Smriti Nagpal

Naso-cutaneous fistula following transcanalicular laser dacrocystorhinostomy.

We report a case of naso-cutaneous fistula due to thermal injury during transcanalicular laser dacryocystorhinostomy followed by superadded infection with coagulase negative staphylococcus in a diabetic patient. The case highlights the importance of meticulous wound care in the management and possibility of its occurrence even with minor thermal injury in immunocompromised patients.

Comparison of Polypropylene Sling with Combined Transconjunctival Retractor Plication and Lateral Tarsal Strip for Correction of Involutional Lower Eye Lid Ectropion

Purpose: The study aims to compare the effectiveness and complications of transconjunctival retractor plication (TRP) with lateral tarsal strip (LTS) and the polypropylene sling (PS) surgery for treatment of involutional lower lid ectropion. Method: A prospective randomised pilot study was conducted on 30 eyes of 30 patients suffering from epiphora having horizontal eyelid laxity >6mm and age >50 years at a tertiary care centre from December 2014 to March 2015. They were randomly divided into two equal groups for TRP with LTS (group A) and PS (group B). Success was defined as relief in epiphora and lid laxity ≤4mm at 12 months post operatively. Result: There were 19 male and 11 female patients with age ranging from 55-80 years. The mean grade of ectropion was 2.80±1.32 in group A and 2.87±1.60 in group B. The preoperative horizontal laxity increased with the grade of ectropion (p <0.001) while medial canthal laxity was variable. The average surgical time per procedure in group A was 66 minutes and in group B was 24 minutes. Group A had a success rate of 93.33%, while group B had a success rate of 87%. Post-operative complications occurred in 2 eyes in group B only. Conclusion: Both LTS with TRP and PS are effective in the management of involutional ectropion. LTS with TRP though more invasive has higher success rates and a lower incidence of complications as compared to PS. However, PS is an easy to perform out- patient procedure that is faster and better tolerated in old patients.

Transcanalicular Laser-Assisted Dacryocystorhinostomy With Endonasal Augmentation in Primary Nasolacrimal Duct Obstruction: Our Experience.

PURPOSE To evaluate and compare the success rate of transcanalicular laser-assisted dacryocystorhinostomy with endonasal augmentation, with and without intubation, in patients suffering from primary acquired nasolacrimal duct obstruction, at 1 year of follow up. METHODS A prospective, randomized interventional pilot study was conducted at a tertiary care center, in accordance with the guidelines of Declaration of Helsinki. Sixty eyes of 60 adult patients with primary acquired nasolacrimal duct obstruction were included. The participants were divided randomly into 2 equal groups (A and B-without and with bicanalicular intubation, respectively). An osteotomy was first created using 980 nm diode laser (set at 8W continuous mode) transcanalicularly and then enlarged intranasally using Blakesleys nasal forceps, followed by bicanalicular silicon intubation in group B patients. The tubes were removed at the end of 8 weeks. The ostium size was assessed endoscopically at 8 weeks and again at the end of follow up, at 1 year. A successful outcome was defined in terms of ostium patency at the end of 1 year. The results were analyzed at the end of a follow up of 1 year, using various statistical tests (p < 0.05). RESULTS The mean age of the patients was 35.3 ± 15.89 years, with 23 male and 37 female patients, the 2 groups having a similar male:female ratio. An overall success rate of 90% was achieved at the end of 1 year with no statistically significant difference between the groups. Postoperative complications like tube displacement and punctal, canalicular injury were more in the intubated group. The average osteotomy size was 8.06 ± 5.4 mm at the end of 1 year. CONCLUSIONS Transcanalicular laser-assisted dacryocysto rhinostomy, with endonasal augmentation, is a scarless, effective, daycare procedure, for treatment of primary acquired nasolacrimal duct obstruction with no additional advantage offered by silicone intubation.

