scholarly journals Delayed Onset Scleromalacia and Conjunctival Bleb Formation Following Intraoperative Mitomycin C Application during Conjunctival Melanoma Excision

Vision ◽  
2020 ◽  
Vol 4 (2) ◽  
pp. 24
Author(s):  
Syed Naqib Ahmed ◽  
Syed Mohammed Shahid ◽  
Mayank A. Nanavaty
Keyword(s):  
Mitomycin C ◽  
Eye Drops ◽  
Conjunctival Melanoma ◽  
Freeze Thaw ◽  
Delayed Onset ◽  
Oral Steroids ◽  
Bleb Formation ◽  
Eye Examination ◽  
One Year ◽  
Conjunctival Bleb

Purpose: To present a case of delayed onset scleromalacia and conjunctival bleb formation one year after conjunctival melanoma excision with intraoperative use of mitomycin-C (MMC) and double-freeze-thaw technique. Methods: Case report. Results: A 69-year-old woman had a conjunctival melanoma excised by the ‘no touch technique’ with intraoperative application of 0.02% MMC for 3 min on bare sclera, freeze-thaw cryotherapy and amniotic membrane transplant performed elsewhere. Three months later, she presented to us with a red, sore and painful right eye. Examination revealed severe scleritis. She was treated with lubricants and oral steroids for 6 weeks. She settled well with no recurrence of melanoma. At one year, she developed scleromalacia and conjunctival blebs in the inferonasal quadrant of right eye. She remains under closer observation as she is at high risk of perforation. Conclusion: Caution should be exercised with intraoperative use of MMC on bare sclera during excision and cryotherapy of conjunctival melanoma. As published in the literature, when using MMC, it is recommended to use the lowest dose topically in the form of eye drops in the postoperative period for the shortest time to avoid any sight-threatening complications.

scholarly journals Effects of Regorafenib, a Multi-Kinase Inhibitor, on Conjunctival Scarring in a Canine Filtration Surgery Model in Comparison with Mitomycin-C

2019 ◽  
Vol 21 (1) ◽  
pp. 63
Author(s):  
Emika Nemoto ◽  
Shota Kojima ◽  
Tetsuya Sugiyama ◽  
Denan Jin ◽  
Shinji Takai ◽  
...  
Keyword(s):  
Mitomycin C ◽  
Kinase Inhibitor ◽  
Age Related Macular Degeneration ◽  
Control Group ◽  
Eye Drops ◽  
Filtration Surgery ◽  
Glaucoma Filtration Surgery ◽  
Significant Difference ◽  
Bleb Formation ◽  
Collagen Density

Regorafenib eye drops were developed for treating age-related macular degeneration. This study aimed to investigate the effects of this multi-kinase inhibitor on intraocular pressure (IOP), bleb formation, and conjunctival changes in a canine filtration surgery model. Glaucoma filtration surgery models were created in 24 eyes of 24 beagles. In experiment 1 (Ex 1), regorafenib eye drops (regorafenib group: n = 6) or a vehicle (control group, n = 6) were instilled twice daily for 4 weeks postoperatively. In experiment 2 (Ex 2), regorafenib eye drops were instilled as in Ex 1 (regorafenib group: n = 6) for 12 weeks while conventional intraoperative mitomycin-C (MMC) was utilized (MMC group: n = 6), In Ex 1, only the regorafenib group showed significant IOP reduction with a significantly higher bleb score. Subconjunctival area, collagen density, vessels, and cells showing proliferation and differentiation were lower in subconjunctival tissue in the regorafenib group. In Ex 2, no significant difference was found in IOP reduction and bleb formation between the regorafenib and MMC groups; bleb walls were significantly thicker and collagen density and vessels were higher in the regorafenib group; and no differences were observed in the above-mentioned cells. Thus, regorafenib might be a better alternative to MMC for creating thicker and less ischemic blebs in glaucoma filtration surgery.

