External ophthalmic videography – Tools and techniques Santosh G Honavar Indian Journal of Ophthalmology 2019 67(9):1389-1390 |
Bilateral granulomatous uveitis in an elderly female Jyoti Kattige, Vinaya Kumar Konana, Kalpana Babu Indian Journal of Ophthalmology 2019 67(9):1391-1391 |
Simplified updates on the pathophysiology and recent developments in the treatment of amblyopia: A review Santhan K S Gopal, Jai Kelkar, Aditya Kelkar, Abhishek Pandit Indian Journal of Ophthalmology 2019 67(9):1392-1399 Amblyopia is the most common cause of monocular visual impairment affecting 2-5% of the general population. Amblyopia is a developmental cortical disorder of the visual pathway essentially due to abnormal visual stimulus, reaching the binocular cortical cells, which may be multivariate. Ganglion cells are of two types: parvocellular (P cells) and magnocellular (M cells); they are the first step where the light energy is converted in to neural impulse. P cells are involved in fine visual acuity, fine stereopsis, and color vision and M cells are involved in gross stereopsis and movement recognition. Strabismus, refractive error, cataract, and ptosis, occurring during critical period are highly amblyogenic. The critical period extends from birth to 7--8 years. The earlier the clinically significant refractive error and strabismus are detected and treated, the greater the likelihood of preventing amblyopia. Treatment for amblyopia in children includes: optical correction of significant refractive errors, patching, pharmacological treatment, and alternative therapies which include: vision therapy, binocular therapy, and liquid crystal display eyeglasses are newer treatment modalities for amblyopia. Age of starting the treatment is not predictive of outcome, instituting treatment on detection and early detection plays a role in achieving better outcomes. This review aims to give a simplified update on amblyopia, which will be of use to a clinician, in understanding the pathophysiology of the complex condition. We also share the cortical aspects of amblyopia and give recent developments in the treatment of amblyopia. |
Observer-masked trial comparing efficacy of topical olopatadine (0.1%), bepotastine (1.5%), and alcaftadine (0.25%) in mild to moderate allergic conjunctivitis Lakshey Dudeja, Anuja Janakiraman, Ishani Dudeja, Kaustubh Sane, Manohar Babu Indian Journal of Ophthalmology 2019 67(9):1400-1404 Purpose: With increasing environmental pollution, the incidence of allergic conjunctivitis is increasing. Newer anti-allergic medications with combined anti-histaminic and mast cell stabilization action can help reducing the use of topical steroids for milder form of disease. There is no study directly comparing olopatadine (0.1%), bepotastine (1.5%), and alcaftadine (0.25%) for mild to moderate allergic conjunctivitis cases. Hence, we decided to methodically study the efficacy of three topical medications. Methods: Prospective, observer-masked clinical trial enrolled 45 patients with 15 patients in each of the three groups. Patients with mild to moderate allergic conjunctivitis were sequentially assigned to respective groups, and relief of symptoms and signs were noted upto 1-month follow-up. Results: All three topical medications faired almost equally in resolving symptoms of the patients with mild to moderate allergic conjunctivitis, and most of them reported complete relief after 1 week of use of medication. Few cases with limbal or palpebral papillae reported symptomatic relief after use of medication, but the resolution of these signs was not noted in all three groups. Conclusion: We concluded similar efficacy of three medications in relieving symptoms and inefficacy in regressing palpebral and limbal papillae in cases of allergic conjunctivitis. |
Ocular surface status in patients with hemifacial spasm under long-lasting treatment with botulinum A toxin: A comparative fellow eye study Marco Pellegrini, Costantino Schiavi, Leonardo Taroni, Stefano Sebastiani, Federico Bernabei, Matilde Roda, Fabiana Moscardelli, Giuseppe Giannaccare Indian Journal of Ophthalmology 2019 67(9):1405-1409 Purpose: The purpose of this study was to assess the effect of long-lasting botulinum A toxin injections on ocular surface parameters and to further investigate the relationship between these parameters and the duration of the treatment. Methods: In this retrospective study, patients with unilateral hemifacial spasm who were receiving botulinum A toxin injections for at least 1 year were analyzed. Healthy contralateral eyes acted as controls. The ocular surface examination included Ocular Surface Disease Index questionnaire, Schirmer test type I, tear film break-up time (TFBUT), tear osmolarity, corneal sensitivity, and corneal fluorescein staining. Results: Twenty-six patients (6 males and 20 females; mean age 76.4 ± 8.9 years) were included in the study. The mean duration of the treatment was 7.2 ± 5.4 years, and the mean frequency of injections was of one every 3.3 ± 0.4 months. TFBUT, Schirmer test, and corneal sensitivity were significantly lower in the eye homolateral to hemifacial spasm compared with the contralateral one (5.9 ± 3.2 vs 7.5 ± 4.2 s, P = 0.001; 6.2 ± 3.4 vs 9.2 ± 6.6 mm, P = 0.031; 50.8 ± 3.7 mm vs 52.3 ± 2.9 mm, P = 0.048, respectively). One month after the last injection, TFBUT further decreased from 5.9 ± 3.2 to 2.3 ± 1.2 s (P = 0.028). A significant positive correlation was found between the duration of treatment and tear osmolarity (ρ = 0.542, P = 0.025). Conclusion: Patients with hemifacial spasm under long-lasting treatment with serial botulinum A toxin injections showed a reduction in tear film production and stability, as well as corneal sensitivity in the treated eye compared with the contralateral one. Tear film stability further decreased 1 month after the last injection. |
