Comparative analysis of incidence of dry eye syndrome after ReLEx SMILE and FemtoLASIK keratorefractive surgeries

Author(s):  
A.D. Pilipenko ◽  
◽  
R.A. Burya ◽  
A.V. Romanova ◽  
E.L. Sorokin ◽  
...  

The main factor in pathogenesis of postoperative dry eye syndrome (DES) is damage to subbasal nerve plexus and stromal nerve endings. Taking into account the different principles of photorefractive effect on cornea of FemtoLASIK and ReLEx SMILE technologies, we decided on our own clinical experience to evaluate incidence of this undesirable complication. Purpose. Comparative study of frequency and timing of relief of postoperative DES after FemtoLASIK and ReLEx SMILE in patients with myopia. Material and methods. The study involved 32 patients (64 eyes) with varying degrees of myopia. The patients were divided into 2 groups: 1st group - 17 patients (34 eyes) after FemtoLASIK surgery, 2nd group - 15 people (30 eyes) after ReLEx SMILE procedure. Control group consist of 15 patients with comparable myopia who had not undergone refractive surgery was also observed. Patients underwent an assessment of the OSDI index, Norn and Schirmer tests, as well as degree of staining of anterior ocular surface 1, 6 and 12 months after refractive surgery. Results. There was statistically significant difference in total tear production, in tear breakup time (TBUT) and in the OSDI index between study groups 1 month after surgery in favor of ReLEx SMILE procedure. After 6 months, TBUT after FemtoLASIK significantly differed from control values. 12 months after surgery, studied parameters did not differ significantly from control. Conclusion. According to our datas, ReLEx SMILE procedure has lower negative effect on ocular surface compared to FemtoLASIK technique, which is manifested by less pronounced subjective symptoms of DES, as well as their faster relief. Key words: dry eye syndrome, ReLEx SMILE, FemtoLASIK.

2020 ◽  
Author(s):  
Haiting Chen ◽  
Xueyan Feng ◽  
Guangzeng Niu ◽  
Yuxiang Fan

<b><i>Objectives:</i></b> To evaluate dry eye (DE) and associated meibomian gland dysfunction parameters after Implantable Collamer Lens (ICL) surgery. <b><i>Methods:</i></b> This is a prospective observational case series. Patients who underwent ICL implantation without previous ocular diseases or ophthalmic treatments were enrolled. Their Ocular Surface Disease Index (OSDI), noninvasive breakup time (NIBUT), meibography, slit-lamp examination of the lid margin, corneal fluorescein staining (CFS), and Schirmer test I were examined preoperatively and at 1 and 3 months postoperatively. <b><i>Results:</i></b> A total of 117 eyes of 60 patients were enrolled, and 107 eyes completed 3-month follow-up period. OSDI, lid marginal abnormality, and meibomian gland (MG) secretion, and meibum quality score were significantly higher at 1 month postoperatively and recovered partially at 3 months after surgeries, while NIBUT was significantly decreased all the time. Patients with previous DE symptoms (OSDI score ≥12) showed not only lower Schirmer and TBUT values but also higher CFS, lid margin score, MG loss, MG secretion, and meibum quality scores compared with those in the control group after operations. Low Schirmer, NIBUT values, and high meibum quality score were determined as risk factors for DE symptoms after ICL surgery. <b><i>Conclusions:</i></b> ICL implantation has a bad influence on the ocular surface and MG functions. The influence may be more obvious in patients with existing DE.


