BACKGROUND This study aimed to investigate the clinical application of phakic toric intraocular collamer lens (TICL) implantation in treating ametropia following deep anterior lamellar keratoplasty (DALK) for patients with keratoconus, especially the effectiveness and safety of high astigmatism and indications of TICL implantation after corneal transplantation. METHODS Using the self-controll...

Corneal ectasia is a serious vision-threatening complication of laser in situ keratomileusis (LASIK). It is associated with progressive corneal steepening, an increase in myopia and astigmatism, and decrease in uncorrected visual acuity. Before LASIK presence of risk factors (corneal thickness, refractive error, presence of clinical and subclinical corneal pathologies) should be studied so pati...

To quantify clinical and operative factors influencing comeal graft outcome. MeVlods Multifactorial analysis of 2242 grafts registered by United Kingdom Transplant Service from July 1987 to June 1990. Results Increased risk of graft failure with: pm operative stmmal oedema; small trechine size: difference in donor and recioient sizes areater than 0.25 mm: and mixed ccntinuous and interrupted su...

BACKGROUND To compare outcomes of femtosecond laser-assisted deep anterior lamellar keratoplasty (FSL-DALK) and penetrating keratoplasty (FSL-PK) for the treatment of keratoconus. METHODS Twenty eight eyes underwent FSL-DALK (consisted of 12 eyes in the FSL-DALKa subgroup without baring the Descemet's membrane and 16 eyes in the FSL-DALKb subgroup baring the Descemet's membrane using big-bubb...

BACKGROUND As new methods for corneal curvature measurement have evolved, users of videokeratscopes need to know the practical limitations of these instruments. We assessed agreement between keratometry and videokeratography in measuring highly astigmatic corneas. METHODS Two independent examiners made three keratometric and videokeratographic measurements on each of 33 corneas after penetrat...

Aim: To determine the amount and type of surgically induced astigmatism (SIA),in superior and superotemparal sclera incisicion in small incision cataract surgery. Methods: A prospective randomized comparative clinical study. Study was done on a total number of 100 patients aged 40y and above with senile cataract. 50 cases were randomly assigned superior sclera group and other 50 cases were allo...

Biological soft tissue are of special interest to the researchers as they exhibit unique anisotropic behaviour and are leading contributors to the quality of outcome of a surgical procedure. In this paper attempts have been made to review the strategy adopted by various researchers for conducting experiments in order to understand the mechanical behaviour of cornea and their use in ophthalmolog...