scholarly journals Noncontact Meibography in Patients with Keratoconus

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Engy Mohamed Mostafa ◽  
Marwa Mahmoud Abdellah ◽  
Ashraf Mostafa Elhawary ◽  
Amr Mounir

Purpose. To examine the morphological changes in the meibomian glands of patients with keratoconus as well as to study the relationship between these changes in the morphology and several tear film parameters. Methods. Examination of the meibomian gland (MG) of 300 keratoconus patients presenting to the center using infrared noncontact meibography system (Sirius, CSO, Italy) between January 2017—January 2019. 100 eyes of healthy individuals were also enrolled as a control group. Tear breakup time (TBUT) test and Schirmer test II were evaluated. Subjective symptoms were also assessed using Ocular Surface Disease Index (OSDI). Results. Mean age of keratoconus patients was 19 ± 12 years and 21 ± 14 years in control group. Average TBUT was 4.9 ± 2.1 sec. and average Schirmer test was 5.3 ± 2.2 mm which was significantly lower than control group (p=0.05). Meibomian gland dropout in the lower eyelid of the keratoconus group was as follows: grade 0 (no loss of meibomian glands): 100 eyes; grade 1 (gland dropout area <1/3 of the total meibomian glands): 85 eyes; grade 2 (gland dropout area 1/3 to 2/3): 68 eyes; and grade 3 (gland dropout >2/3): 47 eyes. Conclusion. Keratoconus shows significant meibomian gland dropout and distortion that can be recorded by noncontact meibography. Sirius meibography is a simple, cost-effective method of evaluating meibomian gland dropout as a part of the routine refractive examination.

2019 ◽  
Vol 12 (4) ◽  
pp. 13-18
Author(s):  
F. A. Bakhritdinova ◽  
E. N. Bilalov ◽  
B. A. Oralov ◽  
S. Sh. Mirrakhimova ◽  
J. O. Safarov ◽  
...  

To evaluate the efficiency of modern imaging methods of meibomian gland ducts and determine the tear film break-up time (TFBUT) during therapy in patients with the secondary dry eye syndrome (SDES) of allergic etiology.Material and methods. 66 patients aged 38.0 ± 1.5 with SDES after allergic conjunctivitis were examined. The patients were divided into 2 groups depending on the therapy administered. The main group (n = 33) received Oftalron as tear replacement therapy for 20 days, 2 drops, 2 times a day. The patients of the comparison group (n = 33) used Super Optic HydroBalance for 20 days, 2 drops 2 times a day. The control group consisted of 25 healthy subjects without eye pathology. All subjects underwent Schirmer’s tests I and II, as well as TFBUT and meibography on an automatic refractokeratometer HRK-9000A (Huvitz, Korea).Results. In both SDES groups, a significant decrease of the OSDI (Ocular Surface Disease Index) in the treatment process was observed (p ≤ 0.05), which corresponded to low intensity of SDES symptoms. In both groups morphofunctional changes of meibomian glands of 1 and 2 stages prevailed. The most significant dynamics was observed in TFBUT results, they were significantly lower in comparison with the similar indexes in the patients of the control group.Conclusion. Specific modes of autorefractokeratometer HRK-9000A allow receiving objective information about the condition of the tear film and high-quality imaging of meibomian glands, which allow expanding possibilities of complex diagnostics of various forms of DES.


2021 ◽  
pp. 112067212110070
Author(s):  
Ahmad Reza Taheri ◽  
Elahe Allahyari ◽  
Mostafa Zeinaly ◽  
Malihe Nikandish

Background: To investigate aqueous and lipid layers of the tear film as well as meibomian gland structure by meibography in psoriatic patients in the Iranian population. Methods: This case-control study was conducted on 31 psoriasis patients and 31 controls in Birjand University of Medical Sciences in 2018. The sampling method was available from the date of approval of the proposal in the Ethics Committee until it reached the sample size. After entering the study, patients were examined individually with a slit lamp. Then, Ocular Surface Disease Index (OSDI) score assessment, Schirmer test 1, lacrimal measurement with SM tube, tear break-up time (TBUT), and meibomian glands imaging by SBM Sistemi were done. Finally, the obtained data were entered into SPSS 15 software and analyzed at a significant level of less than 0.05. Results: The two groups were matched according to age and gender ( p = 0.39 and p = 0.80; respectively). With the exception of the SM Tube score, the mean of all tear film and meibomian glands functional and structural parameters including Schirmer test 1, TBUT, and meibography were significantly different between patients and control groups. Moreover, the proportion of abnormal OSDI (OSDI ⩾ 13) and the dry eye was significantly higher in psoriasis patients. Conclusions: Psoriasis is associated with dry eye as well as meibomian glands atrophy and dysfunction.


