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   Table of Contents - Current issue
Coverpage
Dec 2016
Volume 64 | Issue 12
Page Nos. 869-950

Online since Monday, January 23, 2017

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EDITORIAL  

Salami publishing: Walking on thin (sl)ice Highly accessed article p. 869
Sundaram Natarajan
DOI:10.4103/0301-4738.198848  PMID:28112123
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GUEST EDITORIAL Top

The 21st century doctor: A clinician–scientist? p. 871
Rupesh Agrawal
DOI:10.4103/0301-4738.198861  PMID:28112124
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ORIGINAL ARTICLES Top

Systemic administration of an anti-tumor necrosis factor-alpha monoclonal antibody protects against endotoxin-induced uveitis in rats p. 873
Qingman Ge, Shaocheng Wang, Yuezhong Zheng
DOI:10.4103/0301-4738.198864  PMID:28112125
Objective: This study was to evaluate the effect of systemic injection of an anti-tumor necrosis factor alpha (TNF-α) monoclonal antibody (mAb) on endotoxin-induced uveitis (EIU). Materials and Methods: Fifty-six male Wistar rats (6–8 weeks old) were randomly divided into three groups: EIU, anti-TNF-α mAb + EIU, and control. EIU was induced by injecting Escherichia coli O55:B5 lipopolysaccharide (LPS) into the hind footpad of the rats (150 μg/rat). The anti-TNF-α mAb (1 μg/kg) was administrated 30 min before LPS injection through one-time intravenous injection. The onset time and peak time of EIU were recorded. The serum and aqueous humor (AH) TNF-α, interleukin (IL)-6, and IL-10 levels were measured by ELISA at 4, 24, and 72 h post-LPS injection. Clinical manifestations of EIU and eye histopathology were scored. Results: Compared with the EIU rats, anti-TNF-α mAb + EIU rats showed significantly delayed onset of uveitis (t = 7.41, P< 0.001), lower clinical scores and histopathological grades (t = 3.18/2.22, P< 0.001), reduced levels of TNF-α (F = 15.06/59.43, P< 0.001) and IL-6 (F = 99.63/14.92, P< 0.001), and increased levels of IL-10 (F = 24.94/8.99, P< 0.001) in the serum and AH. AH TNF-α, serum IL-6, and AH IL-6 levels are positively correlated, whereas serum IL-10 levels were negatively correlated with EIU activity. Conclusion: Antagonizing TNF-α by system injection of the anti-TNF-α mAb protects against EIU in rats. Blocking TNF-α signaling could be a useful strategy for managing uveitis.
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The posterior iris-claw lens outcome study: 6-month follow-up Highly accessed article p. 878
Nana Madhukar Jare, Ashwini Ganesh Kesari, Salil S Gadkari, Madan D Deshpande
DOI:10.4103/0301-4738.198843  PMID:28112126
Purpose: The purpose of this study was to evaluate functional and anatomical outcomes of posterior iris-claw intraocular lens (IOL) implant for correction of aphakia in eyes with inadequate capsular support. Materials and Methods: Prospective case series of 108 aphakic eyes with inadequate capsular support which underwent posterior iris-claw IOL with a 6-month follow-up period was conducted. The cases belonged to two clinical settings: elective secondary implantation and those with intraoperative posterior dislocation of cataractous lens or IOL. Main outcome measures were visual acuity, anterior chamber reaction, stability of IOL, endothelial cell count, intraocular pressure (IOP), and cystoid macular edema (CME). Results: The mean best-corrected visual acuity was LogMAR 0.25. None had chronic anterior chamber inflammation. The mean difference in central endothelial counts before surgery and 1 month after surgery was 104.21 cell/mm2 (4.92%). There was no statistically significant difference in central endothelial cell count at 1 and 6 months (P = 0.91) and also in the central macular thickness at preoperative and after 6 months suggestive of CME (P = 0.078). Three eyes had raised IOP which were managed with neodymium-doped yttrium aluminum garnet laser peripheral iridotomy. There were no IOL dislocations or other adverse events in our series. Conclusion: Posterior chamber iris-claw lenses are a good option in eyes with inadequate posterior capsular support. Chronic inflammation, poor lens stability, or significant central endothelial cell loss was not observed during the 6-month follow-up period.
