scholarly journals Ocular Surface Epithelial Thickness Evaluation in Dry Eye Patients: Clinical Correlations

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Qingfeng Liang ◽  
Hong Liang ◽  
Hanruo Liu ◽  
Zhiqiang Pan ◽  
Christophe Baudouin ◽  
...  
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Tear Film ◽  
Conjunctival Epithelium ◽  
Ocular Surface Disease Index ◽  
Control Subjects ◽  
Significant Difference ◽  
Epithelium Thickness ◽  
Oxford Score ◽  
Schirmer I Test

Purpose.To evaluate the relationship between corneal and conjunctival epithelium thickness and ocular surface clinical tests in dry eye disease (DED) patients.Patients and Methods.Fifty-four patients with DED and 32 control subjects were included. Each patient underwent an ocular surface evaluation using the ocular surface disease index (OSDI), tear film break-up time (TBUT), corneal and conjunctival staining, tear film lipid layer analysis, and Schirmer test. The central corneal (CET), limbal (LET), and bulbar conjunctival epithelium thickness (BET) were acquired using spectral-domain optical coherence tomography (SD-OCT).Results.Compared to control subjects, mean BET was significantly thicker and mean LET was significantly lower in the DED group. There was no significant difference in mean CET between the two groups. The mean LET was correlated with OSDI and TBUT. The inferior LET was correlated with OSDI, Schirmer I test, TBUT, Oxford score, and corneal sensitivity. Mean BET was correlated with OSDI and TBUT, but not with Schirmer I test and Oxford score.Conclusions.In dry eye patients, a thinner limbal epithelium and a thicker bulbar conjunctival epithelium were observed. These changes were correlated to the severity of dry eye symptoms and tear film alterations.

scholarly journals Effect of artificial tears on aqueous deficient dry eye, a dynamic optical study

2020 ◽  
Author(s):  
Zhenyu Wei ◽  
Yuandong Su ◽  
Guanyu Su ◽  
Christophe Baudouin ◽  
Antoine Labbé ◽  
...  
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Tear Film ◽  
Quality Parameters ◽  
Optical Quality ◽  
Artificial Tears ◽  
Control Subjects ◽  
Significant Difference ◽  
The Mean ◽  
Objective Scatter Index

Abstract Background: To investigate the change of dynamic optical quality in aqueous deficient dry eye (ADDE) patients after the use of artificial tears.Methods: Fifty-nine patients with ADDE and 31 healthy age- and sex-matched control subjects were included in this prospective case-control study. Clinical evaluation of the ocular surface included Ocular Surface Disease Index (OSDI), tear film break-up time (TBUT), lipid layer thickness (LLT), and Schirmer I testing. ADDE patients were divided into two groups, mild (31 patients) and severe (28 patients). The optical quality of the tear film was measured with the Optical Quality Analysis System (OQAS) using the mean objective scatter index (mean OSI), standard deviation of objective scatter index (SD-OSI) and modulation transfer function cut-off (MTF cut-off). After baseline examinations, one drop of artificial tears (ATs, carboxymethylcellulose ophthalmic solution, 0.5%) was instilled in both eyes, and optical quality parameters were measured again at 5- and 30-minutes following application of ATs.Results: At baseline, the mean OSI was higher in the ADDE group (0.95 ± 0.54) than in controls (0.54 ± 0.23, P<0.001). The SD-OSI was also significantly increased in ADDE patients (0.44 ± 0.71) compared to control subjects (0.12 ± 0.06, P=0.003). Five minutes after ATs instillation, mean OSI and SD-OSI decreased significantly in severe ADDE patients (P=0.044; P=0.018), was unchanged in mild ADDE patients, and increased in the control group (P=0.019; P<0.001). Thirty minutes after ATs instillation, no significant difference in optical quality parameters was observed for the three groups.Conclusion: The effect of ATs on optical quality in patients with ADDE may differ according to the severity of the disease. Measurement of optical quality might be a promising tool to evaluate the effects of various ATs and possibly individualize treatment in ADDE patients.

scholarly journals Tear Film Break-Up Time and Dry Eye Disease Severity in a Large Norwegian Cohort

2021 ◽  
Vol 10 (4) ◽  
pp. 884
Author(s):  
Mazyar Yazdani ◽  
Jørgen Fiskådal ◽  
Xiangjun Chen ◽  
Øygunn A. Utheim ◽  
Sten Ræder ◽  
...  
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Characteristic Curve ◽  
Tear Film ◽  
Correlation Coefficients ◽  
Meibomian Gland ◽  
Discriminative Power ◽  
Ocular Surface Disease Index ◽  
Significant Difference ◽  
Break Up

