Results 71 to 80 of about 12,156 (169)

Vector analysis of corneal astigmatism in cataractous eyes based on IOLMaster 700 biometry.

PLoS ONE
PurposeThe purpose of this study was to investigate the effect of the corneal back surface by comparing the keratometric astigmatism (K, derived from the corneal front surface) of a modern optical biometer against astigmatism of Total Keratometry (TK ...
Achim Langenbucher, Jascha Wendelstein, Alan Cayless, Peter Hoffmann, Nóra Szentmáry   +4 more
doaj   +1 more source

Prevalence of Astigmatism in Patients Undergoing Cataract Surgery at a Tertiary Care Center in North India

Clinical Ophthalmology, 2021
Anuj Sharma, Sonia Phulke, Anugya Agrawal, Isha Kapoor, Rakesh Kumar Bansal Department of Ophthalmology, Government Medical College and Hospital (GMCH-32), Sector 32, Chandigarh, 160030, IndiaCorrespondence: Sonia PhulkeDepartment of Ophthalmology ...
Sharma A, Phulke S, Agrawal A, Kapoor I, Bansal RK   +4 more
doaj  

Comparison of the accuracy of toric IOL power in cataract eyes with irregular astigmatism using two keratometry devices

BMC Ophthalmology
Background To compare the accuracy of toric intraocular lens (IOL) calculation using simulated keratometry (SimK) obtained from two different devices in cataract eyes with central or paracentral preoperative corneal irregular astigmatism.
Yinuo Huang, Min Hou, Yujie Ding, Liangping Liu, Ao Sun, Si Li, Mingxing Wu   +6 more
doaj   +1 more source

The effects of lower eyelid epiblepharon surgery on the meibomian glands

BMC Ophthalmology
Background To investigate the morphological and functional changes of meibomian glands (MG) in pediatric patients who underwent surgery for lower eyelid epiblepharon. Methods A total of 176 eyes of 88 patients aged 19 and under (mean age: 8.9 ± 2.8 years
Seongmi Kim, Da Eun Yoon, Hyun Sun Jeon, Namju Kim   +3 more
doaj   +1 more source

Repeatability of total Keratometry and standard Keratometry by the IOLMaster 700 and comparison to total corneal astigmatism by Scheimpflug imaging. [PDF]

Eye (Lond), 2021
Savini G, Taroni L, Schiano-Lomoriello D, Hoffer KJ.   +3 more
europepmc   +1 more source

Total Corneal Astigmatism Measurement

Investigative Opthalmology & Visual Science, 2015
Virgilio, Galvis, Alejandro, Tello, Camilo A, Niño, Maria Margarita, Parra   +3 more
openaire   +2 more sources

Clinical study on rigid gas-permeable contact lenses for controlling the progression of astigmatism in children

Xin yixue
ObjectiveTo investigate the effects of rigid gas-permeable contact lenses (RGP) and spectacle glasses on astigmatism progression in children with compound myopic astigmatism. MethodsA prospective cohort study was conducted.
Juan LI, Jiaqi LUO, Jin ZENG, Cheng YANG, Tingting YANG, Jianqing LAN   +5 more
doaj   +1 more source

The effect of pterygium on front and back corneal astigmatism and aberrations in natural-light and low-light conditions

BMC Ophthalmology
Background To investigate the effect of different sizes of pterygium on the front and back corneal topography, refractive changes and aberrations in natural-light and low-light conditions.
Weiwei Xu, Xia Li
doaj   +1 more source

Efficacy of image-guided accurate limbal relaxing incisions for astigmatism correction during cataract surgery

Advances in Ophthalmology Practice and Research
Purpose: To investigate the efficacy of image-guided accurate limbal relaxing incisions (LRIs) for astigmatism correction during cataract surgery.
Xiaoxin Hu, Jiao Qi, Kaiwen Cheng, Wenwen He, Yu Du, Keke Zhang, Yi Lu, Xiangjia Zhu   +7 more
doaj   +1 more source

Total Corneal Astigmatism Measurement Precision

Investigative Opthalmology & Visual Science, 2015
Virgilio, Galvis, Alejandro, Tello, Camilo A, Niño, Maria Margarita, Parra   +3 more
openaire   +2 more sources