scholarly journals Diamond burr superficial keratectomy with mitomycin C for corneal scarring and high corneal astigmatism after pterygium excision

2013 ◽  
pp. 951 ◽  
Author(s):  
Engin Bilge Ozgurhan ◽  
Necip Kara ◽  
Aydin Yildirim ◽  
Ercüment Bozkurt ◽  
Demirok ◽  
...  
Keyword(s):  
Mitomycin C ◽  
Corneal Astigmatism ◽  
Corneal Scarring ◽  
Diamond Burr ◽  
Pterygium Excision

scholarly journals Astigmatic change after pterygium excision with autologous limbal conjunctival graft

2020 ◽  
Vol 9 (1) ◽  
pp. 25-30
Author(s):  
Dikchhya Sharma ◽  
Gunjan Prasai ◽  
Om Krishna Malla
Keyword(s):  
Age Groups ◽  
College Teaching ◽  
Corneal Astigmatism ◽  
P Value ◽  
Ocular Surgery ◽  
Medical College ◽  
Corneal Scarring ◽  
Significant Difference ◽  
History Of ◽  
Pterygium Excision

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.

Subconjunctival Mitomycin C Before Pterygium Excision

Cornea ◽  
2008 ◽  
Vol 27 (4) ◽  
pp. 471-475 ◽  
Author(s):  
Yi-Sheng Chang ◽  
Wen-Chung Chen ◽  
Sung-Huei Tseng ◽  
Chun-I Sze ◽  
Chao-Liang Wu
Keyword(s):  
Mitomycin C ◽  
Pterygium Excision

A PROSPECTIVE ANALYSIS OF VISUAL ACUITY AND ASTIGMATIC CHANGES AFTER PTERYGIUM EXCISION WITH LIMBAL STEM CELL GRAFTING

2021 ◽  
pp. 21-23
Author(s):  
Kumari Preeti ◽  
Nitu Kumari ◽  
[Prof.] Alka Jha ◽  
Debarshi Jana
Keyword(s):  
Visual Acuity ◽  
Stem Cell ◽  
Corneal Astigmatism ◽  
Surgical Removal ◽  
Prospective Analysis ◽  
Cell Grafting ◽  
Induced Astigmatism ◽  
Pterygium Excision ◽  
Limbal Stem Cell ◽  
Primary Pterygium

Objectives: The aim of this study was to assess if there is any signicant reduction in astigmatism and thus improvement in visual acuity after pterygium excision with limbal stem cell grafting. Methods: In this prospective study, patients with primary pterygium were included. Preoperative and postoperative corneal astigmatism, refractive astigmatism and visual acuity were analyzed. All patients underwent pterygium excision with limbal stem cell grafting. Results: Mean improvement in visual acuity of 0.09 log MAR units was observed (p <0.0001, statistically signicant).Mean corneal astigmatism for grade I, II and III was found to be 1.03 ± 0.68D, 1.69 ± 0.80D and 2.90 ± 1.06D respectively. Mean corneal astigmatism decreased by 1.29 D (p <0.0001, statistically signicant).A decrease of 0.77D in cylindrical power required was found after surgery (p <0.0001, statistically signicant). Conclusions: there is a signicant reduction in pterygium induced astigmatism and improvement in visual acuity on surgical removal of the pterygium.

Prospective Study on the Safety and Efficacy of Combined Conjunctival Rotational Autograft With Intraoperative 0.02% Mitomycin C in Primary Pterygium Excision

Cornea ◽  
2009 ◽  
Vol 28 (2) ◽  
pp. 166-169 ◽  
Author(s):  
Alvin L Young ◽  
Patrick M K Tam ◽  
Gloria Y S Leung ◽  
Lulu L Cheng ◽  
Philip T H Lam ◽  
...  
Keyword(s):  
Prospective Study ◽  
Mitomycin C ◽  
Safety And Efficacy ◽  
Pterygium Excision ◽  
Primary Pterygium

Assessment of Preoperative and Postoperative Changes in Corneal Astigmatism after Pterygium Excision by Different Techniques

2020 ◽  
Vol 9 (2) ◽  
pp. 1-4
Author(s):  
Madhavi Chevuturu
Keyword(s):  
Visual Acuity ◽  
Amniotic Membrane ◽  
Surgical Techniques ◽  
Corneal Astigmatism ◽  
Group Iii ◽  
Conjunctival Autograft ◽  
Postoperative Changes ◽  
Group I ◽  
Pterygium Excision ◽  
Group Ii

Background: Pterygium causes visual problems due to induced corneal astigmatism or direct encroachment onto the visual axis. The present study was conducted to compare preoperative and postoperative changes in corneal astigmatism after pterygium excision by different techniques. Subjects and Methods: The present study was conducted from May 2018 to August 20018 on 69 patients of age range 20-55 years of primary Pterygium. Patients were divided into three groups of 23 each. Group I was treated with bare sclera (BS) technique, Group II with conjunctival autograft (CAG) technique and Group III with amniotic membrane graft (AMG) technique. All the patients were preoperatively assessed for visual acuity, anterior and posterior segments, autorefraction, and autokeratometry. After surgery, the patients were recalled on day 5, 1 month, and 3 months for the analysis. Results: Uncorrected visual acuity (UCVA) preoperatively was 0.57, on the 5th day was 0.45 after 1 month was and after 3 months was 35. The mean preoperative astigmatism value in group I was 3.45, in group II was 3.52 and in group III was 3.49. Postoperative astigmatism value in group I was 1.60, in group II was 0.92 and in group III was 0.81. The difference was significant (P< 0.05). Conclusion: Authors found that amniotic membrane graft and a conjunctival autograft is better surgical techniques than bare sclera in reducing astigmatism.