This study evaluated to what extent tear film break-up time (TFBUT) could discriminate pathological scores for other clinical tests and explore the associations between them. Dry eye patients (n = 2094) were examined for ocular surface disease index (OSDI), tear film osmolarity (Osm), TFBUT, blink interval, ocular protection index (OPI), ocular surface staining (OSS), Schirmer I test, meibomian expressibility, meibomian quality, and meibomian gland dysfunction. The results were grouped into eight levels of break-up time (≤2, ≥3, ≤5, ≥6, ≤10, ≥11, ≤15, and ≥16) with or without sex stratification. Receiver-operating characteristic curve (ROC) analysis and Pearson’s correlation coefficients were used to study TFBUT’s discriminative power and the associations among the tests, respectively. Above and below each TFBUT’s cut-off, all of the parameters indicated significant difference between groups, except OSDI (cut-off 15 s) and Osm (cut-offs 5 s–15 s). At TFBUT cut-off of 2 s, sex difference could be detected for OSDI, Osm, and OSS. OPI presented the strongest discriminative power and association with TFBUT in sharp contrast to Osm, holding the poorest discriminative power with no significant correlation. The remaining parameters were within the poor to very poor categories, both with regard to discrimination and correlation. In conclusion, patients with lower TFBUT presented with more severe DED parameters at all four defined cut-off values.

scholarly journals Changes of Dry Eye Related Markers and Tear Inflammatory Cytokines After Upper Blepharoplasty

2021 ◽  
Vol 8 ◽  
Author(s):  
Songjiao Zhao ◽  
Nan Song ◽  
Lan Gong
Keyword(s):  
Inflammatory Cytokines ◽  
Dry Eye ◽  
Ocular Surface ◽  
Clinical Manifestations ◽  
Tear Film ◽  
Ocular Surface Disease Index ◽  
Necrosis Factor Alpha ◽  
Tnf Α ◽  
Break Up ◽  
Upper Blepharoplasty

Objectives: To investigate the changes of dry eye-related clinical manifestations, ocular surface parameters, and tear inflammatory cytokines after upper blepharoplasty.Methods: Forty eyes of 20 who underwent upper blepharoplasty were divided into either the group with or the group without preexisting dry eye before upper blepharoplasty. Ocular Surface Disease Index (OSDI), Schirmer I test, tear meniscus height, lipid layer thickness, non-invasive tear break-up time (NIKBUT), fluorescein tear film break-up time (FBUT), corneal fluorescein staining, meibum expression, lid margin changes, and tear inflammatory cytokines were assessed preoperatively and at 1, 3, and 6 months postoperatively. Correlations between inflammatory cytokines and dry eye-related parameters were determined.Results: The OSDI scores increased significantly at 1 month (p = 0.040) and subsequently decreased to the preoperative levels at 6 months postoperatively in subjects with dry eye. First (f)-NIKBUT and FBUT were significantly shortened at 1, 3, and 6 months postoperatively in subjects with dry eye (f-NIKBUT: p &lt;0.001, p = 0.010, p = 0.042; FBUT: p = 0.002, p = 0.005, p = 0.037, respectively), but were only shortened at 1 month (p = 0.028, p = 0.005) and returned to baseline levels at 6 months postoperatively in subjects without preexisting dry eye. A significant increasing trend of interleukin (IL)-6 was found in both dry eye and subjects without preexisting dry eye (p = 0.016, p = 0.008), while IL-8 and tumor necrosis factor alpha (TNF-α) were only found to be increased in subjects with dry eye postoperatively (p = 0.031, p = 0.031). The levels of IL-8 and TNF-α were positively correlated with OSDI scores (p = 0.046, p = 0.043, respectively) and negatively correlated with f-NIKBUT and FBUT (p = 0.026, p = 0.006, respectively).Conclusions: Upper blepharoplasty might increase the release of tear inflammatory cytokines and tear film instability that contribute to the development of postoperative dry eye in the early postoperative period and the changes most relieved in 6 months. Preexisting dry eye is a higher risk factor for worse and persistent ocular surface damage after upper blepharoplasty.

scholarly journals Function and Morphology of the Meibomian Glands Using a LipiView Interferometer in Rotating Shift Medical Staff