Gas permeable contact lens fitting in keratoconus: Comparison of different guidelines to back optic zone radius calculations Sara Ortiz-Toquero, Guadalupe Rodriguez, Victoria de Juan, Raul Martin Indian Journal of Ophthalmology 2019 67(9):1410-1416 Purpose: Compare the agreement between the finally fitted back optic zone radius (BOZR) of a spherical gas permeable (GP) contact lense (CL) with those proposed by different guidelines currently available to fit GP CLs in keratoconus. Methods: The BOZR fitted in 81 keratoconus eyes (46 patients) were recorded and compared with the BOZR calculated with ten different guidelines (identified after a literature review) proposed to calculate the first diagnostic lens BOZR to be fitted in keratoconus. Arithmetic and absolute mean difference between both BOZR were calculated (paired t-test). The success rate of each guideline (difference between both BOZR ≤0.05 mm) was calculated for different keratoconus stages (Amsler–Krumeich classification). Agreement between BOZR was evaluated using Bland-Altman analysis. Results: The BOZR proposed by all guidelines correlated with the final BOZR that was fitted (R2 > 0.71; P < 0.01). A statistically significant difference was found between the BOZR suggested by all guidelines and the BOZR that was prescribed (P < 0.05), except for three Guidelines (P ≥ 0.11). CALCULENS.com presented the best agreement (mean difference of 0.00 ± 0.12 mm), and 50.6% of cases showed ≤0.05 mm of difference with the BOZR that was fitted. However, the worst guideline showed an agreement of −0.38 ± 0.22 mm, and just 3.8% of cases had ≤0.05 mm of difference with the final fitted BOZR. Conclusion: BOZR calculated with most of the analyzed guidelines shows statistical differences with final fitted BOZR, suggesting a lack of clinical validation of these guidelines. The selection of the BOZR with CALCULENS.com could provide a better starting point for spherical GP CL fitting in keratoconus eyes. |
Ocular biometry characteristics and corneal astigmatisms in cataract surgery candidates at a tertiary care center in North-East India Tanie Natung, Wakaru Shullai, Benjamin Nongrum, Lanalyn Thangkhiew, Prasenjit Baruah, Mary L Phiamphu Indian Journal of Ophthalmology 2019 67(9):1417-1423 Purpose: The purpose of this study is to determine the ocular biometry characteristics and corneal astigmatisms using partial coherence laser interferometry in patients aged 40 years or above undergoing cataract surgery in a medical college in North-East India. Methods: In a hospital-based cross-sectional study, ocular biometry characteristics such as axial length (AL), anterior chamber depth (ACD), white-to-white (WTW) diameter, corneal power (K), and corneal astigmatisms (D) of consecutive eligible cataract patients in a medical college in North-East India between January 2015 and December 2017 were determined using the intraocular lens (IOL) master. Height and weight were also measured. Results: A cross-sectional study evaluated ocular biometry characteristics of 641 eyes in 641 eligible patients. The mean age was 64.04 ± 10.81 years. The mean AL, ACD, WTW, corneal power, IOL power, and body mass index (BMI) were 23.34 ± 1.12 mm, 3.12 ± 0.39 mm, 11.92 ± 0.54 mm, 44.41 ± 1.50 diopter (D), 20.53 ± 2.79 D, and 26.12 ± 4.32, respectively. Against-the-rule, with-the-rule, and oblique astigmatisms were 48.4%, 33.2%, and 18.4%, respectively. Corneal astigmatism of ≥1 D was found in 292 eyes (45.55%) and >1.5 D in 182 eyes (28.39%). AL had statistically significant correlation with ACD, WTW, K, IOL power, height and weight but not with age. By multivariate analysis, AL was found to be associated with ACD, WTW, K and IOL power (P ≤ 0.05). The mean AL was negatively correlated with the mean K (R-square 0.138). Conclusion: This study is likely to provide the initial normative data for ocular biometry values in Indian adults 40 years or above, because such data is lacking in Indians using the IOL master. This will also help ophthalmologists in planning and improving the quality of surgical outcomes in phacoemulsification and phacorefractive surgeries by choosing the appropriate IOL and incision location. |