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Retropupillary iris-claw intraocular lens for the surgical correction of aphakia in cases with microspherophakia p. 884
Sameh Mosaad Fouda, Mahmoud A Al Aswad, Basem M Ibrahim, Ashraf Bori, Hala K Mattout
DOI:10.4103/0301-4738.198844  PMID:28112127
Purpose: This study aimed to evaluate the safety and efficacy of retropupillary fixation of an iris-claw intraocular lens (IOL; Verisyse polymethyl methacrylate IOL, Abbott Medical Optics [AMO], Netherlands) for the surgical correction of aphakia in microspherophakic eyes without sufficient capsular support. Design: This was a prospective, interventional, noncomparative case series. Methods: This interventional case series comprised 17 eyes of 9 microspherophakic patients. Retropupillary fixation of the Verisyse iris-claw IOL (AMO) was performed in all cases. The surgical time was measured. Corrected distance visual acuity, astigmatism, intraocular pressure (IOP), tissue reaction, pigment dispersion, and stability of the IOL were studied 1 day, 3 days, 1 week, 2 weeks, 1 month, and 6 months postoperatively. Results: Eight patients had familial microspherophakia and one patient had Marfan's syndrome. Eighty-two percent of the cases achieved a visual acuity of 0.3 or better. There was no significant postoperative inflammatory reaction. Transient elevation of IOP was recorded in two cases in the 1st week only. One IOL developed disengagement of one of the haptics from the iris and was successfully re-engaged. All the other IOLs were well centered and stable. The mean surgical time was 18.0 ± 4.5 min. Conclusions: Retropupillary fixation of an iris-claw IOL is a safe and effective procedure that provides early visual recovery. It is also a time-saving method for correcting aphakia in microspherophakic eyes without sufficient capsular support.
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Visual function of children with visual and other disabilities in Oman: A case series p. 888
Urmi Gogri, Rajiv Khandekar, Salah Al Harby
DOI:10.4103/0301-4738.198845  PMID:28112128
Background: We assessed the visual functioning of the children with special needs in Oman between 2009 and 2012. We present the methods of assessing different visual functions, outcomes, and interventions carried out to improve their functioning. Methods: Optometrists assessed visual functions of children of “Day care centres” in Oman. Experts further assessed them and provided low vision care. Ocular movements, refractive corrections, near, distance, contrast color, motion, field of vision, and cognitive visual function test results were noted. Feedback to caregivers was given to improve visual functioning of these children. Results: We grouped 321 participants, (196 [61.1%] boys, age range of 3–18 years) into 61; Down syndrome (DS), 72 with intellectual disabilities (IDs), 67; hearing impaired and 121 with other conditions. Refractive error and lag of accommodation were 26 (42.6%) and 14 (22.6%) among children with DS. Contrast sensitivity was impaired in 8 (12.7%) among hearing impaired children. Defective distant and near vision was in 162 (70%) and 104 (42%) of our cohort. Children with ID were most difficult to assess. Children in a group of other disabilities had a higher proportion of impaired visual functioning. They were given low vision aids (telescopes [22], filters [7], and magnifiers [3]) in large numbers compared to those in other groups. Conclusions: Visual functioning of children with other disabilities show great variation and difficult to group. The care, therefore, should be at individual level. All visual functions cannot be assessed at one time.
