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Study to Find the Burden of Dry Eye in Diabetic Patients in a Tertiary Care Hospital

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Study to Find the Burden of Dry Eye in Diabetic Patients in a Tertiary Care Hospital International Journal of Science and Healthcare Research Vol.5; Issue: 2; April-June 2020 Website: ijshr.com Original Research Article ISSN: 2455-7587 Study to Find the Burden of Dry Eye in Diabetic Patients in a Tertiary Care Hospital Vivek Kumar1, Ratnesh2, Swati3 1Department of Ophthalmology, Dumka Medical College, Dumka, Jharkhand, India 2Department of Community Medicine, Dumka Medical College, Dumka, Jharkhand, India 3Department of Ophthalmology, Aravind Eye Hospital, Madurai, Tamil Nadu, India Corresponding Author: Swati ABSTRACT discomfort, visual disturbance, and tear-film instability with potential damage to the Introduction: Dry eye refers to reduced tear ocular surface. It is accompanied by production and/or excessive tear evaporation in increased osmolarity of the tear film and the tear film of the eye and is often associated inflammation of the ocular surface. (1) with symptoms of ocular discomfort. Dry It is due to reduced tear production eye disease is more commonly seen in people and/or excessive tear evaporation associated with type 2 diabetes. The objective of the (2) present study is to find the burden of dry eye in with symptoms of ocular discomfort. diabetic patients. Symptoms of dry eye include pain, Methodology: A hospital based observational heaviness, foreign body sensation, study was conducted among the diabetic grittiness, ocular fatigue, redness, burning, patients registered during October 2017 to stinging, photophobia and reflex watering September 2018 under Regional institute of due to corneal irritation. (3) Ophthalmology (RIO), RIMS, Ranchi. Previous study shows that dry eye Purposive sampling was carried out and a total has been associated with diabetes mellitus of 54 diabetic patients were interviewed. which was confirmed with Schirmer’s test. Logistic regression (LR) was used for statistical (4-6) analysis. Results and Conclusion: In the present study, Dry eye syndrome (DES) is also total 54 diabetic patients were interviewed in referred as Keratoconjunctivitis sicca, which which 31 (57.4%) had dry eye. Most of the is more commonly associated with diabetes study participant belonged to the age group of mellitus (DM). Risk of DES is more 41 - 60 years (51.9%); 55.6% (30) were female. prevalent in people who suffer from 51.85% of the cases were having diabetic advanced stages of diabetic retinopathy. (7) retinopathy. By applying LR the strength of Poor glycemic control affects both the association for dry eye was seen more in > 60 anterior and the posterior segments of the years of age group, having diabetes > 5 years eye and increasing the prevalence of and patients having diabetic retinopathy which diabetes-associated DES (DMDES). The were found to be statistically significant. risk of dry eye is related with the elevated Keywords: Dry eye, Diabetes, Observational levels of glycated hemoglobin: the higher the level the higher the incidence of dry eye. study (8) Diabetic patients have a high risk for dry INTRODUCTION eye because they have chances of Dry eye workshop 2007(DEWS) developing decreased corneal sensitivity, neuropathy involving innervations of defined dry-eye syndrome as “a (9) multifactorial disease of the tears and ocular lacrimal gland and loss of goblet cells. surface that results in symptoms of International Journal of Science and Healthcare Research (www.ijshr.com) 193 Vol.5; Issue: 2; April-June 2020 Vivek Kumar et.al. Study to find the burden of dry eye in diabetic patients in a tertiary care hospital Dry eye is recognised as a participants and confidentiality was assured. disturbance of the Lacrimal Functional Unit Patients who were not willing to give (LFU), an integrated system comprising the consent; not having DM; patients with pre- lacrimal gland, ocular surface (cornea, existing systemic disease like Sjogren’s conjunctiva and Meibomian glands) and syndrome, connective tissue diseases lids, and the sensory and motor nerves that (Rheumatoid arthritis, Wegener’s connect them. This functional unit controls granulomatosis, Polyarteritis nodosa, etc.) the major components of the tear film, and patients on medications with Anti- transparency of cornea, and the quality of histaminics, Anto-cholinergic group of image projected onto the retina. (4) drugs, Tricyclic Antidepressants, topical or Several previous studies have systemic beta blockers, oral contraceptive investigated the relationship between pills, systemic or topical NSAIDS, long diabetes and dry eyes. Although some found term Anti-glaucoma medications, post an increased risk for dry eyes among ocular surgery, ocular trauma which causes diabetic individuals, (10-12) others found dry eye are specifically proven were neither a significant decrease in the amount excluded from the study. of aqueous tear flow nor impaired tear All the patients selected for study breakup time among insulin-treated diabetic have undergone routine investigations and patients. (13) were subjected