Results 61 to 70 of about 13,094 (205)
Indian Journal of Ophthalmology, 2017 Purpose: This study aimed to evaluate the theoretical influence on intraocular lens power (PIOL) calculation of the use of keratometric approach for corneal power (Pc) calculation in keratoconus and to develop and validate an algorithm preliminarily to ...
Vicente J Camps +3 more
doaj +1 more source
The thinnest, steepest, and maximum elevation Corneal locations in noncontact and contact lens wearers in keratoconus [PDF]
, 2013 PURPOSE:: To assess the relationship between the thinnest corneal location and the steepest and maximum elevation corneal locations in subjects with keratoconus and the effect of gas permeable contact lens wear on the location of these points.
Auffarth +24 more
core +1 more source
Ocular surface characteristics and its association with soft contact lens fitting
Ophthalmic and Physiological Optics, Volume 45, Issue 7, Page 1715-1728, November 2025.Abstract Purpose To analyse the associations between ocular surface shape parameters and soft contact lens fitting. Methods A total of 106 eyes of 53 participants (53 right and 53 left eyes) fitted with standard silicone hydrogel soft lenses were analysed retrospectively.
Javier Rojas Viñuela +4 more
wiley +1 more source
Revista Cubana de Oftalmología, 2010 OBJETIVO: Determinar la efectividad del método de Maloney para el cálculo del lente intraocular en pacientes operados con cirugía refractiva corneal en el Instituto Cubano de Oftalmología «Ramón Pando Ferrer» durante el año 2007.
Eneida de la C Pérez Candelaria +4 more
doaj
Triple procedure; analysis of outcome, refraction, and intraocular lens power calculation [PDF]
, 1997 AIMS: A total of 97 triple procedures performed over a 6 year period were studied retrospectively to determine the best approach to calculate intraocular lens power.
Beekhuis, W.H. (Houdijn) +5 more
core +2 more sources
The role of astigmatism in myopia development, myopia progression and myopia control
Ophthalmic and Physiological Optics, Volume 45, Issue 7, Page 1946-1964, November 2025.Abstract Aims/Purpose Myopia arises primarily due to excessive axial elongation and is associated with an increased risk of ocular complications and visual impairment, particularly in high myopia. Although astigmatism may have implications on refractive development, the role of astigmatism in myopic eye growth and the effectiveness of myopia control ...
Stephanie Kearney +2 more
wiley +1 more source
BioengineeringCataracts are characterized by the crystalline lens of the eye becoming cloudy, and dry eye disease (DED) is a multifactorial disease in which the homeostasis of the tear film is lost.
Atsushi Kawahara
doaj +1 more source
Indian Journal of Ophthalmology, 2015 A professional mountain trekker presented with gradual, moderate visual decline in one eye. The subnormal vision could not be explained by the examination of anterior and posterior segment of either eye, which was unremarkable.
Dhananjay Shukla
doaj +1 more source
Impact of contact lens correction on wavefront aberrations and vision quality in keratoconus
Ophthalmic and Physiological Optics, Volume 45, Issue 7, Page 1811-1828, November 2025.Abstract Purpose To review the optical principles of contact lens correction in keratoconus, with a focus on residual ocular wavefront error and its impact on vision performance. Findings Corneal rigid gas permeable (RGP) contact lenses, commonly used in keratoconus management, often fail to improve vision quality to levels observed in non‐diseased ...
Gavin Swartz +3 more
wiley +1 more source
Abstract The technique of measuring the corneal power by keratometry is reviewed. The importance of the keratometer index for the translation of the radius into dioptric power is explained, and evidence is given that the conventional index of 1.3375 gives a corneal power which is higher than the physiological value.
+4 more sources