Mitomycin C and pterygium excision

Ophthalmology ◽  
2003 ◽  
Vol 110 (11) ◽  
pp. 2257-2258 ◽  
Author(s):  
Halit Oguz
Keyword(s):  
Mitomycin C ◽  
Pterygium Excision

scholarly journals The Role of Using Motorized Diamond Burr Polisher Instrument in Minimizing the Recurrent Rate of Pterygium Excision

2020 ◽  
pp. 129-136
Author(s):  
Sakar Abdulkarim Nidhamalddin
Keyword(s):  
Diamond Polishing ◽  
Corneal Scar ◽  
Group A ◽  
Iop Measurement ◽  
The Mean ◽  
Diamond Burr ◽  
Pterygium Excision ◽  
The Difference ◽  
Group B ◽  
Primary Pterygium

To compare the effects of using motorized diamond burr polisher in pterygium excision versus manual polishing of the corneoscleral bed in reducing the recurrent rate. A prospective, comparative and interventional study of 90 consecutive patients with different grads of primary pterygium, who underwent pterygium excision at Shahid Aso teaching eye hospital in Sulaimani city, between August 2018 till September 2019, which was performed by single surgeon. In group A (45) eyes polishing of the corneoscleral bed done using motorized diamond polishing burr, and in group B (45) eyes using manual crescent blade for polishing. Recurrent rate was evaluated after about (8±2) months postoperatively. Ethical consideration of the risks and the benefits of the procedure was observed for each individual patient. A 90 patients with the mean age of group A (48.84±12.7) years and group B (49.67±12.3) years, complained of different grads of primary pterygium, group A had 31(68.9%) male and 14(31.1%) female, while group B had 22(48.9%) male and 23(51.1%) female. Each individual factors like age, gender, visual acuity, BCVA pre and postoperatively, IOP measurement, dryness of the eye and risk factors like smoking and UV exposure affecting the recurrence were assessed. In both groups the main indication for surgery was sign of irritation. The mean surgical time was calculated and the difference between two groups were significant. After follow-up of average six months the outcomes and recurrent rate were checked, recurrent rate was in group A 1(2.2%) while in group B was 6(13.3%) patients. it significantly decreased. Corneal scar happens in only 1(2.2%) case of group A while in 11(24.4%) cases in group B, Corneal scar was statistically significant. In both groups the change of BCVA was significant but the visual change was more significant in group A in compare to group B. Motorized diamond burr is a safe instrument for polishing the cornea during pterygium excision, it is easy to handle, low price, need lesser operative time, its effect on recurrence postoperatively is significant and beside it leaves lesser corneal scar and early visual recovery postoperatively.   

scholarly journals Comparing Adjuvant Beta Radiation, Mitomycin C, and Conjunctival Autograft in Primary Pterygium Treatment, a Three-year Follow-up Study

2021 ◽  
Vol 14 (1) ◽  
pp. 82-87
Author(s):  
Khalil M. Al-Salem ◽  
Ahmad T.S. Saif ◽  
Passant S. Saif
Keyword(s):  
Postoperative Complications ◽  
Mitomycin C ◽  
Recurrence Rate ◽  
University Hospital ◽  
Beta Radiation ◽  
Conjunctival Autograft ◽  
Group A ◽  
Pterygium Excision ◽  
Group B ◽  
Primary Pterygium

Purpose: To compare the recurrence rate of primary pterygium surgery after the adjuvant use of Beta radiation, Mitomycin C, and conjunctival autograft. Methods: 180 eyes of 180 patients were included in the study. All cases had primary pterygium excision following the use of adjuvant therapy of Beta radiation or Mitomycin C (0.02% for 5 minutes) or conjunctival autograft. The study was conducted at Fayoum University Hospital, Fayoum, Egypt, and Misr University Hospital. The patients were randomly divided into three groups, with each group comprising 60 patients. Group (A) included patients treated with Beta radiation following Pterygium excision, group (B) patients had primary pterygium excision with the application of 0.02% Mitomycin C for 5 minutes, and group (C) patients had conjunctival autograft to cover the bare area after pterygium excision. Patients were followed up for three years postoperatively. Results: group A had the highest recurrence rate (33.3%) followed by group B (13.3%), and finally group C presented a recurrence rate of 6.7%. Group B showed the highest rate of intra-ocular postoperative complications, while no intra-ocular complications were recorded in group C. Common complications in groups A and B were scleral melting, keratitis, and Dellen formation. Conclusion: Using conjunctival autograft after primary pterygium excision gives the best results regarding the rate of recurrence and postoperative complications. Meanwhile, B-radiation or Mitomycin C did not prove to be as good.

Sign in / Sign up

Export Citation Format

Share Document