Effect of Upper Eyelid Surgeries on Corneal Characteristics
1 other identifier
observational
13
1 country
1
Brief Summary
The goal of this prospective observational study is to learn about the impact of conventional eyelid correction surgery on the eye's health and function in ptosis and eyelid retraction patient. The main questions it aims to answer are: •
- 1.Changes in corneal topography, higher-order corneal aberrations, corneal biomechanical characteristics, and corneal epithelial thickness before and after the surgery
- 2.Influence of corneal refraction examinations , vision change, and tear film function after the surgery
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Feb 2023
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 6, 2023
CompletedStudy Start
First participant enrolled
February 6, 2023
CompletedFirst Posted
Study publicly available on registry
March 1, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 10, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
July 10, 2023
CompletedNovember 25, 2024
February 1, 2023
5 months
February 6, 2023
November 20, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (14)
Change from best corrected visual acuity at 3 months after the surgery
Assess best corrected visual acuity by qualified optometrists, with Landolt C chart-based examination Record as decimal visual acuity
Baseline, Month 1, Month 3
Change from intraocular pressure at 3 months after the surgery
Measure intraocular pressure with tonometers in unit of mmHg
Baseline, Month 1, Month 3
Change from eyeball axial length at 3 months after the surgery
Measure eyeball axial length with A-scan in unit of mm
Baseline, Month 1, Month 3
Change from slit lamp examination at 3 months after the surgery
Assess local findings with a slit lamp by same and only ophthalmologist, Dr. YH Wei
Baseline, Month 1, Month 3
Change from margin to reflex distance (MRD) at 3 months after the surgery
Measure margin to reflex distance with a ruler in unit of mm by same and only ophthalmologist, Dr. YH Wei MRD-1: from the corneal light reflex to the level of the center of the upper-eyelid margin MRD-2: from the corneal light reflex to the central portion of the lower eyelid
Baseline, Month 1, Month 3
Change from levator muscle function (LMF) at 3 months after the surgery
Measure levator muscle function with a ruler in unit of mm by same and only ophthalmologist, Dr. YH Wei LMF: the distance the eyelid travel from downgaze to upgaze while the frontalis muscle is held inactive at the brow
Baseline, Month 1, Month 3
Change from lagophthalmos at 3 months after the surgery
Measure lagophthalmos with a ruler in unit of mm by same and only ophthalmologist, Dr. YH Wei
Baseline, Month 1, Month 3
Change from basal tear volume at 3 months after the surgery
Measure basal tear volume with Schirmer's test in unit of mm/5 minutes Schirmer's test: small paper strip with rulers printed is placed over the temporal one-third of the lower lid margin and inserted inside the inferior conjunctival fornices under local infiltrating anesthesia. The strips are removed after 5 minutes and the amount of tears produced in that time is measured by reading off of the length of wetting in millimeters.
Baseline, Month 1, Month 3
Change from ocular surface disease index (OSDI) at 3 months after the surgery
Interview participants with OSDI questionnaire to assesses dry eye symptoms and the effects on vision-related function by same and only ophthalmologist, Dr. YH Wei
Baseline, Month 1, Month 3
Change from tear break up time at 3 months after the surgery
Measure tear break up time with Oculus Keratograph 5M (OCULUS, Wetzlar, Germany) in unit of sec
Baseline, Month 1, Month 3
Change from corneal biomechanical characteristics at 3 months after the surgery
Measure corneal biomechanical characteristics with Oculus Corvis ST tonometer (OCULUS, Wetzlar, Germany)
Baseline, Month 1, Month 3
Change from corneal topography at 3 months after the surgery
Measure corneal topography with Tomey TMS topographer (TOMEY, Nuremberg, Germany) and record as topography map.
Baseline, Month 1, Month 3
Change from higher-order corneal aberrations at 3 months after the surgery
Measure higher-order corneal aberrations with Tracey iTrace wavefront aberrometer and corneal topography (TRACEY, Texas, USA), using beam of light projected into the eyes. The wavefront of the reflected light is captured by the machine and collected the distortion and aberration of the cornea.
Baseline, Month 1, Month 3
Change from corneal epithelial thickness at 3 months after the surgery
Measure corneal epithelial thickness with anterior segment optical coherence tomography in unit of micrometer (Visionix USA, Illinois, USA)
Baseline, Month 1, Month 3
Study Arms (2)
Ptosis patient
Undergo conventional ptosis correction surgery, including levator muscle resection surgery and Müller's muscle-conjuctival resection surgery
Eyelid retraction patient
Undergo conventional ptosis correction surgery, including full-thickness anterior blepharotomy surgery
Interventions
conventional eyelid retraction surgery
Eligibility Criteria
Participants from 20-year-old to 80-year old who need eyelid correction surgery, Group 1 : Ptosis patient with marginal reflex distance 1 (MRD1) ≦ 2-2.5 mm and levator muscle fundction (LMF) ≧ 8 mm; Group 2 : Eyelid retraction patient with upper scleral show. The population excluded patients with pregnancy, previous corneal surgery, corneal scar, pterygium, keratoconus, significant ocular surface disease, or wearing rigid contact lens.