to Dry Eye Questionnaire. There are only three published Schirmer’s test, Tear Break Up Time reports on prevalence of dry eye among (TBUT) and Fluorescein staining was used hospital based population from North and to diagnose dry eye. Eastern India and the prevalence varies Diagnostic Tests between 18.4% and 40.8% (Gupta SK-2002, For patients with mild irritation Sahai A-2005, Gupta N-2010, and Basak symptoms: a reduced tear breakup time SK-2012). (12-14) One small study from high (TBUT) may indicate an unstable tear altitude showed a higher prevalence of 54% film with normal aqueous tear (Gupta N-2008). (13) production, and there may be minimal or Our study aims to find the burden of dry eye no dye staining of the ocular surface in diabetic patients and associated risk (Pflugfelder SC-1998)[60]. factors. For patients with moderate to severe symptoms: the diagnosis can be made by MATERIALS & METHODS using one or more of the following tests: A hospital based observational study o Tear break-up time (TBUT) test – to was conducted from October 2017 to evaluate tear-film stability; September 2018 to determine the burden of o Ocular surface dye staining dry eye in diabetic patients in Regional (Fluorescein/rose Bengal/Lissamine institute of Ophthalmology (RIO), RIMS, green) test: to evaluate ocular Ranchi by using a predesigned, pretested surface disease (KCS); semi-structured questionnaire. All the o Schirmer’s test: to evaluate aqueous patients getting registered in EYE OPD, tear production. These tests should RIO, RIMS, RANCHI from October 2017 be performed in this sequence to September 2018 and having diabetes because the Schirmer’s test can mellitus (DM) were taken into consideration disrupt tear film stability and cause for evaluation of Dry Eye Syndrome. A total false-positive ocular-surface dye of 54 patients were selected during the study staining. period. Purposive sampling was carried out. The information collected was tabulated and The study protocol was approved by analysed using standard statistical software the Institutional Ethics Committee. (Microsoft Excel 2010 and SPSS Version Informed consent was collected from the 25). International Journal of Science and Healthcare Research (www.ijshr.com) 194 Vol.5; Issue: 2; April-June 2020 Vivek Kumar et.al. Study to find the burden of dry eye in diabetic patients in a tertiary care hospital Statistical Analysis: Logistic Regression 6.5 times more chance of having dry eye as was applied to find out the association and compared to participants in age group <40 their strength between the variables to years. Study participants having diabetic validate the findings of the study. retinopathy had a risk of developing dry eye 54 times as participants not having diabetic RESULT retinopathy. Study participants having In our study the prevalence of dry diabetes > 5 years had 5 times greater risk eye in the study subjects came out to be for dry eye as compared to newly diagnosed 57.4%. diabetics (<1 year). Table – 1 shows the socio- demographic and clinical profile of study Table 1: Profile of Study participants Variable Frequency Percentage subjects who participated in the study. The Age age distribution revealed that maximum < 40 9 16.7 41 – 60 28 51.9 subjects 28 (51.9%) were in the age group >60 17 31.5 of 41 - 60 years. Female cases contributed Gender 55.6% of the study population while 44.4% Female 30 55.6 Male 24 44.4 were males. Most of them (40.7%) had Occupation history of duration of diabetes of 1- 5 year. Housewife 19 35.2 Farmer 22 40.7 More than one third of the study population Office Worker 7 13.0 that is 38.9% were having hypertension. Field Worker 6 11.1 Hypertension Almost half (51.7%) of the study subjects Absent 33 61.1 had diabetic retinopathy. Present 21 38.9 Figure 1 represents the clinical Dry Eye Absent 23 42.6 features of the participants in the study. The Present 31 57.4 most common complaints were redness of DM duration < 1 year 16 29.6 eye, burning sensation, painful eye, blurring 1 – 5 year 22 40.7 of vision and problem in low humid areas. > 5 year 16 29.6 Diabetic Retinopathy By applying logistic regression, we Present 28 51.85 saw that in the age group > 60 years have Absent 26 48.15 Figure 1: Clinical features of the study participants International Journal of Science and Healthcare Research (www.ijshr.com) 195 Vol.5; Issue: 2; April-June 2020 Vivek Kumar et.al. Study to find the burden of dry eye in diabetic patients in a tertiary care hospital Table 2: Risk of dry eye in Diabetic patients by applying logistic regression Dry Eye Variables Present Absent Odds Ratio p-value Age < 40 3 6 - - 41 – 60 15 13 2.31 0.29 >60 13 4 6.5 0.03* Gender Female 11 19 - - Male 20 4 8.63 <0.001* Diabetic Retinopathy Present 26 2 54.6 <0.001* Absent 5 21 - - Duration of DM < 1 year 6 10 - - 1 – 5 year 13 9 2.4 0.19 > 5 year 12 4 5 0.03* ‘*’ – statistically significant DISCUSSION and functional abnormalities of the cornea The present study entitled “Study to and are at a high risk of developing corneal find the burden of dry eye in diabetic lesions, as reported in several experimental patients in a tertiary care hospital” was and clinical studies.
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