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Jing Zhang ◽  
Zhengzheng Wu ◽  
Liangnan Sun ◽  
Xin-hua Liu
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Medical Staff ◽  
Night Shift ◽  
Control Group ◽  
Ocular Surface Disease Index ◽  
Significant Difference ◽  
Speed Score ◽  
Meibomian Glands ◽  
The Difference

Purpose. To investigate the function and morphology of meibomian glands (MG) in night shift medical staff (MS). Methods. Sixty-two eyes of 31 patients in the MS group and 59 eyes of 31 patients in the control group were consecutively enrolled. All participants completed Ocular Surface Disease Index (OSDI) and Standard Patient Dry Eye Evaluation (SPEED) questionnaires for dry eye severity, as well as Schirmer I and tear break-up time (TBUT) tests. LipiView® II Ocular Surface Interferometer was used for lipid layer thickness (LLT), MG dropout, and partial blink (PB) rate tests. MG expression was measured with an MG evaluator. Results. The OSDI score in the MS group was 22.39 ± 13.42, which was significantly higher than that in the control group (9.87 ± 6.64 Z = −3.997, P=0.001). The SPEED score in the MS group was 7.94 ± 3.81, which was significantly higher than in the control group (3.65 ± 2.11, Z = −4.766, P=0.001). There was no significant difference in Schirmer I test between the MS group and control group (Z = −1.346, P=0.178). TBUT in MS group was significantly shorter than that in the control group (Z = −5.201, P=0.001). The mean LLT of the MS group was 55.02 ± 21.17 nm significantly thinner than that of the control group 72.76 ± 21.62 nm (Z = −4.482, P=0.001). MG loss occurred in 45.16% of affected eyes in the MS group and 16.13% of affected eyes in the control group, and the difference was statistically significant (χ2 = 14.352, P=0.001). MG yielding liquid secretion and MG yielding secretion score were significantly lower in the MS group than in the control group (Z = −3.641, P=0.001; Z = −3.146, P=0.001, resp.). There was a negative correlation between mean LLT and SPEED score (Spearman r = −0.363, P=0.045). Conclusions. Night shift MS had a higher incidence of MGD compared to day workers.

Correlation between Non-Invasive Tear Breakup Time and Invasive Tear Breakup Time for Dry Eye Syndrome Diagnosis

The Eye ◽  
2021 ◽  
Vol 23 (1) ◽  
pp. 15-22
Author(s):  
K. A. Mubarakova ◽  
S. A. Mukhanov ◽  
I. F. Saliyev ◽  
N. H. Habibullayeva
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Tear Film ◽  
Optical Power ◽  
Dry Eye Syndrome ◽  
Non Invasive ◽  
Syndrome Diagnosis ◽  
Breakup Time ◽  
Test Result ◽  
Schirmer I Test

Introduction: in today’s digital environment, dry eye complaints step forward in all age groups. Along with dry eye syndrome, the diagnosis of which is not complicated, there are other causes of dryness such as dysfunction of the tear film and Meibomian glands, etc. For the early detection of the above conditions, invasive diagnostic methods are mainly used.Aim: to compare Non-Invasive Tear Breakup Time (NITBUT) assessed with LacryDiag ocular surface analyzer to results of invasive tests for dry eye syndrome diagnosis to determine the possibility of a wider use of LacryDiag in practical ophthalmology. Materials and Methods: 50 patients with dry eye, burning and feeling of a foreign body complaints participated in this study. Mean age amounted to 28.85 ± 5.86 years. NITBUT was assessed with LacryDiag ocular surface analyzer. The data obtained was compared to the results of Invasive Tear Breakup Time (TBUT) – Norne test, and Schirmer I test.Results: both quantitative and qualitative values of tear film stability were analyzed in all participants. Based on results of the Schirmer I test, patients were divided into subgroups: where it was greater than 21 mm, between 11 and 20 mm, between 6 and 10 mm, and less than 5 mm/ The mean value of the Schirmer I test result amounted to 15.32 ± 6.05 mm/5 min, NITBUT amounted to 9.59 ± 4.37 s, while invasive TBUT amounted to 8.98 ± 3.79 s. It was found that invasive TBUT is in a strong direct correlation with NITBUT values (p <0.001, r = 0.554). No correlation was discovered between Schirmer I test results and TBUT (p = 0.15, r = 0.207) as well as between Schirmer I test result and NITBUT (p = 0.17, r =0.228). No correlation was found between the optical power of the cornea and the tear film structure abnormalities.Conclusion: a strong correlation was found between results of invasive and non-invasive methods of tear film breakup time assessment. No correlation was found between the optical power of the cornea and the tear film disruption. The non-invasive test was found to be an effective and objective method for diagnosing dry eye.

