Effect of Pterygium Surgery on Tear Osmolarity

Abstract

Purpose. To investigate changes of dry eye test results in patients who underwent pterygium surgery. Methods. Seventy-four patients who underwent primary pterygium surgery were enrolled in this study. At the baseline, 3-, 12-, and 18-month visits, measurements of tear osmolarity, BUT, and Schirmer test were performed. The patients were divided into 2 groups: Group 1, which consisted of patients in whom pterygium did not recur, and Group 2, which consisted of patients in whom pterygium recurred after surgery. Results. The patients in Group 1 had lower tear osmolarity levels after surgery than those at baseline (all P < 0.001). In Group 2 the tear osmolarity levels did not differ from baseline after 18 months (P = 0.057). The prevalence rates of dry eye syndrome (DES) were lower than that at baseline and 18 months after surgery in Group 1 (P = 0.002). In Group 2, the incidence of DES was lower after 3 months than at baseline (P = 0.03) but was similar to the baseline rate after 12 and 18 months (both P > 0.05). Conclusions. Anormal tear film function associated with pterygium. Pterygium excision improved tear osmolarity and tear film function. However, tear osmolarity deteriorated again with the recurrence of pterygium.

Sociodemographic profile of pterygium patients attending Government Medical College, Jammu, Jammu and Kashmir- a study from North India

“…It can cause chronic ocular irritation, induced astigmatism, tear film disturbances, and decreased vision secondary to growth over the visual axis. 8 It is an ocular degenerative condition that has been attributed to environmental factors. 9 Although the exact etiology of pterygium is unknown, exposure to ultraviolet (UV) radiation is thought to be the major environmental risk factor as it is found in areas of bright sunlight.…”

“…9 Although the exact etiology of pterygium is unknown, exposure to ultraviolet (UV) radiation is thought to be the major environmental risk factor as it is found in areas of bright sunlight. 8,9 Age, hereditary factors, sunlight, chronic inflammation, microtrauma, and dry eye are other possible contributing factors. 8 In the present study maximum number of patients i.e.…”

“…8,9 Age, hereditary factors, sunlight, chronic inflammation, microtrauma, and dry eye are other possible contributing factors. 8 In the present study maximum number of patients i.e. 40% was noticed in age group 31-40 years followed by 24.44% in age group 41-50 years.…”

Dry-Eye Disease in Recurrent Pterygium

“…Few risk factors for recurrence have been established, including surgical technique [2], younger age [2], and worse morphologic grade (fleshiness) [3]. While numerous studies have investigated tear function abnormalities in primary pterygia [4][5][6][7][8][9][10][11][12][13][14][15][16], little is known about dry-eye disease (DED) as a risk factor for recurrent pterygium; we are aware of only 1 other study that compared DED in nonrecurrent versus recurrent cases of pterygium [17].…”

Incidence of dry eye, refractive error changes and recurrence rate in the management of pterygium by conjunctival auto grafting with or without mitomycin – C in a tertiary eye care center

“…They concluded that intraoperative use of mitomycin-C during PRK did not induce tear deficiency. Kemal Turkyilmaz et al (2013) (5) suggested that tear hyperosmolarity and abnormal tear film function are associated with pterygium. Pterygium excision improved tear osmolarity and tear film function.…”