Prevention of UV-Induced Damage to the Anterior Segment Using Class I UV-Absorbing Hydrogel Contact Lenses

2010 ◽  
Vol 51 (1) ◽  
pp. 172 ◽  
Author(s):  
Heather L. Chandler ◽  
Kathleen S. Reuter ◽  
Loraine T. Sinnott ◽  
Jason J. Nichols
Keyword(s):  
Contact Lenses ◽  
Anterior Segment ◽  
Class I

scholarly journals Applications of Hyaluronic Acid in Ophthalmology and Contact Lenses

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2485
Author(s):  
Wan-Hsin Chang ◽  
Pei-Yi Liu ◽  
Min-Hsuan Lin ◽  
Chien-Ju Lu ◽  
Hsuan-Yi Chou ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Dry Eye ◽  
Water Retention ◽  
Contact Lenses ◽  
Anterior Segment ◽  
Vitreous Body ◽  
Material Surface ◽  
Connective Tissues ◽  
Water Retention Properties ◽  
Bull's Eye

Hyaluronic acid (HA) is a glycosaminoglycan that was first isolated and identified from the vitreous body of a bull’s eye. HA is ubiquitous in the soft connective tissues of animals and therefore has high tissue compatibility for use in medication. Because of HA’s biological safety and water retention properties, it has many ophthalmology-related applications, such as in intravitreal injection, dry eye treatment, and contact lenses. Due to its broad range of applications, the identification and quantification of HA is a critical topic. This review article discusses current methods for analyzing HA. Contact lenses have become a widely used medical device, with HA commonly used as an additive to their production material, surface coating, and multipurpose solution. HA molecules on contact lenses retain moisture and increase the wearer’s comfort. HA absorbed by contact lenses can also gradually release to the anterior segment of the eyes to treat dry eye. This review discusses applications of HA in ophthalmology.

scholarly journals Orthodontic Management of A Girl With Class Ii Div-2 Malocclusion With Deep Bite & Crowding: A Case Report

2016 ◽  
pp. 29-34
Author(s):  
Shamima Nargish ◽  
Md Zakir Hossain
Keyword(s):  
Case Report ◽  
Anterior Segment ◽  
Class Ii ◽  
Class I ◽  
Deep Bite ◽  
Canine Retraction ◽  
Fixed Appliances ◽  
Leveling And Alignment

We describe the treatment of a girl, age 18 years with Class II div-2 malocclusion with deep bite and crowding. Treatment consisted mainly of bite opening, 1st premolars extractions, canine retraction, arch co-ordination, leveling and alignment with Edgewise fixed appliances by multiloop technique. However the treatment resulted in Class I incisor relation with proper alignment of upper and lower anterior segment, an ideal overjet, overbite and incisor angulations. Ban J Orthod & Dentofac Orthop, April 2016; Vol-6 (1-2), P.29-34

scholarly journals A Review of Limbal Stem Cell Deficiency

2019 ◽  
Vol 2 (1) ◽  
pp. e4-e11
Author(s):  
John E. Conto
Keyword(s):  
Stem Cell ◽  
Contact Lenses ◽  
Systemic Disease ◽  
Anterior Segment ◽  
Treatment Strategies ◽  
Limbal Stem Cell Deficiency ◽  
Contact Lens Wear ◽  
Limbal Stem Cell Transplantation ◽  
Limbal Stem Cell ◽  
Amniotic Membranes

Limbal stem cell deficiency (LSCD) can be secondary to multiple etiologies including contact lens wear, chemical or thermal trauma, and systemic disease, any of which can result in the reduction of the number of stem cells or their decreased functionality. Primary LSCD is seen with a variety of congenital anterior segment disorders. Often LSCD can be stabilized and timely diagnosis is the key. The use of topical corticosteroids and artificial tear lubricants, along with treatment of any underlying conditions, and discontinuation of contact lenses are important initial treatment strategies. Advance treatments include amniotic membranes, limbal stem cell transplantation and keratoprostheses.

Antibacterial therapy of infectious eye diseases

2021 ◽  
pp. 38-40
Author(s):  
A. E. Babushkin ◽  
◽  
G. R. Saitova ◽  
E. N. Matyukhina ◽  
◽  
...  
Keyword(s):  
Foreign Bodies ◽  
Contact Lenses ◽  
Combined Treatment ◽  
Anterior Segment ◽  
Clinical Effectiveness ◽  
Eye Diseases ◽  
Eye Drops ◽  
Bacterial Keratitis ◽  
Good Tolerability ◽  
Combined Use

The aim of the work was to study the clinical effectiveness of the combined treatment of keratitis and keratoconjunctivitis of bacterial etiology with the combined use of ocomistin eye drops and oftocipro ointment. These drugs were used in complex therapy in 12 patients in the treatment of this ophthalmopathology, which was caused corneal microtrauma after ingestion of foreign bodies or wearing contact lenses. At the same time, in most cases, microflora in the form of staphylococci was detected. Observations of the effectiveness of such a combined treatment for infectious and bacterial lesions of the eye anterior segment showed good tolerability and high (in 11 patients, in 91.7% of cases) clinical effectiveness of this therapy. Key words: bacterial keratitis and keratoconjunctivitis, treatment, antiseptic-okomistin, antibiotic-ciprofloxacin ointment.

