Results 21 to 30 of about 675,436 (224)
Scleral topography and its usefulness in scleral lens fitting
African Vision and Eye Health, 2021 Background: Scleral lenses are one of the best options to manage corneal irregularities and severe ocular surface diseases. As scleral lenses rest on the sclera, scleral topographical data are necessary when fitting these lenses.
Raymond G. Mabaso, Hlupheka L. Sithole
doaj +1 more source
Российский офтальмологический журнал, 2022 Purpose: to evaluate the wave-front and accommodation changes in various stages of keratoconus corrected by scleral contact lenses.Material and methods. 20 patients (39 eyes) aged 18–37 with keratoconus of various stages (8 eyes with stage I, 3 eyes with
E. P. Tarutta +5 more
doaj +1 more source
Kerala Journal of Ophthalmology, 2023 Purpose: This review focuses on the optical and therapeutic benefits which can be offered to patients by evaluating them for scleral contact lenses, and the purpose of this study is to select the indications and to find out how efficient the scleral ...
Aneeta Jabbar
doaj +1 more source
New two-point scleral-fixation technique for foldable intraocular lenses with four hollow haptics [PDF]
International Journal of Ophthalmology, 2016 The study was to report a new two-point scleral-fixation technique for foldable intraocular lenses with four haptics. Lenses were slid into the anterior chamber from a 2.8 mm corneal incision and fixed under two sclera flaps at two opposite points.
He-Ting Liu +2 more
doaj +1 more source
Delhi Journal of Ophthalmology, 2013 Contact lenses are classified on the basis of the bearing zone area as Corneal, Corneo-scleral and Scleral lenses. Scleral lenses are large in diameter (18 - 23mm) and have a bearing completely on sclera.
Nidhi Gupta, Minal Kaur, Abhilek
doaj +1 more source
The variability of corneal and anterior segment parameters in keratoconus [PDF]
, 2016 Purpose: To analyse, describe and test diverse corneal and anterior segment parameters in normal and keratoconic eyes to better understand the geometry of the keratoconic cornea. Method: 44 eyes from 44 keratoconic patients and 44 eyes from 44 healthy
Cardona Torradeflot, Genís +3 more
core +1 more source
Microstructure and growth of the lenses of schizochroal trilobite eyes [PDF]
, 2013 Lenses within the schizochroal eyes of phacopine trilobites are made principally of calcite and characterisation of them using light microscopy and high-resolution electron imaging and diffraction has revealed an array of microstructural arrangements ...
Lee, Martin R. +2 more
core +1 more source
F1000Research, 2022 Background: While scleral lens practise has improved over the years due to factors such as availability of lenses with better materials and designs as well as experience of practitioners, a lack of objectivity appears to remain in terms of assessment of ...
Simmy Chaudhary +3 more
doaj +1 more source
Refractive change following pseudophakic vitrectomy: a retrospective review [PDF]
, 2008 Background To assess the occurrence and magnitude of refractive change in pseudophakic eyes undergoing 20 gauge pars plana vitrectomy without scleral buckling and to investigate possible aetiological factors.
Anthony Hildreth +19 more
core +5 more sources
Evolution of the eyes of vipers with and without infrared-sensing pit organs [PDF]
, 2019 We examined lens and brille transmittance, photoreceptors, visual pigments, and visual opsin gene sequences of viperid snakes with and without infrared-sensing pit organs. Ocular media transmittance is high in both groups.
Douglas, R. H. +12 more
core +3 more sources