2009 ◽  
Vol 19 (4) ◽  
pp. 572-579 ◽  
Author(s):  
Gemma Caterina Maria Rossi ◽  
Carmine Tinelli ◽  
Gian Maria Pasinetti ◽  
Giovanni Milano ◽  
Paolo Emilio Bianchi

Purpose To verify the presence of dry eye syndrome (DES) in treated patients with glaucoma and to analyze DES's impact on the patients' quality of life (QOL) versus the control group. Methods In this observational cross-sectional study, 61 patients were enrolled at a clinical practice. Patients were divided into three groups by number of glaucoma drops instilled per day (G1=1 drop/day, G2=2 drops/day, G3=3 drops/day). A control group of 20 subjects was also selected (G0). All subjects were submitted to a complete ocular examination (including tear function and ocular surface status) and completed the 25-item National Eye Institute Visual Function Questionnaire (NEI-VFQ), Glaucoma Symptom Scale (GSS) questionnaire, and Ocular Surface Disease Index (OSDI). DES was defined as presence of punctate keratitis and decreased break-up time. Statistical analysis was performed applying the Kruskal-Wallis analysis of variance and Mann-Whitney U tests (to compare median values between groups) as well as the χ2 and Fisher test (to verify significant differences). Results A total of 40% of G3 and 39% of G2 patients presented DES versus 11% of G1 and 5% of G0 (p=0.01). QOL was significantly influenced and altered (NEI-VFQ 25 total mean and GSS total mean and symptoms average: p=0.0085, p=0.006, and p=0.03, respectively). OSDI pointed out differences by group: 26% of G2 and 15% of G3 presented moderate OSDI and 15% of G3 and 8.7% of G2 severe OSDI (p>0.05). Conclusions Patients with topically treated glaucoma present DES more often than a similar control group (p=0.01). The presence of DES negatively influences the patient's QOL. The patients with glaucoma's ocular surface status should be evaluated regularly to ensure the timely detection and treatment of pathologic signs on the ocular surface.


2020 ◽  
Vol 17 (3) ◽  
pp. 344-350
Author(s):  
S. V. Trufanov ◽  
E. V. Sukhanova ◽  
A. A. Tyurina

Modern corneal refractive surgery provides high efficiency, safety, predictability and stability of the different ametropia kinds correction’s clinically-functional results. However, in overwhelming percentage of cases, having spent some time after surgery patients complain about discomfort, eyes dryness, burning, feel gritty, redness, blurred and vision instability. Complaints mentioned above are caused by the appearance of transitory dry eye syndrome. Main etiology and pathogenesis factors of this disease are presented in this review. The results of dry eye syndrome classical diagnosis methods have been analyzed, as well as modern techniques, characterized by high specificity and sensitivity, which allow to increase the dry eye’s diagnostics accuracy. The study of the dry syndrome after corneal refractive surgery is devoted to a huge number of works of domestic and foreign authors. However, at present time there is no unique algorithm for assessing the damage of the ocular surface before and after corneal refractive surgery, which would include a set of high-precision and specific techniques for quickly and reliably evaluate the severity of dry eye syndrome, allowing to develop preventive measures and pathogenetically oriented treatment and, thereby, accelerate rehabilitation of patients after surgery. Research continuation is needed in this direction.


2018 ◽  
Vol 15 (2) ◽  
pp. 200-206
Author(s):  
S. A. Korotkikh ◽  
A. E. Bogachev ◽  
A. S. Shamkin

The results of observation of patients who underwent vision eximerlaser correction by the LASEK method regarding medium degree of hyperopia were analyzed.Purpose:to investigate the severity of the «dry eye» syndrome and corneal subepithelial fibroplasia in patients after laser correction of  hyperopia by the LASEK method, and their prevention by reducing  the preservative action on the eye surface.Patients and methods.The study included 40 patients (76 eyes), aged 21–46 years (32.98 ± 1.79) who underwent LASEK surgery for  moderate hyperopia (4.03 ± 0.38 D). Patients were divided into two  groups: 1) control group (20 patients, 37 eyes) — postoperative  therapy included the corneoprotector “Stilavit®” and the preparation  of hyaluronic acid “Oksial®”, containing preservatives;  2) the study group (20 patients, 39 eyes) — postoperative therapy  included the corneoprotector “Hilozar-comod®” and the artificial tear  preparation “Hilo-comod®”, which did not contain reservatives. Ophthalmic examination included, in addition to standard diagnostic  methods, the Norn test, the Schirmer test, the staining of the eye  surface with lissamine green. In addition, a questionnaire was  conducted on a modified OSDI questionnaire; there a section  characterizing the quality of vision (section B) was removed.Results.The analysis of the obtained data showed that in the study group there was less pronounced “dry eye” syndrome at 3,6,12  months after the operation. The maximum difference in the  indicators of the “dry eye” syndrome between the groups was at 3  and 6 months of the postoperative period. When evaluating corneal  subepithelial fibroplasia, maximum attention was paid to the  frequency and the intensity index. It was shown a significant  difference in the intensity of the haze between the study group and the control group by 26.1 % at 3 months, by 62.2 % at 6  months and by 65.3 % 12 months after the operation. Conclusion.Nonconservative therapy with sodium hyaluronate and  dexapanthenol in the early postoperative period and only sodium  hydrolurate allows to reduce the severity of the dry eye syndrome  after laser correction of hypermetropia and, as a result, to reduce  the intensity of haze development by 65.3 %, and its frequency on 11,5 %.


