The visual impact of higher-order aberrations in patients with pediatric blepharokeratoconjunctivitis
ConclusionsThere was a significant increase in total HOAs of eyes with PBKC compared to healthy controls. Corneal opacity, vascularization, and scarring are associated with increased HOAs. The PBKC eye aberration profile: coma, secondary astigmatism, quadrafoil, and pentafoil, were associated with decreased CDVA and visual quality (PSF and MTF). (Source: International Ophthalmology)
Source: International Ophthalmology - February 12, 2024 Category: Opthalmology Source Type: research
Oculocutaneous albinism type 4: Novel compound heterozygous mutations in the SLC45A2 gene in a Chinese case
ConclusionWe firstly reported this case of OCA4 with the compound heterozygous variants in theSLC45A2 gene. Our findings further enrich the reservoir ofSLC45A2 mutations in OCA4. (Source: Molecular Genetics & Genomic Medicine)
Source: Molecular Genetics & Genomic Medicine - February 10, 2024 Category: Genetics & Stem Cells Authors: Danyue He,
Xiaonan Liu,
Tianyu Yao,
Jie Hu,
Xiaodong Zheng,
Lili Tang,
Xing Fan Tags: CLINICAL REPORT Source Type: research
Refractive outcomes of small lenticule extraction (SMILE) Pro ® with a 2 MHz femtosecond laser
ConclusionThe SMILE Pro ® is a safe, efficient, and predictable procedure for the treatment of myopia and myopic astigmatism, with comparable results of conventional SMILE surgery. High myopic eyes achieve better results than low and moderate myopia. No complications were recorded in our patients. (Source: International Ophthalmology)
Source: International Ophthalmology - February 10, 2024 Category: Opthalmology Source Type: research
Determination of the toric axis by using internal astigmatism axis in non-dilated eyes
ConclusionsIn eyes with toric IOL implantation, the IOL axis and IOL rotation according to target IOL axis can be detected easily and effectively in a short time by OPD scan internal astigmatism axis without the need to dilate the pupil. (Source: International Ophthalmology)
Source: International Ophthalmology - February 9, 2024 Category: Opthalmology Source Type: research
Corneal tomography changes following major (6 mm) medial rectus muscle recession: a prospective cohort study using Pentacam ®
DISCUSSION: The changes in total astigmatism of the operated eyes are mainly attributed to the anterior corneal surface. These changes are associated with flattening in the 180 meridian of the cornea, leading to a shift to "with-the-rule" astigmatism.PMID:38311603 | DOI:10.1080/09273972.2024.2311094 (Source: Strabismus)
Source: Strabismus - February 4, 2024 Category: Research Authors: Konstantinos Paraskevopoulos Christina Karakosta Georgios Feretzakis Maria Liaskou Dimitra Kafetsouli Anna Kokolaki Konstantinos Droutsas Dimitrios Papakonstantinou Ilias Georgalas Source Type: research
Evaluation of early period changes in intraocular pressure, ocular biometry and anterior segment after upper eyelid blepharoplasty
ConclusionThis study includes important insights into the potential acute phase impact of blepharoplasty surgery on ocular findings. Patients undergoing upper eyelid surgery should be informed about the possible change in ocular biometric parameters, intraocular pressure, and pupil diameter. (Source: International Ophthalmology)
Source: International Ophthalmology - February 3, 2024 Category: Opthalmology Source Type: research
Long-Term Visual Quality and Pupil Changes after Small-Incision Lenticule Extraction for Eyes without Preoperative Cylinder Refraction
CONCLUSION: Slight cylinder regression was observed with thicker corneal lenticular extraction after SMILE correction of nonastigmatic eyes 30 months postoperatively. This regression was mainly because of the axis changes in anterior corneal astigmatism power. Therefore, a cylinder nomogram modification of 0.25 to 0.50 D is considerable for correcting nonastigmatic myopic eyes with a predicted spherical lenticular thickness over 100 µm.PMID:38282962 | PMC:PMC10821807 | DOI:10.1155/2024/8835585 (Source: Journal of Ophthalmology)
Source: Journal of Ophthalmology - January 29, 2024 Category: Opthalmology Authors: Xiaonan Yang Qiting Feng Quan Liu Jianhui Chen Pengxia Wan Source Type: research
Topographic and surgical risk factors for high postoperative residual astigmatism after small incision lenticule extraction in patients with different degrees of myopia: a retrospective cohort study
To evaluate the possible topographic and surgical risk factors for high postoperative residual astigmatism in patients who undergo small-incision lenticule extraction (SMILE) surgery and have different myopia ... (Source: BMC Ophthalmology)
Source: BMC Ophthalmology - January 29, 2024 Category: Opthalmology Authors: Chia-Yi Lee, Jen-Hsiang Shen, Chen-Cheng Chao, Ie-Bin Lian, Jing-Yang Huang, Shun-Fa Yang and Chao-Kai Chang Tags: Research Source Type: research
Improving early detection of keratoconus by Non Contact Tonometry. A computational study and new biomarkers proposal
This study explores the mechanical properties of keratoconic corneas through numerical simulations of non-contact tonometry (NCT) reproducing the clinical test of the Corvis ST device. Three sensitivity analyses were conducted to assess the impact of corneal material properties, size, and location of the pathological area on NCT results. Additionally, novel asymmetry-based indices were proposed to better characterize corneal deformations and improve the diagnosis of keratoconus. Our results show that the weakening of corneal material properties leads to increased deformation amplitude and altered biomechanical response. Fu...
