Comparison of Pre and Post Operative Corneal Astigmatism following Pterygium Excision and Conjunctival Autograft

Gahlot, Dr Abha; Maheshgauri, Dr Rupali D.; Kumari, Dr Priti; Datta, Dr Debapriya

doi:10.18535/jmscr/v3i9.17

Cited by 2 publications

(4 citation statements)

References 8 publications

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“…In our study, the maximum number of patients belonged to grade 2(90.32%). Similar to this, Gahlot A et al Maheshwari S et al and Shelke et al also found the maximum number of patients belonging to Grade II pterygium 25,26,10 . However, Bhargava P et al found only 23.07 % of patients had grade II pterygium in their study 27 .…”

Section: Figure 1: Change In Astigmatism Preoperatively and Postoperativelysupporting

confidence: 76%

Astigmatic change after pterygium excision with autologous limbal conjunctival graft

Sharma

Prasai

Malla

2020

J. Kathmandu Med. Coll.

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Background: Pterygium induces a significant amount of astigmatism. Pterygium excision with conjunctival limbal autograft results in significant reduction in astigmatism by inducing a reversal of pterygium induced corneal flattening thereby improving the vision. Objectives: The aim of this study was to investigate the amount of corneal astigmatism in patients with pterygium before and one month (4 weeks) after surgery. Methodology: The prospective observational study was conducted in 31 patients who underwent pterygium excision with limbal autograft in Kathmandu Medical College Teaching Hospital during the study period of 12 months duration. Patients with recurrent pterygium, pseudopterygium, history of ocular trauma, history of ocular surgery, corneal scarring were excluded from the study. After surgery, patients were followed for four weeks. Findings were recorded in the proforma and statistical analysis was done in SPSS version 19. Results: Pterygium was seen in all age groups with majority being in the active age range of 41-50 yrs. Females were most commonly affected. Significant difference in corneal astigmatism was noted postoperatively with a p value being 0.01. Conclusion: The technique of pterygium excision with limbal conjunctival autograft not only reduces the chances of recurrence but also helps in reducing the induced corneal astigmatism which is responsible for decreased vision in patients with pterygium.

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Section: Figure 1: Change In Astigmatism Preoperatively and Postoperativelysupporting

confidence: 76%

Astigmatic change after pterygium excision with autologous limbal conjunctival graft

Sharma

Prasai

Malla

2020

J. Kathmandu Med. Coll.

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“…These observations were similar to the studies performed by Yousuf, 2005;Saleem et al, 2011;Shelke et al, 2014;Garg et al, 2019. BCVA in all grades of pterygium significantly improved following surgical excision at four months which are in correlation with previous studies (Mohite et al, 2017;Shastry et al, 2019). However, some studies reported improvement in BCVA only in 50-60% cases (Bhargava et al, 2015;Gahlot et al, 2015) or no improvement (Malik et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…However, some studies proposed that keratometry is not a very useful tool to evaluate the corneal surface changes in pterygium because flattening of peripheral cornea is more than central cornea; hence the keratometry which measures only the central cornea can give rise to imprecise results. (Maheshwari, 2007;Radadia, 2014;Parajuli & Bajracharya, 2019) Excision of pterygium with autologous conjunctival graft is considered the gold standard and most preferable choice of treatment for the management of pterygium (Gahlot et al, 2015;Parajuli & Bajracharya 2019). Results of these studies indicate that surgical excision of pterygium with conventional conjunctival autograft technique is associated with significant decrease in corneal astigmatism postoperatively; however, a study done by Cano-Parra et al, 2002 reported that after excision of pterygium no significant difference was found between pre and post-operative astigmatism values.…”

Section: Introductionmentioning

confidence: 99%

“…Jain A K and Pandey D J Keratometric astigmatism changes after pterygium excision Nepal J Ophthalmol 2020;Vol 12 (24): 191-200 Most of the previous studies have reported that corneal astigmatism after pterygium excision reduced significantly all grades of pterygium (Chourasia et al, 2014;Deepankar & Jain, 2015;Garg et al, 2019). However, in terms of visual acuity previous studies show contradictory results in different grades of pterygium following surgical excision (Malik et al, 2012;Bhargava et al, 2015;Gahlot et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of change in pterygium induced keratometric astigmatism in patients following pterygium excision with autologous graft surgery

Jain¹,

Pandey

2020

Nep J Oph

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Introduction: Pterygium is a common surface disorder of the eye that may cause change in visual acuity of patients by inducing astigmatic refractive error. Surgical excision with grafting is considered the most effective recommended treatment for pterygium. The objective of this study was to evaluate the outcomes of pterygium excision with autologous graft surgery on keratometric astigmatism and visual acuity. Materials and methods: In this study total 64 eyes of 64 patients were enrolled having the diagnosis of pterygium. Prior to the pterygium excision surgery all the enrolled patients were studied for grading of pterygium, clinical symptoms, keratometric values and best corrected visual acuity (BCVA). Postoperatively, BCVA and keratometric readings were recorded at one week, one month, two months and four months intervals. Results: Mean age of study participants was 34.16 ± 8.24 years in the age group of 18-60 years. 42 (65.62%) eyes had grade II pterygium, while 16 (25.0 %) and 6 (9.38%) eyes were having grade III and grade IV pterygium, respectively. Preoperative median and quartiles (25% -75%) horizontal and vertical keratometric values were 43.00 (42.50-44.00) D and 44.25 (43.75-44.50) D, respectively and both reduced significantly to 42.50 (42.50-42.94) D and 42.50 (42.50- 43.00) D, respectively after four months postoperatively. Median keratometric astigmatism before surgery was 1.37 (1.25-1.93) D which reduced significantly to 0.50 (0.32-0.75) D after four months of pterygium excision. Similarly, BCVA improved significantly [0.20(0.16-0.25) vs 0.53 (0.50-0.80)] when assessed postoperatively after four months. Conclusion: Excision of pterygium with autologous graft reduced pterygium-induced keratometric astigmatism and improved BCVA significantly.

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Comparison of Pre and Post Operative Corneal Astigmatism following Pterygium Excision and Conjunctival Autograft

Abstract: ABSTRACT

Cited by 2 publications

References 8 publications

Astigmatic change after pterygium excision with autologous limbal conjunctival graft

Astigmatic change after pterygium excision with autologous limbal conjunctival graft

Evaluation of change in pterygium induced keratometric astigmatism in patients following pterygium excision with autologous graft surgery

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