2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Jing Zhang ◽  
Zhengzheng Wu ◽  
Liangnan Sun ◽  
Xin-hua Liu

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.


The Eye ◽  
2021 ◽  
Vol 23 (1) ◽  
pp. 15-22
Author(s):  
K. A. Mubarakova ◽  
S. A. Mukhanov ◽  
I. F. Saliyev ◽  
N. H. Habibullayeva

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.


2006 ◽  
Vol 34 (02) ◽  
pp. 197-206 ◽  
Author(s):  
Kuo-Lieh Tseng ◽  
Hsu-Jan Liu ◽  
Kam-Yuen Tso ◽  
Lin-Chung Woung ◽  
Yi-Chang Su ◽  
...  

The present study was designed as a clinical trial to assess the efficacy of acupuncture and silver spike point (SSP) electro-therapy on dry eye syndrome. A total of 43 dry eye syndrome patients participated in the present study. Subjects were divided into control, acupuncture and SSP electro-therapy groups. The three groups were all given artificial tears treatment. Patients in the treatment groups were given two 20-minute treatments of either acupuncture or SSP. Assessment was carried out using the Basal Schirmer test, tear break-up time (BUT), visual analog scale (VAS) and an overall score of eye condition. After four weeks of treatment, both the acupuncture and SSP treatment groups showed improvements over the control group, in Schirmer tests of the left eye and average tearing of both eyes. After 8 weeks of treatment, both treatment groups showed improvements over the control group both in Schirmer tests and VAS. For the right eye, treatment groups showed significant improvements in Schirmer test and VAS versus the control group averages for both eyes. There was no significant difference in BUT at any time. Comparing scores before and after treatment, the acupuncture and SSP groups showed a significant improvement compared to the control group. The acupuncture group showed a greater 8-week improvement in Schirmer tests scores compared to the SSP group. However, the SSP group patients used fewer applications of artificial tears. Acupuncture and SSP electro-therapy were effective in increasing tear secretion in patients with dry eye syndrome. The SSP electro-therapy not only alleviated dry eye syndrome, but also reduced the number of applications of artificial tears necessary.


PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247168
Author(s):  
Tae Seen Kang ◽  
Jin Cho ◽  
Jaeyoung Kim ◽  
Jae Yun Sung ◽  
Ju Mi Kim ◽  
...  