scholarly journals The Influence of Overnight Orthokeratology on Ocular Surface and Meibomian Gland Dysfunction in Teenagers with Myopia

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Xiu Wang ◽  
Jing Li ◽  
Rui Zhang ◽  
Na Li ◽  
Yi Pang ◽  
...  
Keyword(s):  
Ocular Surface ◽  
Tear Film ◽  
Meibomian Gland ◽  
Meibomian Gland Dysfunction ◽  
Ocular Surface Disease Index ◽  
Time Points ◽  
Meniscus Height ◽  
Significant Difference ◽  
Before And After

Purpose. The aim of this study was to investigate the effect of overnight orthokeratology (OOK) on ocular surface and meibomian gland dysfunction in teenagers with myopia. Methods. A total of 59 subjects were recruited in this prospective study. The following tests were performed before and after 1, 3, 6, 12, and 24 months of OOK lens wear, including ocular surface disease index (OSDI) questionnaire, slit-lamp examination, and Keratograph 5M. Results. No infectious keratitis occurred during the study. OSDI scores increased gradually and reached the maximum at 6 months of OOK wear (P<0.001). The meniscus height was significantly increased at 1 and 3 months after the initiation of OOK (P=0.006, P=0.035). The corneal fluorescein staining at 1, 3, 6, 12, and 24 months after wearing OOK were all increased than the prewearing level with significant difference (P=0.014, P=0.036, P<0.001, P<0.001, and P=0.008, respectively). The first and the average tear film NIKBUT were all higher than the prewearing level, but there was no significant difference between every follow-up time points (P>0.05). The lid margin abnormalities were significantly increased (P=0.003, P=0.038, and P=0.015) at 6, 12, and 24 months after the initiation of OOK. There was no significant difference in the meibomian gland orifice scores at each follow-up time points compared to the prewearing level (P>0.05). The meibomian gland lipid secretion scores after wearing OOK were higher than those of the prewearing level, however, without statistically significant difference (P>0.05). No significant differences of the degree of difficulty of lipid excretions were detected after the initiation of OOK (P>0.05). There was no significant difference in meibomian gland dropout scores between all follow-up time points and the prewearing level (P=1.000). Conclusion. OOK increased the symptoms of dry eye and decreased the function of tear film by affecting the meniscus height and BUT. OOK did not affect the function of meibomian glands.Clinical Study registration number: ChiCTR18000185708.

scholarly journals Topical Cyclosporine in Treatment of Post-LASIK Symptomatic Dry Eye

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Muhammad Saeed Iqbal ◽  
Kanwal Latif
Keyword(s):  
Dry Eye ◽  
Cyclosporine A ◽  
Ocular Surface ◽  
Case Series ◽  
Tear Film ◽  
Disease Index ◽  
Ocular Surface Disease ◽  
P Value ◽  
Statistical Interpretation ◽  
Ocular Surface Disease Index

Purpose:  To determine the role of 0.05% topical cyclosporine A (CsA) in treatment of symptomatic dry eye after LASIK (Laser-Assisted in Situ Keratomileusis). Study Design:  Interventional Case Series. Place and Duration of Study:  Ophthalmology Department, Sir Syed Hospital, Karachi, from July 2018 to Dec. 2019. Methods:  Seventy-five patients who underwent LASIK for myopic refractive error and presented with symptomatic dry eye and showed no response to artificial tears therapy after 1 month of LASIK were selected. The patient had ablation zone diameter of 6mm and flap diameter was 8.5mm to 9mm. Cyclisporine A 0.05% ophthalmic preparation was added to treatment regimen and response was observed at 1, 3 and 6 months. OSDI (Ocular Surface Disease Index) scores, Tear film break up time (TBUT), Schirmer's test (ST) values and Best Corrected Visual Acuity (BCVA) were recorded to analyze the treatment response at each visit. The statistical interpretation was done by using SPSS version 21. To interpret the correlation between pre-treatment and 6 month post treatment, Paired sample T test was applied with 95% Confidence Interval; CI and p-value of ≤ 0.05. Results:  The mean post-LASIK OSDI score of enrolled patients was 54.25 ± 10.81. After 6 months of treatment mean OSDI score was improved to 21.05 ± 5.13 (p < 0.001). Post-LASIK mean ST value was 5.2 ± 1.2 mm and mean TBUT value was 5.6 ± 1.3 seconds, which changed to 9.8 ± 1.0 mm and 8.9 ± 1.1 seconds respectively. BCVA improved from Log MAR 0.14 ± 0.09 to 0.01 ± 0.03 (p < 0.001). Conclusion:  Topical CsA 0.05% was effective in alleviating the symptoms of post-LASIK dry eye. Key Words:  LASIK, Dry eye, Ocular Surface Disease Index Score, Cyclosporine A.