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Transconjunctival dacryocystorhinostomy: An aesthetic approach p. 893
Anasua Ganguly, Kesarpu Ramarao, Samir Mohapatra, Suryasnata Rath
DOI:10.4103/0301-4738.198855  PMID:28112129
Purpose: To report the anatomical and cosmetic outcome of transconjunctival dacryocystorhinostomy (TDCR) in an Asian Indian population. Methods: TDCR was initially performed in cadaver eyes followed by patients with primary acquired nasolacrimal duct obstruction (NLDO). This was a prospective noncomparative case series of all consecutive TDCRs performed between April 2013 and June 2015. Outcome measures were anatomical patency, epiphora, presence of diplopia, aesthetic outcome, and health status. Results: A total of 17 (18 eyes) patients with a mean age 43.9 ± 11.8 years (range, 32–75) were included in the study. Eight were males, and one patient underwent TDCR in both eyes. TDCR was successfully performed in 15/18 (82%) eyes under local anesthesia. Procedure converted to transcutaneous external DCR in two and dacryocystectomy in one patient each. Mean duration of surgery was 52.6 (range, 29–110) min. Anatomical patency and relief from epiphora was achieved in all (15/15) eyes after TDCR at a median follow-up of 15.5 months. At final follow-up, objective assessment of the cosmetic outcome graded the surgical scar at the lateral canthus as invisible in all except one and conjunctival fornix as visible only after eyelid eversion in all patients. Disturbance of the medial fat pad was not seen in any patient. A questionnaire-based health status evaluation showed marked improvement in anxiety/depression before and after TDCR with an overall well-being score of 88 on a scale of 0–100 (worst–best) after TDCR. Conclusions: TDCR offers a promising aesthetic approach in patients with primary acquired NLDO and gives excellent functional and cosmetic outcome.
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Impact of correcting visual impairment and low vision in deaf-mute students in Pune, India p. 898
Parikshit Gogate, Shashi Bhusan, Shantanu Ray, Amit Shinde
DOI:10.4103/0301-4738.198847  PMID:28112130
Aim: The aim of this study was to evaluate visual acuity and vision function before and after providing spectacles and low vision devices (LVDs) in deaf-mute students. Settings: Schools for deaf-mute in West Maharashtra. Methods: Hearing-impaired children in all special schools in Pune district underwent detailed visual acuity testing (with teachers' help), refraction, external ocular examination, and fundoscopy. Students with refractive errors and low vision were provided with spectacles and LVD. The LV Prasad-Functional Vision Questionnaire consisting of twenty items was administered to each subject before and after providing spectacles, LVDs. Statistical Analysis: Wilcoxon matched-pairs signed-ranks test. Results: 252/929 (27.1%) students had a refractive error. 794 (85.5%) were profound deaf. Two-hundred and fifty students were dispensed spectacles and LVDs. Mean LogMAR visual acuity before introduction of spectacles and LVDs were 0.33 ± 0.36 which improved to 0.058 (P < 0.0001) after intervention. It was found that difference in functional vision pre- and post-intervention was statistically significant (P < 0.0001) for questions 1–19. The most commonly reported difficulties were for performing distance task like reading the bus destination (58.7%), making out the bus number (51.1%), copying from blackboard (47.7%), and seeing whether somebody is waving hand from across the road (45.5%). In response to question number 20, 57.4% of students felt that their vision was much worse than their friend's vision, which was reduced to 17.6% after dispensing spectacles and LVDs. Conclusion: Spectacle and LVD reduced visual impairment and improved vision function in deaf-mute students, augmenting their ability to negotiate in and out of school.