You may qualify if:
- Group 1:
- marginal reflex distance 1 (MRD1) ≦ 2-2.5 mm
- levator muscle function (LMF) ≧ 8 mm
- Group 2:
- with upper scleral show
You may not qualify if:
- pregnancy
- previous corneal surgery
- with corneal scar
- pterygium
- keratoconus
- significant ocular surface disease
- wearing rigid contact lens
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Taiwan University Hospital
Taipei, 100, Taiwan
Related Publications (14)
Aksu Ceylan N, Yeniad B. Effects of Upper Eyelid Surgery on the Ocular Surface and Corneal Topography. Turk J Ophthalmol. 2022 Feb 23;52(1):50-56. doi: 10.4274/tjo.galenos.2021.63255.
PMID: 35196840BACKGROUNDSavino G, Battendieri R, Riso M, Traina S, Poscia A, D'Amico G, Caporossi A. Corneal Topographic Changes After Eyelid Ptosis Surgery. Cornea. 2016 Apr;35(4):501-5. doi: 10.1097/ICO.0000000000000729.
PMID: 26751993BACKGROUNDOzturk Karabulut G, Fazil K. Corneal Topographical Changes After Muller's Muscle-conjunctival Resection Surgery. Ophthalmic Plast Reconstr Surg. 2019 Mar/Apr;35(2):177-181. doi: 10.1097/IOP.0000000000001203.
PMID: 30130332BACKGROUNDZloto O, Matani A, Sagiv O, Prat D, Ben Artsi E, Leshno A, Priel A, Ben Simon GJ. Changes in Refraction and Visual Acuity after Upper Eyelid Blepharoplasty versus Posterior Approach Ptosis Procedures. Ophthalmic Res. 2020;63(6):588-592. doi: 10.1159/000506951. Epub 2020 Mar 5.
PMID: 32135543BACKGROUNDAltin Ekin M, Karadeniz Ugurlu S. Prospective analysis of visual function changes in patients with dermatochalasis after upper eyelid blepharoplasty. Eur J Ophthalmol. 2020 Sep;30(5):978-984. doi: 10.1177/1120672119857501. Epub 2019 Jun 17.
PMID: 31203659BACKGROUNDBhattacharjee K, Misra D, Singh M, Deori N. Long-term changes in contrast-sensitivity, corneal topography and higher-order aberrations after upper eyelid blepharoplasty: A prospective interventional study. Indian J Ophthalmol. 2020 Dec;68(12):2906-2910. doi: 10.4103/ijo.IJO_907_20.
PMID: 33229668BACKGROUNDLi X, Liu C, Mao Z, Liang X, Li Z, Liu X, Gong R, Huang D. Effect of congenital blepharoptosis on corneal biomechanical properties and changes after ptosis surgery. Eye (Lond). 2020 Jun;34(6):1055-1062. doi: 10.1038/s41433-019-0586-9. Epub 2019 Sep 26.
PMID: 31558826BACKGROUNDSommer F, Untch E, Spoerl E, Herber R, Pillunat LE, Terai N. Effect of upper eyelid blepharoplasty on corneal biomechanical, topographic and tomographic parameters 4 weeks after surgery. Int Ophthalmol. 2022 Jan;42(1):113-121. doi: 10.1007/s10792-021-02006-6. Epub 2021 Sep 3.
PMID: 34478004BACKGROUNDDogan AS, Acar M, Kosker M, Arslan N, Gurdal C. Alterations in corneal epithelial thickness in patients with congenital myogenic eyelid ptosis. Int Ophthalmol. 2018 Feb;38(1):53-57. doi: 10.1007/s10792-016-0419-9. Epub 2016 Dec 26.
PMID: 28025794BACKGROUNDYamamoto R, Ono T, Toyono T, Shirakawa R, Noda M, Yoshida J, Miyai T. Assessment of Long-Term Anterior and Posterior Topographic Changes in the Cornea After Ptosis Surgery Using Fourier Harmonic Analysis. Cornea. 2021 Apr;40(4):440-444. doi: 10.1097/ICO.0000000000002429.
PMID: 33881809BACKGROUNDKanclerz P, Khoramnia R, Wang X. Current Developments in Corneal Topography and Tomography. Diagnostics (Basel). 2021 Aug 13;11(8):1466. doi: 10.3390/diagnostics11081466.
PMID: 34441401BACKGROUNDGrubbs JR Jr, Tolleson-Rinehart S, Huynh K, Davis RM. A review of quality of life measures in dry eye questionnaires. Cornea. 2014 Feb;33(2):215-8. doi: 10.1097/ICO.0000000000000038.
PMID: 24326332BACKGROUNDSchiffman RM, Christianson MD, Jacobsen G, Hirsch JD, Reis BL. Reliability and validity of the Ocular Surface Disease Index. Arch Ophthalmol. 2000 May;118(5):615-21. doi: 10.1001/archopht.118.5.615.
PMID: 10815152BACKGROUNDAng M, Baskaran M, Werkmeister RM, Chua J, Schmidl D, Aranha Dos Santos V, Garhofer G, Mehta JS, Schmetterer L. Anterior segment optical coherence tomography. Prog Retin Eye Res. 2018 Sep;66:132-156. doi: 10.1016/j.preteyeres.2018.04.002. Epub 2018 Apr 7.
PMID: 29635068BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Yi-Hsuan Wei, PhD
National Taiwan University Hospital, Department of Ophthalmology
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- PROSPECTIVE
- Target Duration
- 3 Months
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 6, 2023
First Posted
March 1, 2023
Study Start
February 6, 2023
Primary Completion
July 10, 2023
Study Completion
July 10, 2023
Last Updated
November 25, 2024
Record last verified: 2023-02