2021 ◽  
pp. 112067212110087
Author(s):  
Ersin Muhafiz ◽  
Erdinç Bozkurt ◽  
Remzi Erten

Purpose: To evaluate the tear parameters, meibomian glands and lid margin and tarsal conjunctival impression cytology in patients with conjunctivochalasis (CCH). Methods: The study included 57 patients diagnosed with CCH and 35 healthy volunteers. Tear break-up time (TBUT) was measured and Schirmer test was performed. Meibomian gland morphologies, dropout rates, and meiboscores were evaluated using meibography. Finally, impression cytology samples were taken by pressing the impression filters on the lower lid margin and lower tarsal conjunctiva. The samples were evaluated according to the Nelson grading system. Results: Schirmer test was longer and TBUT was shorter in the study group ( p = 0.035 and p < 0.001, respectively). The median of meibomian gland dropout rate was 33.45% (Interquartile range [IQR]; 23.17%–49.75%) and 18.80% (IQR; 12.35%–26.50%) in the study and control groups, respectively ( p < 0.001). There was no significant difference in terms of lid-margin cytology between the two groups ( p = 0.481). In tarsal conjunctiva cytology, the median value of Nelson grade of the study group was 2 (IQR; 1–2) and that of the control group was 1 (IQR; 1–2) ( p = 0.040). When Nelson grade-2 and above was accepted as the pathological limit, it was found that 27.5% of the study group and 15.2% of the control group showed pathological findings ( p = 0.204). Conclusions: In patients with CCH, damage occurs in the tarsal conjunctiva with the effects of redundant conjunctival folds. In these patients, atrophy occurs in the meibomian glands and tear stability is impaired. Therefore, CCH should not be overlooked in clinical practice.


2021 ◽  
pp. 112067212110183
Author(s):  
Cafer Tanriverdi ◽  
Burcu Nurozler Tabakci ◽  
Sumbule Donmez

Purpose: This study aimed to analyze the changes in meibomian glands (MGs) and tear film layer over time in patients taking systemic isotretinoin treatment. Methods: Patients who received systemic isotretinoin treatment between 4 and 8 months were prospectively followed up. In addition to full ophthalmologic examination, MG dysfunction (MGD), noncontact meibography, noninvasive and invasive tear break-up time (TBUT), ocular surface disease index (OSDI), corneal staining, and eyelid margin abnormality scores were recorded before, during, and after treatment. Results: A total of 88 eyes of 88 patients were included in the study. The right eyes of all the patients were included. The mean age of the patients was 21 ± 2.9 years. Of the 88 patients, 70 (79.6%) were females and 18 (20.4%) were males. Before the treatment, MGD, noncontact meibography, first noninvasive TBUT, mean noninvasive TBUT, invasive TBUT, OSDI, corneal staining, and eyelid margin abnormality scores were 0.29 ± 0.45, 4.93 ± 3.50, 13.78 ± 3.89 s, 14.47 ± 3.09 s, 12.96 ± 3.61 s, 0.54 ± 1.00, 0.04 ± 0.20, and 0.09 ± 0.28, respectively. Twelve months after the end of treatment, the scores were 0.97 ± 0.87 ( p < 0.001), 9.62 ± 3.89 ( p < 0.001), 11.24 ± 3.52 s ( p < 0.001), 12.34 ± 3.02 s ( p < 0.001), 11.31 ± 2.90 s ( p < 0.001), 1.90 ± 2.44 ( p < 0.001), 0.20 ± 0.40 ( p < 0.001), and 0.56 ± 0.49 ( p < 0.001), respectively. Conclusion: Systemic isotretinoin treatment causes morphological changes in the MGs. However, this treatment may negatively affect the tear film layer of patients. Some of these changes may persist for a long time even if the treatment is discontinued.


2019 ◽  
Author(s):  
Ana Cláudia Viana Wanzeler ◽  
Italo Antunes França Barbosa ◽  
Bruna Duarte ◽  
Eduardo Buzolin Barbosa ◽  
Daniel Almeida Borges ◽  
...  