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Polymerase chain reaction for Mycobacterium tuberculosis DNA detection from ocular fluids in patients with various types of choroiditis in a referral eye center in India p. 904
Jyotirmay Biswas, Mohmmad Salman Kazi, Vishvesh Ashokkumar Agarwal, Md. Shahid Alam, K Lily Therese
DOI:10.4103/0301-4738.198857  PMID:28112131
Aims: The aim of this study was to detect Mycobacterium tuberculosis (MTB) DNA with polymerase chain reaction (PCR) in aqueous or vitreous samples of patients suffering from choroiditis presumed to be infectious origin. Settings and Design: Hospital-based, retrospective case–control study. Subjects and Methods: In all, forty eyes of forty patients with choroiditis divided into two groups – Group A (serpiginous-like choroiditis, ampiginous choroiditis, multifocal choroiditis) and Group B (choroidal abscess, miliary tuberculosis (TB), choroidal tubercle) were analyzed retrospectively. In 27 controls (patients without uveitis undergoing phacoemulsification), anterior chamber aspirate was done and sample subjected to real-time PCR. Patients underwent nested PCR for MTB using IS6110 and MPB64 primers from aqueous (n = 39) or vitreous (n = 1). All patients underwent detailed ophthalmological examination by slit-lamp biomicroscopy, fundus examination by indirect ophthalmoscopy, and fundus photograph and fundus fluorescein angiography if required. Statistical Analysis: Positive results of PCR for MTB within the group and between two groups were statistically analyzed using Chi-square test. Results: There were 25 males and 15 females. Mean age at presentation was 34.66 years (range, 14–62). PCR positivity rates were 41.3% (n = 12/29) and 81.82% (n = 9/11) in Groups A and B, respectively. No controls had PCR-positive result. Comparison of PCR positivity rates showed statistically significant difference between Groups A and B (P = 0.028). Systemic TB was detected in 57.14% (n = 12/21) of all PCR-positive cases (Group A - 33.3%, n = 4/12; Group B - 88.9%, n = 8/9). Systemic antitubercular treatment (ATT) for 9 months and oral steroids were successful in resolution of choroiditis in all PCR-positive patients (n = 21) without disease recurrence. Conclusions: Eyes with choroiditis of suspected/presumed tubercular origin should be subjected to PCR for diagnosis of TB and subjected to ATT for prevention of recurrences.
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Reduced-fluence photodynamic therapy and anti-vascular endothelial growth factor for polypoidal choroidal vasculopathy in an Indian population p. 908
Parveen Sen, Muna Bhende, Ramya Sachidanandam, Nishat Bansal, Tarun Sharma
DOI:10.4103/0301-4738.198856  PMID:28112132
Aims: The aim was to study the efficacy of combined therapy with reduced-fluence photodynamic therapy (RFPDT) and intravitreal bevacizumab/ranibizumab from the Indian subcontinent. Settings and Design: This was a single-center, retrospective interventional study. Methods: Thirty-five eyes of 34 patients diagnosed with polypoidal choroidal vasculopathy were included. All the patients underwent RFPDT, followed by intravitreal bevacizumab/ranibizumab. Statistical Analysis Used: SPSS software, version 17.0 (SPSS Inc., Chicago, IL, USA) was used to compare the logarithm of the minimal angle of resolution visual acuity at presentation and final follow-up. P< 0.05 was considered statistically significant. Results: Regression of polyps after a single session of RFPDT was seen in five eyes; multiple sessions of treatment were required in thirty eyes. An average number of intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections given were 4 ± 1.9 and average number of PDT sessions were 1.2 ± 0.5. Visual acuity improvement was seen in 21 (60%) eyes (P < 0.001), decrease in visual acuity was seen in 7 (20%) eyes (P = 0.016), and in 7 eyes (20%), vision remained stable. Regression of polypoidal lesions was seen in 80% of cases. No complications of massive subretinal hemorrhage or breakthrough vitreous hemorrhage were noted in our patients. The mean follow-up period was 18 months (range, 12–24 months). Conclusions: RFPDT with anti-VEGF is safe and effective treatment with polyp regression and vision improvement in 80% of cases, without any complication of subretinal hemorrhage/vitreous hemorrhage.
