ABSTRACT
Purpose: To objectively evaluate surgically induced astigmatism (SIA) after phacotrabeculectomy using keratometry and topography and to compare the magnitude of SIA and the refractive outcomes of single-site and twin-site phacotrabeculectomies. Methods: Forty prospective subjects were enrolled in the study and were randomized into single-site and twin-site cohorts. SIA was objectively assessed using keratometry and Orbscan before and at three months after surgery. For both cohorts, the changes in SIA were assessed using power vector analysis compared at the third month after surgery. Results: Each cohort consisted of 20 eyes. The preoperative parameters and postoperative IOP were comparable and similar, respectively, in both the cohorts (P = 0.1). Majority of the patients in both the cohorts had preoperative against-the-rule (ATR) astigmatism. The median change in SIA at the three-month postoperative visit was similar in both the cohorts, with a small increase in ATR astigmatism. Although the SIA change measured by keratometry in the J0 component was similar in both the groups (P = 0.54), that of J45 was significantly different (P = 0.01). However, the median change in SIA was similar in both the groups for both the J0 (P = 0.52) and J45 components (P = 0.94) when measured by Orbscan. The SIA in both the groups measured with keratometry (P = 0.62) and topography (P = 0.52) were clinically and statistically similar. In both the groups, the refraction was similar at 1 month and 3 months. Conclusion: The SIA as measured with keratometry and topography was similar in the single-site and twin-site phacotrabeculectomy cohorts at the end of 3-months. The postoperative refraction was stabilized in 1-month in both the groups.
ABSTRACT
Glaucoma management during pregnancy is a challenge for the patient and doctor. During pregnancy, the intraocular pressure (IOP) decreases. However, some women with preexisting glaucoma have elevated IOP requiring enhanced medical treatment. Glaucoma refractory to medical treatment combined with disease progression may necessitate laser trabeculoplasty or surgical intervention. Surgery during pregnancy has potential risks for both the mother and fetus. The challenges include problems with anesthesia, positioning for surgery, difficulties in the surgical procedure, potential risk with antimetabolites, and concerns with the management of postoperative complications. We report two case scenarios that highlight the challenges associated with trabeculectomy in pregnant women and the modifications that can be adopted to improve safety and the efficacy of glaucoma filtering surgery during pregnancy.
ABSTRACT
Purpose: To describe the prevalence of various types of childhood glaucomas, their clinical features and treatment methods. Methods: We prospectively included consecutive children with glaucoma presenting to glaucoma clinic for the first time between March 2013 and May 2014. We classified childhood glaucomas as per the classification proposed by Congenital Glaucoma Research Network. Results: Of the 275 children (449 eyes) with glaucoma during this period, primary glaucomas constituted 56% (n = 252 eyes of 145 children), including 169 eyes (37.64%) of 97 children with primary congenital glaucoma (PCG), 16 eyes (3.56%) of 10 children with infantile glaucoma, and 67 eyes (14.9%) of 38 children with juvenile open angle glaucoma. Among these, 85% (214 eyes of 107 children) had bilateral involvement. Secondary glaucomas constituted 44%; they were glaucoma associated with ocular anomalies 18% (n = 80 eyes), glaucoma associated with acquired conditions (steroid induced and traumatic glaucoma) 14% (n = 61 eyes), glaucoma following congenital cataract surgery 7.6% (n = 34 eyes), and glaucoma associated with systemic or syndromic conditions 5% (n = 22 eyes). In primary glaucomas, boys and girls were equally affected (1:1), and more boys (3.8:1) had acquired glaucomas. Close to 80% PCG eyes were managed surgically with combined trabeculotomy and trabeculectomy (CTT). Majority of secondary glaucomas were managed medically. Conclusion: In our cohort, PCG was the most common childhood glaucoma and CTT was the most common surgery performed in these eyes. Steroid-induced and traumatic glaucomas were the most common acquired glaucomas; appropriate measures should be taken to avert these preventable glaucomas in children.