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Three new species ofTrichogramma occurring in India are described. Two of these were reared from eggs of the sugarcane stem-borerChilotraea infuscatellus, while the third was found attacking eggs ofAchaea janata, Tiracola plagiata andHeliothis armigera. The diagnostic value of the male genitalia in this genus is emphasized and a discussion is presented(More)
PURPOSE To evaluate the effectiveness and safety of accelerated corneal collagen cross-linking (ACXL) in patients below 14 years of age with progressive keratoconus. MATERIALS AND METHODS Thirty eyes of 18 patients with established progressive keratoconus underwent preoperative and postoperative visual acuity assessment, topography, and specular(More)
PURPOSE To study the effect of different protocols of collagen cross-linking on visual, refractive, and tomographic parameters in patients with progressive keratoconus. DESIGN Prospective randomized interventional study. METHODS In this study, 138 eyes of 138 patients with progressive keratoconus underwent corneal collagen cross-linking (CXL). Following(More)
AIM To evaluate the efficacy and safety of corneal collagen crosslinking (CXL) in the management of culture proven microbial keratitis. METHODS 15 eyes of 15 patients of microbial keratitis were included in the study. Nine patients had bacterial keratitis and six had fungal keratitis. All patients underwent microbiological evaluation to identify the(More)
PURPOSE To report the profile of microbial keratitis occurring after corneal collagen cross-linking (CXL) in keratoconus patients. METHODS A retrospective analysis of 2350 patients (1715 conventional CXL, 310 transepithelial CXL, and 325 accelerated CXL) over 7 years (from January 2007 to January 2014) of progressive keratoconus, who underwent CXL at a(More)
PURPOSE The purpose of this study is to compare the efficacy and safety of Epi-Bowman Keratectomy (EBK) using Epi-clear™ epikeratome with a mechanical scraper for corneal epithelium debridement during photorefractive keratectomy (PRK) and corneal collagen cross-linking (CXL). METHODOLOGY Sixty eyes of 30 patients undergoing PRK and 44 eyes of 44 patients(More)
Keratoconus is a slowly progressive, noninflammatory ectatic corneal disease characterized by changes in corneal collagen structure and organization. Though the etiology remains unknown, novel techniques are continuously emerging for the diagnosis and management of the disease. Demographical parameters are known to affect the rate of progression of the(More)
A comparative study was made of the fertility, fecundity and longevity ofTrichogramma confusum Vigg. reared in the laboratory on eggs ofCorcyra cephalonica St., vs. a wild type population of the same species. Laboratory reared females showed a significantly higher degree of sterility than wild-type females while sterility amongst males did not differ(More)
In the context of paracontact geometry, η-Ricci solitons are considered on manifolds satisfying certain curvature conditions: R(ξ, X) · S = 0, S · R(ξ, X) = 0, W 2 (ξ, X) · S = 0 and S · W 2 (ξ, X) = 0. We prove that on a para-Kenmotsu manifold (M, φ, ξ, η, g), the existence of an η-Ricci soliton implies that (M, g) is quasi-Einstein and if the Ricci(More)