Management of bilateral microspherophakia with secondary angle closure glaucoma

BACKGROUND Microspherophakia is characterized by lenticular myopia, late development of lens dislocation, shallow anterior chamber and angle-closure glaucoma. If it is associated with angle closure glaucoma, the management can be challenging. OBJECTIVE To report the management of a case of bilateral secondary angle closure glaucoma with isolated microspherophakia and right subluxated lens in a middle aged lady. CASE A 47-year-old female presented with bilateral secondary angle closure glaucoma with isolated microspherophakia, right subluxated lens and left operated trabeculectomy. The patient`s best corrected log mar visual acuity improved from 1.0 to 0.2 and intraocular pressure (IOP) decreased from 24.9mm of Hg to lower teens following lensectomy with scleral fixation of posterior chamber intraocular lens in the right eye. The left eye IOP remained in mid teens without medication in two year follow up. CONCLUSION This case demonstrates that microspherophakia should be ruled out even in middle aged patients presenting as angle closure glaucoma. The possibility of thickened cornea must be kept in mind requiring an IOP correction. Lensectomy with scleral fixation of posterior chamber IOL provides a satisfactory recovery of visual acuity and IOP control. Though in this patient, the lens was held in position by posterior synechiae in the left eye, future stability of zonules needs to be monitored.

Case report of sump syndrome after laser conjunctivodacryocystorhinostomy.

The sump syndrome was initially described in relation to patients who had undergone external dacryocystorhinostomy. Here we report a case of sump syndrome that developed following laser conjunctivodacryocystorhinostomy (CDCR) due to tube displacement after a bout of forceful sneezing. Unlike cases of external dacryocystorhinostomy where flaps are sutured, there is a potential space created by the sac remnants in laser CDCR. Hence, any displacement of the tube will lead to the improper drainage of secretions with superadded infections of the contents (as occurred in this case). Therefore, in laser CDCR, it is imperative to create an appropriately placed osteotomy with a correctly sized tube that is well secured to avoid displacement along with patient education regarding tube care.

The Relationship of Amount of Resection and Time for Recovery of Bell’s Phenomenon after Levator Resection in Congenital Ptosis

Background: Recovery of Bell`s phenomenon after levator resection is unpredicatable. Delayed recovery can result in vision threatening corneal complications. Aim: To study the variability of Bell’s phenomenon and time taken for its recovery following levator resection for blepharoptosis and to correlate it with the amount of resection. Methods: A prospective observational study was conducted on 32 eyes of 32 patients diagnosed as unilateral simple congenital blepharoptosis who underwent levator resection at a tertiary care center between July 2013 and May 2015. Patients were followed up for 5 months and correction of ptosis, type of Bell`s, duration of Bell`s recovery and complications were noted. Results: The study group ranged from 16-25 years with 15:17 male: female ratio. There were 9 mild, 16 moderate and 7 severe ptosis. Satisfactory correction was achieved in all cases. Good Bell`s recovery occurred in 13 eyes on first post-op day, in 2-14 days in 19 eyes and 28 days in 1 eye. Inverse Bell`s was noted along with lid oedema and ecchymosis in 2 patients. Large resections (23-26mm) were associated with poor Bell`s on the first postoperative day (p=0.027, Fisher`s exact test). However, the duration required for recovery of Bell`s phenomenon did not show any significant difference with the amount of resection. (p=0.248, Mann Whitney test). Larger resections resulted in greater lagophthalmos (correlation=0.830, p<0.0001). Patients with recovery of Bell`s delayed for more than 7 days were associated with greater number of complications (p=0.001 Fisher`s Exact Test). Conclusion: Close monitoring for Bell`s recovery is required following levator resection.

Study of microbial growth on silicone tubes after transcanalicular laser-assisted dacryocystorhinostomy and correlation with patency

