective count of the number of blinks using the Oculus Keratograph 5M instrument.
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Blink Rate to the Second Follow-Up 1 Month After the First Follow-Up
Manual subjective count of the number of blinks using the Oculus Keratograph 5M instrument.
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Fluorescein Corneal Staining to the First Follow-Up 1 Month After Baseline
Subjective grading of the amount of corneal staining using fluorescein instillation, cobalt blue light illumination and the Oxford grading scale. This ranges from 0 with no staining to 5 with intense staining.
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Fluorescein Corneal Staining to the Second Follow-Up 1 Month After the First Follow-Up
Subjective grading of the amount of corneal staining using fluorescein instillation, cobalt blue light illumination and the Oxford grading scale. This ranges from 0 with no staining to 5 with intense staining.
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Lissamine Green Bulbar Conjunctival Staining to the First Follow-Up 1 Month After Baseline
Subjective grading of the amount of bulbar conjunctival staining using lissamine green instillation, white light illumination and the Oxford grading scale. This ranges from 0 with no staining to 5 with intense staining.
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Lissamine Green Bulbar Conjunctival Staining to the Second Follow-Up 1 Month After the First Follow-Up
Subjective grading of the amount of bulbar conjunctival staining using lissamine green instillation, white light illumination and the Oxford grading scale. This ranges from 0 with no staining to 5 with intense staining.
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Lissamine Green Lid Wiper Epitheliopathy to the First Follow-Up 1 Month After Baseline
Subjective grading of the amount of lid wiper epitheliopathy using lissamine green instillation and white light illumination. This grading ranges from 0 with no lid wiper epitheliopathy to 4 with severe lid wiper epitheliopathy
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Lissamine Green Lid Wiper Epitheliopathy to the Second Follow-Up 1 Month After the First Follow-Up
Subjective grading of the amount of lid wiper epitheliopathy using lissamine green instillation and white light illumination. This grading ranges from 0 with no lid wiper epitheliopathy to 4 with severe lid wiper epitheliopathy
Time frame: First follow-up to 1 month after the first follow-up
Change from Baseline in Meibography Meiboscore to the First Follow-Up 1 Month After Baseline
Subjective grading of the amount of Meibomian gland loss using infrared imaging and the Pult meiboscore. This grading ranges from 0 with no gland loss to 4 with severe gland loss (Pult and Reide-Pult, 2013).
Time frame: Baseline to 1 month after baseline
Change from First Follow-Up in Meibography Meiboscore to the Second Follow-Up 1 Month After the First Follow-Up
Subjective grading of the amount of Meibomian gland loss using infrared imaging and the Pult meiboscore. This grading ranges from 0 with no gland loss to 4 with severe gland loss (Pult and Reide-Pult, 2013).
Time frame: First follow-up to 1 month after the first follow-up
Number of Participants with Dry Eye Disease at Baseline
The number of participants diagnosed with dry eye disease according to established clinical diagnostic criteria (Wolffsohn et al, 2017).
Time frame: At baseline
Number of Participants with Dry Eye Disease at First Follow-Up
The number of participants diagnosed with dry eye disease according to established clinical diagnostic criteria (Wolffsohn et al, 2017).
Time frame: At first follow-up 1 month after baseline
Number of Participants with Dry Eye Disease at SecondFollow-Up
The number of participants diagnosed with dry eye disease according to established clinical diagnostic criteria (Wolffsohn et al, 2017).
Time frame: At second follow-up 1 month after first follow-up
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.