scholarly journals Monocular Diplopia: An Optical Correction Modality

2021 ◽  
pp. 501-506
Author(s):  
Haile W. Alemu ◽  
Preetam Kumar
Keyword(s):  
Contact Lens ◽  
Ocular Injury ◽  
Double Vision ◽  
Management Options ◽  
Soft Contact ◽  
Soft Contact Lens ◽  
Single Vision ◽  
Binocular Single Vision ◽  
The Right ◽  
Spectacle Correction

Post-surgical or traumatic corectopia is among the rare causes of monocular diplopia. A 26-years-old student presented to the Institute with a complaint of monocular double vision in the left eye. He had a penetrating ocular injury in the left eye and subsequently, undergone for multiple ocular surgeries. Following the final intraocular lens implantation, he experienced a monocular double vision in his left eye. Upon contact lens clinic presentation, visual acuities were 20/20 in the right and 20/320 in the left eye (improved to 20/25 with pinhole). Slit-lamp examination on the left eye revealed scarring in the superior nasal quadrant of the cornea, irregular mid-dilated pupil with exposed aphakic and pseudophakic portions. A range of different optical management options were implemented to eliminate monocular diplopia and to correct refractive error. Finally, a combination of prosthetic soft contact lens and spectacle correction was able to remove diplopia and provide binocular single vision.

scholarly journals The impact of wearing single vision soft contact lenses on the peripheral refractive error

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 2803
Author(s):  
Kareem Allinjawi ◽  
Sharanjeet-Kaur Sharanjeet-Kaur ◽  
Saadah Mohamed Akhir ◽  
Haliza Abdul Mutalib
Keyword(s):  
Visual Field ◽  
Open Field ◽  
Refractive Error ◽  
Contact Lens ◽  
Contact Lenses ◽  
Soft Contact ◽  
Soft Contact Lenses ◽  
Single Vision ◽  
The Right ◽  
The Impact

Aim: The purpose of this study was to determine the changes in the relative peripheral refractive error produced by soft single vision contact lenses in myopic schoolchildren. Methods: 27 myopic schoolchildren aged between 13 to 15 years were included in this study. The measurements of central and peripheral refraction were made only on the right eye using a Grand-Seiko WR-5100K open-field autorefractometer without contact lens (WL), and with wearing single vision contact lens (SVCL). Refractive power was measured at center and horizontal eccentricity between 35° temporal to 35° nasal visual field (in 5° steps). Results: SVCL showed an increase in peripheral hyperopic defocus at the nasal and temporal visual field compare with baseline, but this change was not statistically significant (p=0.129). Conclusion: Wearing single vision soft contact lenses increases the relative peripheral hyperopic defocus in myopic schoolchildren.

scholarly journals Characterization of Soft Contact Lens Fitting Using Ultra-Long Scan Depth Optical Coherence Tomography

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Lele Cui ◽  
Ming Li ◽  
Meixiao Shen ◽  
Fan Lu ◽  
Jianhua Wang
Keyword(s):  
Optical Coherence Tomography ◽  
Contact Lens ◽  
Contact Lenses ◽  
Repeated Measurements ◽  
Optical Coherence ◽  
Soft Contact ◽  
Soft Contact Lenses ◽  
Soft Contact Lens ◽  
Good Repeatability ◽  
The Right

Objectives. To evaluate the centration and movement of soft contact lenses and to verify the repeatability of two repeated measurements of the lens centration and movement using ultra-long scan depth optical coherence tomography (UL-OCT). Methods. A 1-day Acuvue® Define™ lens was tested on both eyes of 10 subjects (5 males and 5 females; mean age, 31.6 years). The centration and blink-induced movement of the contact lens were measured using UL-OCT at 5 min and 30 min after insertion. The measurements were repeated once at each checkpoint. Results. Good repeatability was found in the lens centration and movement between the two repeated measurements at either checkpoint. The values of the lens movement were 0.457 ± 0.248 mm and 0.402 ± 0.229 mm at 5 min and decreased to 0.197 ± 0.065 mm and 0.211 ± 0.110 mm at 30 min after insertion for the right and left eyes, respectively (P<0.05). Conclusions. The custom-built UL-OCT presented good repeatability of centration and movement in Define lenses at 5 min and 30 min after insertion. Most of the lenses were centered temporal and inferior to the cornea during the first 30 min wearing period. Compared with 5 min after insertion, the lens was centered better and exhibited less movement at 30 min.