scholarly journals Complications and Recurrence after Pterygium Excision using Mitomycin C Eye Drops versus Sutureless and Glue Free Conjunctival Autograft: A Prospective Study

2020 ◽  
Author(s):  
Prachi Shukla ◽  
Suman Bhartiya
Keyword(s):  
Mitomycin C ◽  
Recurrence Rate ◽  
Eye Drops ◽  
Conjunctival Autograft ◽  
Group A ◽  
Pterygium Excision ◽  
The Difference ◽  
One Year ◽  
Group B

Introduction: Recurrence is the most common problem with pterygium excision. Various adjunctive methods have been described to decrease the recurrence rate of pterygium. Mitomycin C (MMC) and limbal Conjunctival Autograft (CAG) are most commonly used methods to reduce its recurrence. Aim: To compare the recurrence rate of pterygium and the complications with MMC eyedrops after bare sclera pterygium excision versus sutureless and glue free CAG. Materials and Methods: Total 104 eyes were divided into two groups (A and B) of 52 eyes each. Group A patients underwent bare sclera excision of pterygium followed by 0.01% MMC eye drops BD (twice a day) for five days and Group B patients had sutureless and glue free CAG using oozing blood as tissue adhesive after pterygium excision. The patients were followed-up postoperatively on day 1, day 3, day 7, one month, three months, six months and one year. All the patients were examined for recurrence and complications. Statistical analysis was done by using Statistical Package for the Social Sciences (SPSS) version 16 and student’s t-test was applied for comparison. Results: A total of 104 eyes of 92 patients were divided into two groups (A and B) of 52 each. The mean age of Group A was around 45 year and group B was around 43 years and the difference was statistically insignificant (p>0.05). Total three patients had recurrence in one year of follow-up in group A, out of which first case appeared before the end of 1st month, second before the completion of 3rd month and the third case at the last follow-up. In group B only one case presented with recurrence at 6th month follow-up. The difference between the recurrences in both the groups was statistically insignificant (p>0.05). Short term complications were observed in five patients in group A. One patient had corneal thinning; one had scleral thinning, two patients presented with avascular sclera and one patient with granuloma. In group B, 18 patients with graft retraction, eight with graft oedema, five with sub-conjunctival graft haemorrhage and one with granuloma were observed. All these complications resolved by the time. Long term complications were not observed in any patient of both the groups. Conclusion: This study concluded that the use of MMC eye drops (0.01%) BD or glue free and sutureless CAG after pterygium excision is safe and effective treatment modalities for pterygium.

scholarly journals Role of Paediatricians in Paediatric Ophthalmology

2013 ◽  
Vol 33 (1) ◽  
pp. 80-82
Author(s):  
Ujjowala Devi Shrestha
Keyword(s):  
Vitamin A Deficiency ◽  
Early Screening ◽  
Early Referral ◽  
Eye Health ◽  
Total Lack ◽  
Eye Examination ◽  
The Common ◽  
One Year ◽  
Paediatric Ophthalmology

Children are primarily examined by paediatricians. In Nepal, child health is in low priority due to illiteracy, there is total lack of awareness about children’s eye health. The common avoidable causes of childhood blindness are refractive errors, amblyopia, retinopathy of prematurity (ROP), vitamin A deficiency (VAD), xerophthalmia, ophthalmia neonatorum (ON), congenital cataract, and retinoblastoma. Paediatricians could be the key persons for early referral of these children to a paediatric ophthalmologist. Paediatricians can send the patients for eye examination after birth within 6 weeks, at 6 months, at one year and before going to school. In conclusion, early screening and referral by the paediatricians to the paediatric ophthalmologist prevents children from being sightless. DOI: http://dx.doi.org/10.3126/jnps.v33i1.7605 J Nepal Paediatr Soc. 2013;33(1):80-82

Influence of Carteolol and Timolol on IOP and Visual Fields in Glaucoma: A Multi-Center, Double-Masked, Prospective Study