AbstractPurposeTo analyze how ocular surface parameters correlate to pterygium and investigate the possible impact on tear film and meibomian glands.Methodswe investigated objective parameters of the ocular surface such as conjunctival hyperemia, tear film stability and volume, meibomian gland dysfunction, dry eye disease, corneal topography comparing healthy individuals and correlating with the pterygium clinical presentation.ResultsA total of 83 patients were included. Corneal astigmatism induction was 2.65 ± 2.52 D (0.4-11.8). The impact of pterygium on the ocular surface parameters compared to matched controls was seen in: conjunctival hyperemia (control 1.55±0.39/pterygium 2.14±0.69; p=0.0001), tear meniscus height (control 0.24±0.05 mm/pterygium 0.36±0.14mm; p 0.0002), meiboscore lower eyelid (control 0.29±0.64/pterygium 1.38±0.95; p 0.0001) and meiboscore upper eyelid (control 0.53±0.62/pterygium 0.98±0.75; p=0.0083). We found a high number of pterygium patients (88%) presented meibomian gland alterations. Interestingly, meibomian gland loss was coincident to the localization of the pterygium in 54% of the upper and 77% lower lids.ConclusionPterygium greatly impacts on ocular surface by inducing direct alterations in the pattern of meibomian glands besides corneal irregularities, conjunctival hyperemia and lacrimal film alterations, inducing significant symptoms and potential signs of dysfunction.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ricaurte Ramiro Crespo-Treviño ◽  
Anna Karen Salinas-Sánchez ◽  
Francisco Amparo ◽  
Manuel Garza-Leon

AbstractMany recent studies have showed that morphological changes are one of the key signs of meibomian gland disease (MGD). These changes can be seen even before symptom onset, potentially underestimating the prevalence of MGD; however, until now, there is no conclusive information about the impact of meibomian gland (MG) morphology in tear film physiology and disease. This study aimed to investigate the prevalence of anatomical and morphological MG alterations between patients with evaporative dry eye disease (DED) and healthy controls. Retrospective chart review of seventy-five patients with evaporative DED and healthy individuals who had dry eye assessments included Ocular Surface Disease Index questionnaire, meibum quality, meibum expressibility, lid margin abnormality, ocular staining, non-invasive tear film break-up time, and meibography. We did not find significant differences in MG alterations in the upper lid between healthy and DED subjects. Patients with evaporative DED presented MG alterations in the lower lid more frequently than healthy subjects (54.8 vs. 30.3%; p = 0.03). The presence of shortened glands was the only MG alteration that was more prevalent in the lower lid in dry-eye patients than in healthy subjects (p < 0.05). Subjects with evaporative DED presented more alterations in the lower lid than healthy subjects.


2016 ◽  
Vol 9 (1) ◽  
pp. 5-12 ◽  
Author(s):  
Vitaly V Potemkin ◽  
Vyacheslav V Rakhmanov ◽  
Elena V Ageeva ◽  
Aisa S Alchinova ◽  
Elena V Meshveliani

The state of the ocular surface and visual functions depends on ocular adnexal tissues. Involutional changes of the eyelids and meibomian glands occur with age. There is a lack of information about possible relationship between involutional lower lid malposition and meibomian gland dysfunction. Purpose. To evaluate meibomian glands dysfunction in patients with lower eyelid malposition. Methods. Two groups of patients were enrolled: 26 patients (52 eyelids) with involutional lower eyelid malposition and a control group of 22 patients (44 eyelids) without eyelid malposition. Groups were comparable by age and sex. The clinical examination included general eye examination; evaluation of the degree of the eyelids laxity, signs of retractors dehiscence and clinical score of meibomian gland’s dysfunction (The International Workshop on Meibomian Gland Dysfunction, 2011). Results. Atonic eyelid changes and meibomian gland dysfunction were significantly more expressed in patients with involutional eyelid malposition (р < 0,05). Conclusion. Our study showed an age-independent clinical relationship between involutional lower eyelid malposition and dysfunction of meibomian glands.


2021 ◽  
Author(s):  
Ricaurte Ramiro Crespo-Treviño ◽  
Anna Karen Salinas-Sánchez ◽  
Francisco Amparo ◽  
Manuel Garza-Leon

Abstract Many recent studies have demonstrated that morphological changes are one of the key signs of Meibomian gland disease (MGD) . These changes can be seen even before symptom onset, potentially underestimating the prevalence of MGD; however, Until now, there is no conclusive information about the impact of MG morphology in tear film physiology and disease. This study aimed to investigate the prevalence of anatomical and morphological MG alterations between patients with evapo-rative DED and healthy controls. Retrospective chart review of Seventy-five patients with evaporative dry eye and healthy individuals who had dry eye assesments included Ocular Surface Disease Index questionnaire, Meibum quality, meibum expressibility, lid margin abnormality, ocular staining, non-invasive tear film break-up time, and Meibography. We did not find significant differences in MG alterations in the upper lid between healthy and dry-eye subjects. Patients with evaporative dry eye presented MG alterations in the lower lid more frequently than healthy subjects (54.8 vs 30.3%; p=0.03). The presence of shortened glands was the only MG alteration that was more prevalent in the lower lid in dry-eye patients than in healthy subjects (p <0.05). Subjects with evaporative dry eye presented more alterations in the lower lid than healthy subjects.