Dry eye and Meibomian gland dysfunction evaluation in sarcoidosis patients

2021 ◽  
pp. 112067212110065
Author(s):  
Pelin Kiyat ◽  
Melis Palamar ◽  
Bengu Gerceker Turk
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Tear Film ◽  
Surface Damage ◽  
Meibomian Gland ◽  
Drop Out ◽  
Meibomian Gland Dysfunction ◽  
Ocular Surface Disease Index ◽  
Group 2 ◽  
Group 1

Purpose: To analyze the relation between Meibomian gland dysfunction, dry eye, and sarcoidosis. Materials and Methods: Twenty eyes of 10 sarcoidosis patients (Group 1) and 20 left eyes of 20 age-sex matched healthy volunteers (Group 2) were included. Presence of dry eye was evaluated with Schirmer 1 test, tear film break-up time (T-BUT), Oxford scale scoring, Ocular Surface Disease Index (OSDI) score assessments. A slit-lamp biomicroscope infrared filter (Topcon, SL-D701, IJssel, The Netherlands) was used to evaluate Meibomian glands. The drop-out ratio according to meibography was scored for each eyelid from grade 0 (no loss) through grade 3 (lost area >2/3 of the total Meibomian gland area). Results: Among dry eye tests mean Schirmer 1 and T-BUT values were lower and OSDI score was higher in Group 1 compared to Group 2 and the differences were statistically significant ( p = 0.017, p = 0.039, p = 0.003, respectively). In addition, the upper, lower and total meiboscores were statistically significantly higher in Group 1 ( p = 0.047, p = 0.003, p = 0.005, respectively). Conclusion: A significantly higher presence of dry eye and Meibomian gland drop out ratios was detected in sarcoidosis patients. It is important to monitor sarcoidosis patients for dry eye and Meibomian gland dysfunction and when detected, to treat adequately to prevent ocular surface damage.

scholarly journals Characteristics of dry eye patients with thick tear film lipid layers evaluated by a LipiView II interferometer

2021 ◽  
Author(s):  
Yunjin Lee ◽  
Joon Young Hyon ◽  
Hyun Sun Jeon
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Tear Film ◽  
Sensitivity Analyses ◽  
Lipid Layer ◽  
Ocular Surface Disease Index ◽  
Surface Staining ◽  
Physiologic Condition ◽  
Cautious Interpretation ◽  
Lipid Layers

Abstract Purpose To investigate the characteristics of eyes with dry eye disease (DED) whose lipid layer thickness (LLT) measured 100 nm on a LipiView II interferometer and compare the DED parameters of them to those with LLT below 100 nm. Methods A total of 201 eyes of 102 enrolled DED patients (mean age 56.4 ± 11.8 years) were classified into 3 groups according to their average LLT; < 60 nm as thin-LLT (n = 49), 60–99 nm as normal-LLT (n = 77), and 100 nm as thick-LLT (n = 75). LLT, meiboscore, Schirmer I test, tear film break-up time (TBUT), ocular surface staining (OSS), and ocular surface disease index (OSDI) were assessed. Results The OSS and TBUT were significantly worse in the thick-LLT group than in the normal-LLT group (p = 0.020, and p = 0.028, respectively). The OSDI was significantly higher in the thick-LLT group than in the thin-LLT group (p = 0.006). However, the meiboscore was not different among the three groups (p = 0.33). Age, OSS, and OSDI showed a positive correlation with LLT (r = 0.16, p = 0.023; r = 0.213, p = 0.003; and r = 0.338, p = 0.001, respectively). In sensitivity analyses, eyes with corneal erosions had a significantly higher average LLT (p = 0.015), higher OSDI (p = 0.009), shorter TBUT (p < 0.001), and shorter Schirmer I value (p = 0.024) than those with clear corneas. Conclusion The average LLT of eyes with corneal erosions was thicker than those without erosions, suggesting that the LLT of 100 nm in the eyes with corneal erosions should not be regarded as a stable physiologic condition. Cautious interpretation of LLT along with other dry eye parameters is required.

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