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Comparison of deep sclerokeratodissection, a new variant of nonpenetrating glaucoma surgery, with deep sclerectomy p. 914
Anna Sophie Mursch-Edlmayr, Daniel S Mojon, Michael Ring, Peter Laubichler, Nikolaus Luft, Siegfried Georg Priglinger
DOI:10.4103/0301-4738.198863  PMID:28112133
Purpose: The aim of this study was to evaluate the safety and efficacy of deep sclerokeratodissection (DSKD), a new nonpenetrating technique in glaucoma surgery. Materials and Methods: Retrospective comparison between patients treated with DSKS or deep sclerectomy (DS) between 2013 and 2014. In DSKD, the first and only flap is dissected directly into clear cornea with unroofing Schlemm's canal. Beside routine clinical follow-up (visual acuity, intraocular pressure [IOP] readings, slit lamp and fundus examination), postoperative ultrasound biomicroscopy (UBM) investigation and quality of life (QoL) assessment were performed. Statistically significant differences were determined by parametric or nonparametric tests, depending on normality. Results: Twelve (38.7%) DSKDs and 19 (61.3%) conventional DS' were included in this analysis. IOP decreased significantly from 21.5 ± 9.2 mmHg to 6.2 ± 5.4 mmHg on day 1, 13.4 ± 7.7 at 1 month, 12.0 ± 4.1 at 3 months, 12.5 ± 3.1 mmHg at 6 months, and 13.4 ± 4.3 mmHg at 12 months (P < 0.01). No significant difference in the IOP was observed between the two groups at any follow-up (P > 0.1). There was no significant difference in intra- and post-operative complications, the morphology of the surgical site in the UBM as well as in the QoL assessment. Conclusion: The results indicate that DSKD is a safe and efficient new variant of nonpenetrating glaucoma surgery. IOP can be lowered as effectively compared to conventional DS, with a similarly low rate of complications. Further reports are necessary to confirm these results.
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Intraocular pressure fluctuation after water drinking test in primary angle-closure glaucoma and primary open-angle glaucoma p. 919
Yi-Chieh Poon, Mei-Ching Teng, Pei-Wen Lin, Jen-Chia Tsai, Ing-Chou Lai
DOI:10.4103/0301-4738.198851  PMID:28112134
Context: Only a few studies have assessed intraocular pressure (IOP) changes during the water drinking test (WDT) in patients with primary angle-closure glaucoma (PACG). Aims: The aim of this study is to investigate IOP changes during WDT in patients with PACG versus primary open-angle glaucoma (POAG). Settings and Design: This was a prospective and single tertiary center study. Materials and Methods: PACG and POAG patients (n = 15 each) without prior glaucoma surgery were enrolled and subjected to WDT, wherein they consumed an amount of water proportional to their body weight within 10 min. IOP was measured at baseline and every 15 min for 1 h after water intake. Statistical Analysis Used: Intergroup comparisons were performed using Mann–Whitney U-test for continuous variables and Chi-square test for categorical variables. Wilcoxon signed-ranks test was used for comparisons of IOP before and after water intake in the two groups. Regression analysis was used to determine factors associated with IOP fluctuations during WDT. Results: IOP changes over 1 h after water intake showed no significant differences between groups. The mean maximum fluctuation from baseline was 3.61 ± 2.49 and 3.79 ± 1.91 mmHg, respectively, in the PACG and POAG groups. The mean peak IOP was 19.17 ± 4.32 and 19.87 ± 3.44 mmHg in the PACG and PAOG groups, respectively. The axial length and anterior chamber depth showed no correlations with IOP fluctuations. Conclusions: We found similar IOP fluctuation curves and peak IOP values in both PACG and POAG patients subjected to WDT. These findings suggest that WDT is a useful test to induce IOP peaks in both POAG and PACG patients.