A comparison of posterior capsular opacification after implantation of three different hydrophobic square edge intraocular lenses H Vijaya Pai, Atiya Pathan, Yogish Subraya Kamath Indian Journal of Ophthalmology 2019 67(9):1424-1427 Purpose: To compare the posterior capsular opacification (PCO) after implantation of three types of hydrophobic square edge intraocular lenses (IOLs). Methods: A single-center, hospital-based, cross-sectional, observational study was conducted wherein patients with senile cataract who had undergone phacoemulsification by a single surgeon, with the implantation of three different types of square edge, hydrophobic IOLs [Group 1: enVista, Bausch and Lomb; Group 2: Tecnis 1 ZCBOO, AMO and Group 3: Acrysof IQ SN60WF, Alcon], and followed up for 12 months were included. The PCO was graded clinically and scored using the EPCO 2000 software. Results: 90 eyes of 90 patients were included. There was no significant difference in the PCO with respect to age, gender, or associated presence of systemic disease. The median PCO score was 0.035, 0.045 and 0.085 in groups 1, 2 and 3, respectively. The PCO grade and score differences between the groups were statistically significant with P < 0.001. Conclusion: The hydrophobic nature and posterior square edge design in the IOLs probably contributed to the minimal visually-significant PCO in all the groups, in our study. However, PCO scores were lesser in the square edge IOLs having a continuous 360 degrees posterior enhanced barrier, than those without this feature. |
Rotation versus non-rotation of intraocular lens for prevention of posterior capsular opacification Rajesh S Joshi, Shrutika A Chavan Indian Journal of Ophthalmology 2019 67(9):1428-1432 Purpose: To study the effect of rotation of intraocular lens (IOL) on posterior capsular opacification (PCO) in eyes with phacoemulsification. Methods: This was a prospective, comparative, randomized case series. One eye of each patient was randomized to one of two groups. The 360-degree rotation of IOL was carried out after its placement in the capsular bag (rotation group). The control group had no rotation of IOL. PCO was analyzed by an independent observer on EPCO computer analysis system at 6, 12, 24, and 36 months. Results: The study included 50 patients (100 eyes) with senile cataracts scheduled for phacoemulsification and IOL implantation. The median age in 2 groups was 66 years. 25% quartile age in both the group was 62 years (P = 0.06). There were 30 males, and 20 females. The median PCO score at 6, 12 and 24 months was significantly low in the rotation group (0.15, 0.13, 0.22) compared to the control group (0.22, 0.23, 0.25). There was no significant difference in PCO score between the two groups from 24-36 months. The median PCO score at 36 months was 0.2 in both the groups. At the end of three years, 4 eyes (8%) in the rotation group, and 10 eyes (20%) in the control group needed Nd:YAG capsulotomy (P = 0.04). Conclusion: Rotation of IOL in the capsular bag decreases PCO and Nd:YAG capsulotomy rate. |
Intraocular pressure reduction in a spectrum of angle closure disease following cataract extraction Surinder Singh Pandav, Natasha Gautam Seth, Atul Arora, Faisal Thattaruthody, Ajay Jurangal, Sushmita Kaushik, Srishti Raj Indian Journal of Ophthalmology 2019 67(9):1433-1438 Purpose: The purpose is to study the effect of cataract extraction on intraocular pressure (IOP) in patients with angle closure disease (ACD). Methods: In this retrospective study, patients with ACD including medically uncontrolled and advanced primary angle closure glaucoma (PACG) who underwent only cataract surgery were included. The IOP trend was analyzed at postoperative day 1, day 7, 1 month, 3 months, 6 months, 1 year, and final follow-up along with requirement of antiglaucoma medication (AGM)/surgery. Results: A total of 110 eyes of 79 patients [primary angle closure suspect (PACS): 21, PAC: 34, PACG: 55 eyes] were analyzed. Of these patients, 31 eyes had advanced PACG and 20 eyes had medically uncontrolled glaucoma. Best-corrected visual acuity >6/12 was seen in 51 eyes at baseline and 87 eyes at final follow-up. After cataract surgery alone, there was significant reduction (median) in IOP [19.1 ± 18.00% (18.8) in PACS (P < 0.01), 8.55 ± 17.9% (10) in PAC (P = 0.04), 22.82 ± 15.45%(14.3) in PACG (P < 0.01), 18.27 ± 15.99% (14.5) in advanced PACG (P = 0.01) and 36.56 ± 14.58% (28.57) in medically uncontrolled glaucoma (P < 0.01)] and AGM [51.85% (1) in PAC, 32.35% (2) in PACG, 17.71% (2) in advanced PACG, and 40.74% (1.5) in medically uncontrolled PACD] at median follow-up of 1, 2.5, 1, 1.3, and 1 year. Eleven PACG patients, who were on systemic medication preoperatively, were off systemic therapy at final follow-up, while six other PACG eyes (10.9%) required glaucoma surgery. Conclusion: Cataract surgery leads to significant drop in IOP across the spectrum of ACD with visually significant cataract. Cataract surgery may be considered initially for IOP control even in advanced or medically uncontrolled PACG followed by glaucoma surgery later if required. |
ΩτοΡινοΛαρυγγολόγος Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,
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00306932607174,
alsfakia@gmail.com,
Anapafseos 5 Agios Nikolaos 72100 Crete Greece,
Medicine by Alexandros G. Sfakianakis
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