Modeling the biomechanics of laser corneal refractive surgery
We present a finite element model of the human cornea used to simulate corneal refractive surgery according to the three most diffused laser procedures, i. e., photo-refractive keratectomy (PRK), laser in-situ keratomileusis (LASIK) and small incision lenticule extraction (SMILE). The geometry used for the model is patient-specific in terms of anterior and posterior surfaces of the cornea and intrastromal surfaces originated by the planned intervention. The customization of the solid model prior to finite element discretization avoids the struggling difficulties associated with the geometrical modification induced by cutti...
Source: Journal of the Mechanical Behavior of Biomedical Materials - July 7, 2023 Category: Materials Science Authors: Andrea Montanino Sanne van Overbeeke Anna Pandolfi Source Type: research
Vector analysis of astigmatism correction after PRK, FS-LASIK, and SMILE for myopic astigmatism
ConclusionsOne-year outcomes revealed that PRK, FS-LASIK, and SMILE were all equally effective in correcting myopic astigmatism. However, FS-LASIK demonstrated more favorable astigmatism correction in eyes with astigmatism > 1.00D in early postoperatively. (Source: International Ophthalmology)
Source: International Ophthalmology - July 5, 2023 Category: Opthalmology Source Type: research
Transepithelial corneal crosslinking with oxygen enhancement and pulsed light for progressive ectasia: one-year results
ConclusionTE-ACXL with oxygen supplement is effective at halting the progression of corneal ectasia for at least 1 year and can be a refractive neutral procedure. (Source: International Ophthalmology)
Source: International Ophthalmology - June 30, 2023 Category: Opthalmology Source Type: research
Quality of vision after myopic refractive surgeries: SMILE, FS-LASIK, and ICL
To characterize the quality of vision after SMILE, FS-LASIK, and ICL implantation and evaluate the related factors. (Source: BMC Ophthalmology)
Source: BMC Ophthalmology - June 26, 2023 Category: Opthalmology Authors: Huiyi Du, Bo Zhang, Zheng Wang and Lu Xiong Tags: Research Source Type: research
Neurogenic dry eye associated with intravitreal injection of anti-VEGF agents
CONCLUSIONS: Patients with a history of intraocular lens implantation, Nd:YAG laser posterior capsulotomy, and femtosecond laser-assisted laser in situ keratomileusis surgery may have increased drug permeability due to an increased concentration of anti-VEGF drugs in the aqueous layer and thinning of the stromal layer of the cornea. The corneal subepithelial nerve repair mechanism was destroyed, causing neurogenic dry eye.PMID:37350417 | DOI:10.1177/11206721231177475 (Source: European Journal of Ophthalmology)
Source: European Journal of Ophthalmology - June 23, 2023 Category: Opthalmology Authors: Shu-Hua Lin Yu-Hui Fang Fa-Li Jia Ying-Jun Li Source Type: research
Neurogenic dry eye associated with intravitreal injection of anti-VEGF agents
CONCLUSIONS: Patients with a history of intraocular lens implantation, Nd:YAG laser posterior capsulotomy, and femtosecond laser-assisted laser in situ keratomileusis surgery may have increased drug permeability due to an increased concentration of anti-VEGF drugs in the aqueous layer and thinning of the stromal layer of the cornea. The corneal subepithelial nerve repair mechanism was destroyed, causing neurogenic dry eye.PMID:37350417 | DOI:10.1177/11206721231177475 (Source: European Journal of Ophthalmology)
Source: European Journal of Ophthalmology - June 23, 2023 Category: Opthalmology Authors: Shu-Hua Lin Yu-Hui Fang Fa-Li Jia Ying-Jun Li Source Type: research
Neurogenic dry eye associated with intravitreal injection of anti-VEGF agents
CONCLUSIONS: Patients with a history of intraocular lens implantation, Nd:YAG laser posterior capsulotomy, and femtosecond laser-assisted laser in situ keratomileusis surgery may have increased drug permeability due to an increased concentration of anti-VEGF drugs in the aqueous layer and thinning of the stromal layer of the cornea. The corneal subepithelial nerve repair mechanism was destroyed, causing neurogenic dry eye.PMID:37350417 | DOI:10.1177/11206721231177475 (Source: European Journal of Ophthalmology)
Source: European Journal of Ophthalmology - June 23, 2023 Category: Opthalmology Authors: Shu-Hua Lin Yu-Hui Fang Fa-Li Jia Ying-Jun Li Source Type: research
Neurogenic dry eye associated with intravitreal injection of anti-VEGF agents
CONCLUSIONS: Patients with a history of intraocular lens implantation, Nd:YAG laser posterior capsulotomy, and femtosecond laser-assisted laser in situ keratomileusis surgery may have increased drug permeability due to an increased concentration of anti-VEGF drugs in the aqueous layer and thinning of the stromal layer of the cornea. The corneal subepithelial nerve repair mechanism was destroyed, causing neurogenic dry eye.PMID:37350417 | DOI:10.1177/11206721231177475 (Source: European Journal of Ophthalmology)
Source: European Journal of Ophthalmology - June 23, 2023 Category: Opthalmology Authors: Shu-Hua Lin Yu-Hui Fang Fa-Li Jia Ying-Jun Li Source Type: research
Mini Review: Clinical Features and Management of Granular Corneal Dystrophy type 2
Korean J Ophthalmol. 2023 Jun 19. doi: 10.3341/kjo.2023.0032. Online ahead of print.ABSTRACTGranular corneal dystrophy type 2 (GCD2) is an autosomal dominant corneal stromal dystrophy that is caused by p.Arg124His mutation of transforming growth factor beta induced (TGFBI) gene. It is characterized by well demarcated granular shaped opacities in central anterior stroma and as the disease progresses, extrusion of the deposits results in ocular pain due to corneal epithelial erosion. Also, diffuse corneal haze which appears late, causes decrease in visual acuity. The prevalence of GCD2 is high in East Asia including Korea. H...
Source: Korean Journal of Ophthalmology : KJO - June 19, 2023 Category: Opthalmology Authors: Myung Soo Chang Ikhyun Jun Eung Kweon Kim Source Type: research