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Genetic analysis and clinical phenotype of two Indian families with X-linked choroideremia p. 924
Rajani Battu, Nallathambi Jeyabalan, Praveen Murthy, Kavita S Reddy, Jan SAG Schouten, Caroll A Webers
DOI:10.4103/0301-4738.198866  PMID:28112135
Purpose: This study aims to describe the phenotype and genotype of two Indian families affected with X-linked choroideremia (CHM). Materials and Methods: In these two families, the affected individuals and unaffected family members underwent a comprehensive ophthalmic examination including an optical coherence tomography (OCT) and electroretinogram. Blood samples were collected from the families for genetic analysis. Next generation sequencing (NGS) was done using a panel of 184 genes, which covered previously associated genes with retinal dystrophies. Sequencing data were analyzed for the CHM, RPGR, and RP2 genes that have been implicated in CHM and X-linked retinitis pigmentosa (XLRP), respectively. The identified variants were confirmed by Sanger sequencing in available individuals and unrelated controls. Results: In two unrelated male patients, NGS analysis revealed a previously reported 3'-splice site change c.820-1G>C in the CHM gene in the first family and hemizygous mutation c.653G>C (p.Ser218X) in the second family. The asymptomatic family members were carriers for these mutations. Spectral domain-OCT showed loss of outer retina, preservation of the inner retina, and choroidal thinning in the affected males and retinal pigment epithelial changes in the asymptomatic carriers. The identified mutations were not present in 100 controls of Indian origin. There were no potential mutations found in XLRP-associated (RPGR and RP2) genes. Conclusion: This report describes the genotype and phenotype findings in patients with CHM from India. The identified genetic mutation leads to lack of Rab escort protein-1 (REP-1) or affects the production of a REP-1 protein that is likely to cause retinal abnormalities in patients.
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PHOTO ESSAY Top

Swept-source optical coherence tomography findings in peripheral drusen p. 930
Vinod Kumar, Ruchir Tewari, Parijat Chandra, Atul Kumar
DOI:10.4103/0301-4738.198842  PMID:28112136
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BRIEF COMMUNICATIONS Top

Orbital melanoma with calcification: A diagnostic dilemma p. 932
Sukhdeep Bains, Usha Kim, R Shanti
DOI:10.4103/0301-4738.198849  PMID:28112137
Primary orbital melanoma is rare and has varied initial presentation. A 28-year-old female presented with proptosis and decreased vision in the left eye. Computed tomography scan showed an orbital mass with contrast enhancement and calcification around the optic nerve leading to a diagnosis of meningioma. The patient chose to be on observation. Loss of vision with an increase in proptosis was seen at 6 months follow-up. On surgical exploration, a well-defined pigmented mass was seen encasing the optic nerve. Histopathological analysis revealed a malignant melanoma. Metastatic workup was negative. Left eye lid sparing exenteration was done. A high index of suspicion is necessary in a rapidly growing suspected optic nerve sheath meningioma and a differential diagnosis including orbital melanoma be considered.
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Bleb reduction using combined photodisruptive and photocoagulative neodymium-doped yttrium-aluminum-garnet laser p. 934
Harsh Kumar, Sonal Dangda
DOI:10.4103/0301-4738.198846  PMID:28112138
This case report aims to highlight the role of photodisruptive neodymium-doped yttrium-aluminum-garnet (Nd:YAG) (1064 nm) laser in the treatment of bleb dysesthesia, which occurs in overhanging blebs or with perilimbal spread. Although treatment of such dysesthetic blebs with laser photocoagulation has been previously described, cases where the height of bleb precludes laser penetration, desired effect might not be seen. We herein describe a technique using a combination of photocoagulative (532 nm) and photodisruptive (1064 nm) Nd:YAG laser for a high bleb migrating nasally and inferiorly along the limbus in a 64-year-old female, causing hypotony and consequent macular edema. Successful reduction could be achieved within a week of treatment. By 6 weeks, intraocular pressure improved to 8 mmHg, macular edema subsided, and visual acuity improved to 6/6. Although surgical procedures to correct bleb dysesthesia are available, laser procedures being quick outpatient modalities are more comfortable for the patients.