1992 ◽  
Vol 2 (4) ◽  
pp. 169-174 ◽  
Author(s):  
J. Flammer ◽  
Y. Kitazawa ◽  
L. Bonomi ◽  
B. Mills ◽  
M. Fsadni ◽  
...  
Keyword(s):  
Visual Field ◽  
Prospective Study ◽  
Beta Blockers ◽  
Visual Fields ◽  
Visual Field Defects ◽  
Eye Drops ◽  
Treatment Groups ◽  
Visual Field Damage ◽  
One Year ◽  
Field Defects

The influences of Carteolol and Timolol eye drops on intraocular pressure (IOP) and visual fields were compared in a multi-center, double-masked, prospective study. Two-hundred and forty eyes of 120 patients were initially included in the study, and 142 eyes of 72 patients fulfilled all the criteria for final statistical analysis. Both drugs significantly reduced IOP. The visual fields in both treatment groups did not change during one year of treatment. In both groups some patients improved slightly, and others deteriorated slightly. This indicates that locally applied beta-blockers may efficiently stop further progression of visual field defects in cases with increased IOP and early visual field damage. There was no difference between Carteolol and Timolol in this regard. The side effects were minimal, and there were no differences in their frequency or intensity in the two treatment groups.

scholarly journals Avoiding BAK in postoperative eye drops reduces the need for subconjunctival 5-FU injections post-trabeculectomy

2020 ◽  
Vol 17 (1) ◽  
pp. 128-131
Author(s):  
Keith Ong ◽  
Leonard Ong
Keyword(s):  
Intraocular Pressure ◽  
Mitomycin C ◽  
T Test ◽  
Topical Steroids ◽  
Eye Drops ◽  
Filtration Surgery ◽  
Glaucoma Filtration Surgery ◽  
Group A ◽  
Group B ◽  
Causes Of Failure

Purpose: Subconjunctival fibrosis is one of the main causes of failure of glaucoma filtration surgery. It can result in absence of a filtration bleb, a small scarred bleb, or a cystic bleb. 5-Fluorouracil (5-FU), mitomycin C (MMC), and topical steroids have been used to suppress subconjunctival fibrosis. Method: A study was done analyzing the number of postoperative subconjunctival 5-FU injections for trabeculectomy on pseudophakic eyes prior to and following the change to a BAK-free regimen. The cohort consisted of 16 consecutive cases undergoing primary trabeculectomy without intraoperative MMC or 5-FU. The trabeculectomy surgery included a groove sclerectomy procedure. Group A were 8 eyes of patients who had the author’s standard Chlorsig, Maxidex, and Prednefrin Forte eye drops tds. Group B were 8 eyes who had Chlorsig-dexamethasone and Optive-dexamethasone tds eye drops postoperatively. Results: Group B (BAK-free) patients required fewer postoperative 5-FU subconjunctival injections (average: 2.9, range: 1-5 injections) compared to Group A (BAK) patients (average: 7.3, range: 4-18 injections). This difference was statistically significant (P = 0.02, unpaired t-test). All patients had functioning blebs and did not require glaucoma medications to maintain target intraocular pressure. The Group B (BAK-free) patients had more diffuse blebs than the Group A (BAK) patients. Conclusion: The results demonstrated that when BAK was eliminated from postoperative eye drops in trabeculectomy, the number of postoperative 5-FU injections was reduced.

Resolution of conjunctival melanoma with topical interferon alpha 2b in a patient with mitomycin C intolerance

2018 ◽  
Vol 93 (11) ◽  
pp. 558-561
Author(s):  
T.A. Chaparro Tapias ◽  
A.L. Díaz Díaz ◽  
R. Secondi ◽  
H. Coy Villamil ◽  
J.C. Sánchez España
Keyword(s):  
Mitomycin C ◽  
Interferon Alpha ◽  
Conjunctival Melanoma ◽  
Interferon Alpha 2B
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