A Novel Contact-Lens System to Assess Visual Hemispheric Asymmetries

1992 ◽  
Vol 74 (2) ◽  
pp. 567-575 ◽  
Author(s):  
H. Edward Fouty ◽  
Ronald A. Yeo ◽  
Michael W. Otto ◽  
Charles R. Briggs
Keyword(s):  
Contact Lens ◽  
Right Hemisphere ◽  
Visual Stimulation ◽  
Visual Input ◽  
Light Transmittance ◽  
Lens System ◽  
Soft Contact ◽  
Soft Contact Lens ◽  
Visuospatial Tasks ◽  
The Right

A soft contact-lens system for achieving unilateral visual stimulation in a free vision format is described. Initial testing with light transmittance and visual perimetry indicated that the lenses created artificial visual-field deficits. The efficacy of the lenses as a technique for lateralizing visual input was evaluated by examining within-subject differences in performance on two visuospatial tasks. Speed and accuracy of performance were greater with visual input directed to the right hemisphere. These data support the lens design as a useful alternative to tachistoscopic procedures and previous lens systems.

scholarly journals Quality of Vision with Spectacles, Special Silicone Hydrogel and Gas Permeable Contact Lenses in Keratoconic Patients

2013 ◽  
Vol 2 (2) ◽  
pp. 56-59 ◽  
Author(s):  
Jose M González-Méijome ◽  
Sofia Claudia Peixoto-de-Matos ◽  
Antonio Queiros ◽  
Jorge M Jorge ◽  
Alberto Diaz-Rey
Keyword(s):  
Visual Acuity ◽  
Contact Lens ◽  
Contact Lenses ◽  
Soft Contact ◽  
Low Contrast ◽  
Silicone Hydrogel ◽  
Soft Contact Lens ◽  
Quality Of Vision ◽  
Spectacle Correction

ABSTRACT Purpose To evaluate optical quality and visual function in keratoconus patients corrected with RGP contact lenses and a novel special design of silicone hydrogel contact lens. Materials and methods Twelve eyes of six patients with keratoconus were enrolled to experience a new soft contact lens (Soft-K) for keratoconus made of a silicone-hydrogel material and the outcomes were compared to the performance with gas permeable lenses and spectacles. The three situations were compared for monocular and binocular high (100%) and low contrast (10%) ETDRS LogMAR visual acuity and contrast sensitivity function (CSF). Results On average, there was an improvement of more than two lines in visual acuity over spectacle correction and this is statistically significant for both gas permeable (GP) and Soft-K lens (p < 0.001). Visual acuity was not significantly different between GP and Soft-K lens for high contrast acuity but was slightly higher with GP lens for low contrast under binocular conditions. Monocular CSF showed a marked improvement with the Soft-K lens and GP, compared to spectacles correction, particularly for medium and high frequencies; conversely. Conclusion Soft-K silicone hydrogel soft contact lens produces a clinical and statistically significant improvement in visual acuity and contrast sensitivity function over spectacle correction. How to cite this article González-Méijome JM, Peixoto-de- Matos SC, Queiros A, Jorge JM, Diaz-Rey A. Quality of Vision with Spectacles, Special Silicone Hydrogel and Gas Permeable Contact Lenses in Keratoconic Patients. Int J Kerat Ect Cor Dis 2013;2(2):56-59.