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A case of keratitis associated with limbal relaxing incision p. 936
Aravind Haripriya, Anand Smita
DOI:10.4103/0301-4738.198862  PMID:28112139
We report a case of keratitis associated with limbal relaxing incision (LRI). The patient presented with progressive loss of vision with best-corrected visual acuity 20/40. Immature cataract with 1.43D against the rule astigmatism was noted. Prophylactic topical antibiotic was administered before surgery. He underwent uneventful phacoemulsification with intraocular lens implantation with LRI. On the 33rd postoperative day (POD), he presented with infiltrate along LRI site with mild iritis. Corneal scraping was positive for Staphylococcus aureus. After the treatment with topical moxifloxacin and fortified cefazolin, the infiltrate started to resolve. On the 50th POD, the corneal infection was resolved with marked thinning at LRI site.
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A rare case of pachydermoperiostosis associated with blepharoptosis and floppy eyelids p. 938
Bipasha Mukherjee, Md. Shahid Alam
DOI:10.4103/0301-4738.198865  PMID:28112140
Pachydermoperiostosis (PDP) is a multisystem disorder of mesenchymal origin. It is a form of hypertrophic osteoarthropathy. The typical clinical features include pachydermia, cutis verticus gyrata, digital clubbing, and periostosis. Patients present with mechanical ptosis resulting from markedly thickened eye lids. Floppy eye lids have rarely been reported in association with PDP. We describe a rare case of PDP associated with ptosis and floppy eye lids in an adult male. Meibomian gland dysfunction was documented by meibography. The patient underwent bilateral upper lid wedge resection, lateral tarsal strip, tarsectomy and external levator advancement with good cosmetic outcome following surgery.
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Utility of noninvasive imaging modalities in a retina practice p. 940
Chaitra Jayadev, Nimesh Jain, Sonia Sachdev, Ashwin Mohan, Naresh Kumar Yadav
DOI:10.4103/0301-4738.198850  PMID:28112141
Fluorescein angiography (FFA) has been the gold standard to understand, diagnose and treat retinal disorders. However, being an invasive procedure it has several limitations including adverse drug reactions. Hence, noninvasive tests that can be repeated during the course of the disease are the need of the hour. The aim of our study was to compare images of patients with retinal microvasculature pathology taken from three different imaging modalities (invasive vs. noninvasive). Lesions were detected more easily and with a greater resolution of morphology on retinal function imaging (RFI) and optical coherence tomography angiography (angio-OCT). Functional integrity of the vessels was better delineated on FFA. RFI and angio-OCT are noninvasive rapid and efficient methods to image vascular conditions with easy repeatability and negligible adverse effects.
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Transient cortical blindness after intradiscal oxygen–ozone therapy p. 944
Agostino Salvatore Vaiano, Cristiana Valente, Giacomo De Benedetti, Guido Caramello
DOI:10.4103/0301-4738.198858  PMID:28112142
A 54-year-old caucasian male developed bilateral blindness during an oxygen–ozone injection for disc herniation. The visual loss (VL) was immediately followed by severe frontal headache, vomiting, and nausea. The patient underestimated the VL showing Anton's syndrome, with a complete visual recovery after 2-month follow-up. Magnetic resonance data were consistent with recent ischemic lesions in bilateral vascular territories of posterior cerebral arteries.
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LETTERS TO THE EDITOR Top

Comment on: Bilateral macular hemorrhage due to megaloblastic anemia: A rare case report p. 947
Neha Goel
DOI:10.4103/0301-4738.198852  PMID:28112143
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Comment on: A case of perforating injury of eyeball and traumatic cataract caused by acupuncture p. 947
Preet Kanwar Singh Sodhi, Brijesh Takkar, Jaswinder Pal Singh Sodhi, Neelima Sodhi
DOI:10.4103/0301-4738.198853  PMID:28112144
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Authors' reply p. 948
Han Shuang, Kong Yichun
DOI:10.4103/0301-4738.198854  PMID:28112145
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Pseudoexfoliation on pseudophakos p. 949
Amit Mohan
DOI:10.4103/0301-4738.198859  PMID:28112146
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Authors' reply p. 950
Subashini Kaliaperumal, Vasudev Anand Rao, Shruthi B Harish, Lavanya Ashok
DOI:10.4103/0301-4738.198860  PMID:28112147
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