Source: Journal of the Mechanical Behavior of Biomedical Materials - January 28, 2024 Category: Materials Science Authors: Elena Redaelli Michael Nana Bego ña Calvo Jos é Félix Rodríguez Matas Giulia Luraghi Jos Rozema Jorge Grasa Source Type: research
The comparison of corneal higher-order aberration and surgically induced astigmatism between the clear corneal incision and the limbus tunnel incision of posterior chamber implantable collamer lens implantation
This study aimed to compare the corneal high-order aberrations and surgically induced astigmatism between the clear corneal incision and limbus tunnel incision for posterior chamber implantable collamer lens (... (Source: BMC Ophthalmology)
Source: BMC Ophthalmology - January 25, 2024 Category: Opthalmology Authors: Ting-Ting Dan, Tai-Xiang Liu, Hong-yang Luo, Yi-Lu Liao and Zong-Ze Li Tags: Research Source Type: research
Clinical Outcomes of Femtosecond Laser-assisted Implantation of 325-Degree Versus 340-Degree Arc Length Intracorneal Ring Segments in Naive Keratoconic Eyes
CONCLUSION: Both the 325-degree ICRS and the 340-degree ICRS effectively and equally improved visual, refractive, and keratometric outcomes in keratoconic eyes.PMID:38250234 | PMC:PMC10794807 | DOI:10.18502/jovr.v18i4.14545 (Source: Journal of Ophthalmic and Vision Research)
Source: Journal of Ophthalmic and Vision Research - January 22, 2024 Category: Opthalmology Authors: Amir Faramarzi Kiana Hassanpour Marjan Mazouchi Bahram Einollahi Sepehr Feizi Hamed Esfandiari Mohammad-Mehdi Sadoughi Majid Moshirfar Source Type: research
Agreement Between Swept-source Optical Coherence Tomography and Rotating Scheimpflug Camera in Measurement of Corneal Parameters in Normal and Keratoconic Eyes
CONCLUSION: Although the devices had different mean indices values, they had a good agreement based on the Bland-Altman plots. Since Pentacam is accepted as the standard tool for diagnosing ectatic cornea, pentacam CASIA2 is also helpful for early diagnosis of KCN.PMID:38250237 | PMC:PMC10794808 | DOI:10.18502/jovr.v18i4.14547 (Source: Journal of Ophthalmic and Vision Research)
Source: Journal of Ophthalmic and Vision Research - January 22, 2024 Category: Opthalmology Authors: Hamed Ghassemi Mehran Zarei-Ghanavati Mina Khastavan Mehrnaz Atighehchian Abbas Azimi Khorasani Golshan Latifi Source Type: research
Clinical Outcomes of Femtosecond Laser-assisted Implantation of 325-Degree Versus 340-Degree Arc Length Intracorneal Ring Segments in Naive Keratoconic Eyes
CONCLUSION: Both the 325-degree ICRS and the 340-degree ICRS effectively and equally improved visual, refractive, and keratometric outcomes in keratoconic eyes.PMID:38250234 | PMC:PMC10794807 | DOI:10.18502/jovr.v18i4.14545 (Source: Journal of Ophthalmic and Vision Research)
Source: Journal of Ophthalmic and Vision Research - January 22, 2024 Category: Opthalmology Authors: Amir Faramarzi Kiana Hassanpour Marjan Mazouchi Bahram Einollahi Sepehr Feizi Hamed Esfandiari Mohammad-Mehdi Sadoughi Majid Moshirfar Source Type: research
Agreement Between Swept-source Optical Coherence Tomography and Rotating Scheimpflug Camera in Measurement of Corneal Parameters in Normal and Keratoconic Eyes
CONCLUSION: Although the devices had different mean indices values, they had a good agreement based on the Bland-Altman plots. Since Pentacam is accepted as the standard tool for diagnosing ectatic cornea, pentacam CASIA2 is also helpful for early diagnosis of KCN.PMID:38250237 | PMC:PMC10794808 | DOI:10.18502/jovr.v18i4.14547 (Source: Journal of Ophthalmic and Vision Research)
Source: Journal of Ophthalmic and Vision Research - January 22, 2024 Category: Opthalmology Authors: Hamed Ghassemi Mehran Zarei-Ghanavati Mina Khastavan Mehrnaz Atighehchian Abbas Azimi Khorasani Golshan Latifi Source Type: research