scholarly journals A Management Dilemma: Infectious Keratitis Associated with Soft Contact Lens Use and Dubious Treatment Compliance

2010 ◽  
Vol 2010 ◽  
pp. 1-3 ◽  
Author(s):  
Konstantinos T. Tsaousis ◽  
Georgios Sakkias ◽  
Nikolaos Kozeis ◽  
Periklis Tahiaos
Keyword(s):  
Serratia Marcescens ◽  
Contact Lens ◽  
Treatment Compliance ◽  
Infectious Keratitis ◽  
Soft Contact ◽  
Soft Contact Lens ◽  
Appropriate Treatment ◽  
The Right ◽  
Lens Material ◽  
Selection Of

Purpose. To present a case of infectious keratitis caused by the microorganism Serratia marcescens in a contact lens user and further to confer on the most advantageous management of comparable situations.Case. After altering the routine that she used for contact lens disinfection, a 24-year-old patient presented with pain and conjunctival redness in both eyes. Slit-lamp examination revealed two infiltrates in the inferior part of the cornea in the right eye and five smaller infiltrates in the superior half of the left cornea. Appropriate treatment, after hospitalization, improved the symptoms while culture of the contact lens material revealed Serratia marcescens as the responsible infectious factor.Conclusion. Enhancing the availability of information with respect to contact lens users and customized analysis regarding treatment for a particular complication could be beneficial in order to reduce the frequency of admission to the eye clinic due to infectious keratitis. In addition, rapid laboratory testing of the infected materials should be a priority for selection of the optimal treatment regimen.

scholarly journals The Relationship of Knowledge Level of Installation and Maintenance with the Successful Use of Soft Contact Lens in Myopia patients

2021 ◽  
Vol 15 (6) ◽  
pp. 1562-1564
Author(s):  
Didik Wahyudi ◽  
J Dahjono ◽  
Untung Suparman
Keyword(s):  
Contact Lens ◽  
Contact Lenses ◽  
Refractive Errors ◽  
Soft Contact ◽  
Cross Sectional ◽  
Soft Contact Lenses ◽  
Soft Contact Lens ◽  
Level Of Knowledge ◽  
The Right ◽  
The Relationship

Background: Refractive errors have occurred in many parts of the world, including in Indonesia, with different types of abnormalities, one of which is myopia which can be corrected with glasses and spherical contact lenses. Aim: To determine the relationship between the level of knowledge of the installation and care of soft contact lenses in myopic patients. Methods: This research method is Cross Sectional at Optik Metro, the number of samples is the total population, the research instrument is a questionnaire, the independent variable of this research is the level of knowledge while the dependent variable is the attitude and behavior of Care and Installation with Successful Use of Contact Lenses. This research has been approved by the Widya Husada STIKES Ethics Commission. Results: The results of the study based on the number of sufferers and the distribution of refractive errors at Optik Metro from March 15-20, 2021, showed that the number of myopia patients who came was 13.0% with the type of treatment using soft contact lenses as much as 2.2%. There is a relationship between knowledge and attitudes of respondents with maintenance and installation behavior with successful use of LK with a significance value of 0.000 (p < 0.05). Conclusion: It was concluded that the toric soft contact lens installation procedure was carried out in the right way by taking into account a good fitting assessment. It is necessary to provide education to increase knowledge and education on Care and Installation of Contact Lenses for all customers. Keywords: Knowledge, Attitude, Soft LK, Myopia

Comparing the microflora of the conjunctiva and contact lens in therapeutic soft contact lens wearers

2020 ◽  
Vol 89 (6) ◽  
pp. 8-13
Author(s):  
T. A Veliksar ◽  
◽  
T. B. Gaidamaka ◽  
G. I. Drozhzhina ◽  
A. L. Molodaia ◽  
...  
Keyword(s):  
Contact Lens ◽  
Soft Contact ◽  
Soft Contact Lens
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