INTRODUCTION Intubation in primary transcanalicular laser assisted dacryocystorhinostomy (TCLADCR) is performed to increase the success rates. However, the associated inflammation and infection can have adverse effects. OBJECTIVE To study the microbial infection and drug susceptibility of extubated silicone tubes and final anatomical patency in patients undergoing TCLADCR. MATERIALS AND METHODS A non-randomised prospective interventional study was conducted in a tertiary care eye centre. The study included twenty consecutive adult patients with primary nasolacrimal duct obstruction. They underwent TCLADCR with bicanalicular silicone intubation. The stents were removed at 2 months and subjected to culture sensitivity, followed by administration of appropriate antimicrobial agents. Main outcome measures studied were the microbial spectrum on the cultured tubes, their sensitivity profile and its correlation with final anatomical patency. RESULTS A positive culture was obtained in 100% cases, comprising of normal commensals and pathogenic organisms. Of the total 24 isolates, 16 (66.6%) Gram positive bacteria (75% Staphylococcus aureus) and 8 (33.3%) Gram negative bacteria (commonest E.coli) were found, with 4 tubes having more than one isolate. No fungal growth was seen. Ninety percent success rate was achieved at one year following appropriate antimicrobial therapy except in 2 patients with gram negative isolates who had failed to take the prescribed antibiotics following sensitivity reports. There was no correlation between multiple infections and success rate. However, by using the Fisher exact test, a positive correlation was obtained between appropriate antibiotic treatment and the final anatomical patency (p less than 0.05). CONCLUSION Silicone intubation predisposes to microbial growth, which if neglected, can lead to failure of TCLADCR.

Results of a new “mirror tuck technique” for fixation of lacrimal bypass tube in conjunctivodacryocystorhinostomy

Context: Conjunctivodacryocystorhinostomy (CDCR) is the procedure of choice for proximal canalicular blocks. However, the complications of tube migration and extrusion limit its widespread practice. Aim: The aim of this study is to evaluate the efficacy and complications of the new “mirror tuck technique” for fixation of lacrimal bypass glass tube without holes in proximal canalicular blocks in laser CDCR. Materials and Methods: A prospective interventional study was conducted in forty consecutive eyes of adult patients, undergoing 980 nm diode laser CDCR for proximal canalicular blocks. After creating the tract under endoscopic guidance, the collar of the glass tube was fixed to the conjunctiva with 6-0 prolene suture by “mirror tuck technique.” Success was defined as the absence of extrusion of tube with patent tract and relief in epiphora at 1 year of follow-up. Results: Both anatomical and functional success was achieved in 39 (97.5%) cases. Tube displacement occurred in one patient suffering from allergic conjunctivitis in which the tube had to be removed. A temporary heaviness was reported by 5 (12.5%) patients till about 2 weeks. Conjunctival overgrowth over the tube occurred in 1 (2.5%) eye at 5 months which was excised and treated with application of 0.02% mitomycin C with no subsequent recurrence. There were no cases of suture abscess or suture intolerance warranting tube removal. Conclusion: “Mirror tuck technique” is an effective method for tube fixation (for tube without holes) in CDCR. However, it is important to position the conjunctival opening so as to leave sufficient space for passage of sutures for anchorage medially.

Comparison of surgically induced astigmatism between horizontal and X-pattern sutures in the scleral tunnel incisions for manual small incision cataract surgery

Various ways of suturing the scleral tunnel incisions have been described in the literature.[2] The author chose to compare two such methods. However, if the study was aimed at finding the effect of suturing technique, in that case, the site of incision should not have been altered. This has created another variable in the study. There is no information regarding the magnitude of astigmatism for which the incision placement was changed. Temporal incisions are known to induce lesser astigmatism.[3]

Malik`s Technique of Single Loop Fixation of Posterior ChamberIntraocular Lens in Presence of Partial Capsular Support

Single loop fixation of posterior chamber intraocular lens in the presence of partial capsular support is usually performed by creation of additional scleral flap or tunnel. This extra port may expose the suture holding the intraocular lens or the tucked-in lens haptics to the outside environment thereby increasing the risk of endophthalmitis. We describe a technique of single loop fixation where the scleral tunnel is created adjacent to the site with the absent capsule, the leading haptic is placed on the capsular scaffold, the trailing haptic is tied to 9-0 polypropylene, and the suture is then secured to the inner edge of the scleral lip with enough tension to center the optics and the wound is then closed. The suture knot gets buried within the scleral tunnel with no external communication and does not require a separate port. It is an easy, safe, fast and reproducible technique with a lens tilt of less than 2°.