Objective To find preoperative screening criteria for dry eye syndrome (DES) that present after successful endoscopic dacryocystorhinostomy (EDCR). Methods We retrospectively analyzed medical records of 110 patients who underwent EDCR for nasolacrimal duct obstruction. DES diagnostic criteria were defined as tear break-up time (TBUT) less than 10 seconds, and ocular surface disease index (OSDI) score greater than 13 points. After EDCR, patients were divided into DES group and control group according to the DES diagnostic criteria. Preoperative OSDI score alone or in combination of preoperative TBUT and OSDI score were used to find screening criteria, which could discriminate the two groups preoperatively with a high positive predictive value (PPV). Criteria A was set same as the diagnostic criteria of DES, and Criteria B and C were set to improve PPV by increasing specificity while maintaining similar sensitivity to Criteria A. Results Thirty patients (27.3%) were diagnosed with DES after EDCR, while 80 patients (72.7%) were normal. In patients with DES, preoperative TBUT was not different (p = 0.851), but OSDI score was significantly higher (p<0.001). Criteria A showed a sensitivity of 73.3%, specificity of 55.0%, and PPV of 38.0%. Criteria B and C excluded preoperative TBUT, which had no difference between the two groups, and set screening criteria with preoperative OSDI score alone. Criteria B (preoperative OSDI score of 19.6 points or more) showed a sensitivity of 75.0%, specificity of 60.6%, PPV of 41.7% and AUC of 0.739 (p < 0.001). Criteria C was consisted of 5 out of 12 OSDI items that showed significant differences between the two groups; blurred vision, reading, working with a computer, low humidity, and air conditioning. Criteria C (preoperative 5-item OSDI score of 24.4 points or more) was a better predictability, with a sensitivity of 75.0%, specificity of 71.3%, PPV of 49.5%, and AUC of 0.804 (p < 0.001). The AUC of Criteria C was significantly higher than that of Criteria B (p = 0.0037). Conclusion DES occurred after successful EDCR in 27.3% of patients, and an OSDI questionnaire helped to screen DES. The predictability could improve using the modified OSDI score which showed noticeable difference in five OSDI items before and after EDCR.


Author(s):  
Jitender Phogat ◽  
Ritesh Verma ◽  
Manisha Rathi ◽  
Sumit Sachdeva ◽  
Latika Pandey

Background: An even and smooth ocular surface is vital for the functioning and comfort of the eyes. Dry eye is a group of disorders of the tear film which is due to either decreased production or increased evaporation and is associated with symptoms of ocular discomfort. Smoking and drugs have been suggested as risk factors in various studies. Cyclosporine has been shown to reduce the cell-mediated inflammatory reactions associated with the inflammatory ocular surface disease.Methods: 50 eyes of 25 patients suffering from dry-eye syndrome were included in this study. Three major ocular symptoms of dry eye i.e., ocular pain, burning, and foreign body sensation were studied in this study. Each symptom was given a score from 0 to 1 so that the ocular symptoms were given a score from 0 to 3.Results: There was a significant reduction in ocular symptoms score (OSS) 2.25 before treatment to 0.6 after 3 months of treatment (p=0.01). In addition, the Schirmer's paper test scores improved from 1.23 mm to 5.91 mm, which is significantly different (p=0.001). The tear film breakup time also improved from 5.49s to 9.86s.Conclusions: Cyclosporine 0.05% has been established to be effective and safe in our study.


2021 ◽  
Author(s):  
Hengameh sadeghi-hasanvand ◽  
Parastou Kordestani-Moghadam ◽  
Farnoosh irandoost ◽  
Seyed hadi ali ◽  
Tahereh Toulabi ◽  
...  

Abstract Objective: Dry eye is one of the complications of hospitalization in ICUs. This study was conducted to assess the effectiveness of a Balanced Salt Solution (BSS) on dry eyes in comatose patients. This clinical trial was conducted in 2019 on 34 patients admitted to the ICUs. The control group received sterile eye ointment with artificial tears (2 drops every 6 hours) and a tape over the eye. The trial group also received BSS (2 drops every 6 hours) in the opposite eye over five days. The patients' dry eye was examined on first day and sixth day of the study using Schirmer’s Test (ST) and the Tear Breakup Time Test (TBUT). The data were analyzed in SPSS-21.Results: The results of the paired T-test based on ST and TBUT showed no significant change from first day one to sixth day in the BSS-receiving group (P>0.999 and P=0.187, respectively). Furthermore, no significant difference was observed between the two groups in the mean score of dry eye after eliminating the effect of the demographic and clinical variables (P=0.947). The administration of this solution by nurses seems to be an effective method for preventing the progression of dry eye in ICU patients.


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