2021 ◽  
Author(s):  
Xin Wang ◽  
Xiaojing Fan ◽  
Yaying Wu ◽  
Yujie Mou ◽  
Jinjin Min ◽  
...  

Abstract This study was desgined to find a reliable and convenient indicator (a modified Schirmer test) to improve the accuracy of assessing tear secretion and diagnosing dry eye. This is a prospective continuous study on 180 volunteers. Schirmer test I without anesthesia was performed once on both eyes to determine the value of normal Schirmer test. The values of tear secretion were recorded in each minute. Examined individuals also underwent other examinations: the standard patient evaluation of eye dryness (SPEED), the Ocular Surface Disease Index (OSDI), fluorescein stain, tear film breakup time (BUT), and Meibomian gland (MG)grading. The participants were divided into two groups: dry eye (DE) groupand non-dry eye (ND) group. The mean age was 39.41±14.05 years in DE group and 37.62±13.17 in ND group. The value of 2-minute Schirmer test, rear 3-minute Schirmer test, rear 4-minute Schirmer test and 5-minute Schirmer test was 5.36±4.63, 5.57±2.11, 7.21±4.13 and 10.93±6.30 respectively in DE group. And these indicators was 8.25±6.80, 2.73±2.31, 7.36±3.42, 11.84±6.16 in ND group. The rear 4-minute ST has significant correlation with OSDI and SPEED in DE group (r =-0.242/-0.183) and in ND gruop(r =-0.316 /-0.373). Meanwhile, rear 4-minute ST had stronger connection with fBUT(r =0.159) and MG (r =-0.162) in DE gruop. And rear 4-minute ST also had higher accuracy in diagnosing severe dry eye and borderline dry eye.The rear 4-minute Schirmer test may be a supplement indicator in assessing tear secretion and diagnosing dry eye.


2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Di Chen ◽  
Xiaowei Liu ◽  
Ying Li ◽  
Hui Guan ◽  
Fuquan Zhang

Background. Radiotherapy (RT) has widely been used to treat ocular tumors, yet the impact of orbital radiation to the meibomian gland has rarely been studied. Our study aims at evaluating the bilateral meibomian gland structure and function 12 months after unilateral orbital RT in patients with ocular tumors. Methods. An observational case-control study. A total of 10 eyes 12 months after unilateral orbital RT, 10 contralateral eyes, and 10 normal controls were enrolled. Meibomian gland loss (MGL), lipid layer thickness (LLT), tear film breakup time (TBUT), Schirmer I test, and cornea fluorescein staining were measured. Ocular Surface Disease Index (OSDI) of the RT patients was assessed and compared with normal controls. Results. The cumulative median radiotherapy dosage for the patients was 45 (range: 30, 70) Gy. The OSDI score of the patients was significantly greater than the normal controls (22.92 (range: 10.42, 37.50) vs 6.25 (range: 2.08, 10.42), p≤0.001). Significant differences of upper MGL, lower MGL, LLT, and TBUT were found between the diseased eyes and normal controls (37.79% (range: 12.87, 92.41) vs 12.63% (range: 6.13, 42.34), p=0.007; 61.31% (range: 44.67, 87.98) vs 15.53% (range: 7.65, 45.13), p≤0.001; 40 ICU (range: 23, 100) vs 81.5 ICU (range: 54, 100), p=0.007; 3.5 s (range: 2, 8) vs 6.5 s (range: 5, 10), p=0.002). The upper MGL and TBUT of the contralateral eyes were also considerably damaged compared with normal controls. Lower eyelid MGL and cornea staining score of the diseased eye were significantly correlated with radiation dosage (r = 0.913 and 0.680; p=0.001 and 0.044, respectively). Conclusion. Orbital radiotherapy could cause significant damage to the meibomian gland structure and function, not only the diseased eyes but also the contralateral eyes.


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