Abstract
Purpose: To study the role of B-scans ultrasound in detection of posterior segment pathology in hyper mature cataract cases. Material and method: This study was conducted in Department of Ophthalmology, Chirayu Medical College and Hospital, Bhopal from October 2012 to October 2014.The study included 400 patients of dense cataract evaluated with high resolution ultrasonography for posterior segment lesions. Results: The cases were divided according to age ranging from 0-80 years. Male predominance was seen with sex ratio 1.38:1 (M:F). Loss of vision and redness of eye were the leading symptoms. Posterior staphyloma was seen in 15 (3.52%) cases, Vitreous hemorrhage in 7 (1.64%), Vitreous membrane in 5 (1.20%), Chorioretinal Thickening in 6 (1.41%), and Retinal detachment 4 (0.94%) cases. Out of 400 patients 79 (19.6%) were having ocular and systemic risk factors like hypertension, diabetes, raised IOP, uveitis, myopia. Conclusion: From, the present study it was noted that B-scan is very efficient tool in diagnosing various ocular abnormalities. B-scan can categorize the lesions in the posterior chamber well, depending on the echotexture and anatomy. Preoperative posterior segment evaluation with ultrasound in patients with dense cataract can be used to detect pathologies that may influence the surgical strategy and the postoperative visual outcomes.
Highlights
B-scan ultrasonography is a valuable tool for evaluating the posterior segment in eyes with advanced cataracts
We aimed to study the incidence of significant posterior segment abnormalities in eyes with advanced cataracts precluding a direct visualization of fundus prior to cataract surgery
Ultrasonographic examination can provide information regarding the posterior segment pathology which helps in explaining accurate prognosis postoperatively though in some disorders such as branch and central retinal vein occlusion, macular hole, diabetic maculopathy, optic atrophy could not be diagnosed preoperatively
Summary
B-scan ultrasonography is a valuable tool for evaluating the posterior segment in eyes with advanced cataracts. Ophthalmic ultrasonography has become the most important accurate diagnostic imaging modality for directly evaluating lesions of posterior segment having opaque ocular media caused by corneal opacities, anterior chamber opacities, dense cataracts, vitreous hemorrhage, inflammatory opacities which make clinical examination and ophthalmoscopic examination difficult and least informative [3]. Such visualization is considered important to provide accurate prognosis for vision after cataract surgery over the last 30 years, B-scan ultrasonography has greatly advanced which has enabled us to study posterior segment of the eye even in the presence of opaque media like dense cataract. We aimed to study the incidence of significant posterior segment abnormalities in eyes with advanced cataracts precluding a direct visualization of fundus prior to cataract surgery
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