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   1995| October-December  | Volume 43 | Issue 4  
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Complications of cataract surgery
Madhukar K Reddy
October-December 1995, 43(4):201-209
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Principles and paradigms of pediatric cataract management
Surendra Basti, Mark J Greenwald
October-December 1995, 43(4):159-176
Propensity for increased postoperative inflammation and capsular opacification, a refractive state that is constantly in a state of flux due to growth of the eye, difficulty in documenting anatomic and refractive changes due to poor compliance, and a tendency to develop amblyopia, makes management of cataract in the child different from that in the adult. The recent past has unraveled several caveats of pediatric cataract management - the importance of atraumatic surgery and complete removal of lens matter, benefits of in-the-bag intraocular lens(IOL) implantation, role of titrating IOL power to counter refractive changes due to growth of the eye, prudery of continuously following these eyes for early detection of aphakic glaucoma and benefits of some surgical innovations. Although these promise to significantly improve our management of pediatric cataract, their long-term benefits are yet to be determined. We will also have to harness newer techniques, especially in the areas of wound construction and capsule management, and will have to develop effective strategies for the refractive management of infantile aphakia.
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Colour of the nucleus as a marker of nuclear hardness, diameter and central thickness
Vamsi Krishna Gullapalli, Praveen R Murthy, KR Murthy
October-December 1995, 43(4):181-184
Hundred and thirty patients, aged above 40 years, with senile cataract were examined. Age and colour were selected as the probable preoperative indicators of nuclear hardness. The lens material collected after manual extracapsular extraction was washed and the nucleus isolated. The diameter and central thickness of the nucleus were measured; the mean diameter and mean central thickness were 7.13 mm 0.76 and 3.05 mm 0.48, respectively. The hardness of the nucleus was measured with a lens guillotine designed by us. Regression analysis was applied to the parameters measured and these were compared with the colour and age. The parameters measured had the following relationship: Colour vs hardness (r value = 0.7569) (p < 0.001) Colour vs diameter (r value = 0.3962) (p < 0.001) Colour vs central thickness (r value = 0.4785) (p < 0.001) Age vs hardness (r value = -0.0499) (p > 0.05) Age vs diameter (r value = 0.0987) (p > 0.05) Age vs central thickness (r value = 0.1700) (p > 0.05) The values showed that colour had a statistically significant relationship with all the 3 parameters (p < 0.001), while age had no significant relationship with the same parameters. The results indicated that colour can be used more reliably to predict physical characteristics of the cataractous lens nucleus, the preoperative knowledge of which would help the surgeon in planning small-incision surgery including phacoemulsification.
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Progressive growth in melanocytoma of the optic nerve head
Vishali Gupta, Amod Gupta, MR Dogra, SS Pandav
October-December 1995, 43(4):198-200
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Capsulorhexis: Its safe limits
Abhay Vasavada, Jagruti Desai
October-December 1995, 43(4):185-190
We undertook this study to determine the safe limits of capsulorhexis during nucleus expression in 40 eyes of patients undergoing extracapsular cataract extraction (ECCE) with a posterior chamber intraocular lens (PC IOL) implantation and in 30 cadaver eyes. In group I (patient eyes), capsulorhexis of 4.5 to 7.5 mm was performed and the nucleus was expressed by hydrodissection. The nuclei measured 4.5 to 9.0 mm. One relaxing incision at 12 o'clock position had to be placed in 9 patients. In group II (cadaver eyes), continuous curvilinear capsulotomies of 4.0, 4.5, 5.0, 5.5, 6.0 and 6.5 mm were made in 5 eyes each. No relaxing incisions were placed. In both the groups, nuclei of all sizes could be safely delivered through intact capsulotomies measuring 5.5 mm or more. In two patient eyes, posterior capsule rupture occurred with rhexis measuring 4.5 and 5.0 mm, respectively. In the cadaver eyes, intracapsular extraction occurred in 4 eyes with rhexis measuring 5.0 mm or less. We conclude that a rhexis less than 5.5 mm is not safe for nucleus delivery during ECCE.
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Rhodotorula causing chronic Dacryocystitis: A case report
Sumathi Muralidhar, C Munasira Sulthana
October-December 1995, 43(4):196-198
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Endophthalmitis caused by Anaerobic bacteria
Tarun Sharma, Lingam Gopal, Sunil Parikh, SS Badrinath, HN Madhavan, BN Mukesh
October-December 1995, 43(4):191-194
A retrospective analysis of 22 patients who underwent pars plana vitrectomy for endophthalmitis and had culture-proven anaerobic bacteria, was done. Elimination of infection with attached retina and recovery of ambulatory vision ≥2/60 were considered as anatomic success and functional success, respectively. Mean follow-up period was 12.7 months (range, 2 to 48 months). Anatomic success was attained in 14 (63.6%) eyes and functional success in 12 (54.6%) eyes. A poor preoperative visual acuity was found to be associated with poor functional outcome (p < 0.046). In endophthalmitis, a routine anaerobic culture of intraocular specimen is recommended.
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Changing trends in the intraocular lens acceptance in rural Tamil Nadu
N Venkatesh Prajna, Raheem Rahamatullah
October-December 1995, 43(4):177-179
A retrospective analysis spanning a 3-year period (1992-1994) was done to determine the rate of acceptance and affordability of intraocular lenses among the rural population of Tamil Nadu. The acceptance rate increased at an average of almost 70 to 100% as compared to a 17 to 20% increase in the total number of cataract surgeries performed per year. Analysing by mode of admission, the proportion of intraocular lens acceptance was more among the patients who directly presented at the hospital than the patients referred from eye camps. The overall acceptance rate was high and the ophthalmologist should be prepared to meet the likelihood of greater demand for intraocular lens from this population.
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Phaco triples: Are we crossing the limit?
Ravi Thomas
October-December 1995, 43(4):157-158
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Retained wooden foreign bodies in the orbit: A case report
Deepak Kumar, Sandeep Saxena, Upsham Goel
October-December 1995, 43(4):195-196
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