scholarly journals Orthodontic management of a young girl with Class I malocclusion with crowding and lock bite: A case report

2016 ◽  
pp. 35-41
Author(s):  
SM Omar Faruk ◽  
MZ Hossain
Keyword(s):  
Case Report ◽  
Anterior Segment ◽  
Young Girl ◽  
Class I ◽  
Coil Spring ◽  
Anterior Crowding

We describe the treatment of a young girl age, 18 years, with Class I malocclusion with anterior crowding and lock bite of two upper lateral incisors. The patient was treated by opening of space for lateral incisors with open coil spring with standard edgewise technique. The treatment resulted in Class I molar relation with proper alignment of both upper and lower anterior segment, an ideal overjet, overbite and incisor angulations. Ban J Orthod & Dentofac Orthop, April 2016; Vol-6 (1-2), P.35-41

scholarly journals Impact of Rigid Gas Permeable Contact Lenses Removal on Anterior and Posterior Corneal Surfaces in Keratoconus Patients

2019 ◽  
Author(s):  
Motohiro Itoi ◽  
Koji Kitazawa ◽  
Hisayo Higashihara ◽  
Chie Sotozono
Keyword(s):  
Contact Lens ◽  
Contact Lenses ◽  
Corneal Thickness ◽  
Anterior Segment ◽  
Corneal Surface ◽  
Contact Lens Wear ◽  
Surface Areas ◽  
The Impact ◽  
Lens Wear ◽  
Anterior Posterior

AbstractPurposeTo evaluate the impact of removal of rigid gas-permeable (RGP) contact lenses on the anterior and posterior cornea surfaces of eyes with keratoconus.MethodsEight eyes of 8 patients with keratoconus (KC) (age 34.3 ± 15.3 years; range 19–60 years) were enrolled. Anterior segment optical coherence tomography (AS-OCT) was performed at 1, 5, 10, 20, and 60 minutes after the patients removed their RGP contact lenses. Measurements included anterior and posterior best-fit sphere (BFS); elevation values and corneal surface areas; corneal thickness at the thinnest point; and the anterior-posterior ratio of the corneal surface (As/Ps) between 1 minute and 60 minutes after RGP contact lens removal.ResultsAnterior and posterior elevation values and corneal surface areas showed significant increases, whereas anterior and posterior BFS and central corneal thickness decreased significantly (P < 0.01) between 1 minute and 60 minutes after RGP contact lens removal. No statistically significant differences were found in the As/Ps ratio during the first hour after suspending RGP contact lens wear.ConclusionsWe found that the patients with keratoconus experienced significant changes in both the anterior and posterior corneal shape for 60 minutes after removal of RGP contact lenses.

scholarly journals Reverse Geometry Hybrid Contact Lens Fitting in a Case of Donor-Host Misalignment after Keratoplasty

2013 ◽  
Vol 2 (2) ◽  
pp. 69-72
Author(s):  
Rafael J Pérez-Cambrodí ◽  
Pedro Ruiz-Fortes
Keyword(s):  
Visual Acuity ◽  
Contact Lens ◽  
Contact Lenses ◽  
Anterior Segment ◽  
Successful Outcome ◽  
Imaging Evaluation ◽  
Visual Rehabilitation ◽  
Distance Visual Acuity ◽  
Fitting In ◽  
Contact Lens Fitting

ABSTRACT Purpose To report the successful outcome obtained after fitting a new hybrid contact lens in a cornea with an area of donor-host misalignment and significant levels of irregular astigmatism after penetrating keratoplasty (PKP). Materials and methods A 41-year-old female with bilateral asymmetric keratoconus underwent PKP in her left eye due to the advanced status of the disease. One year after surgery, the patient referred a poor visual acuity and quality in this eye. The fitting of different types of rigid gas permeable contact lenses was performed, but with an unsuccessful outcome due to contact lens stability problems and uncomfortable wear. Scheimpflug imaging evaluation revealed that a donor-host misalignment was present at the nasal area. Contact lens fitting with a reverse geometry hybrid contact lens (Clearkone, SynergEyes Carlsbad) was then fitted. Visual, refractive, and ocular aberrometric outcomes were evaluated during a 1-year period after the fitting. Results Uncorrected distance visual acuity improved from a prefitting value of 20/200 to a best corrected postfitting value of 20/20. Prefitting manifest refraction was +5.00 sphere and .5.50 cylinder at 75°, with a corrected distance visual acuity of 20/30. Higher order root mean square (RMS) for a 5 mm pupil changed from a prefitting value of 6.83 μm to a postfitting value of 1.57 μm (5 mm pupil). The contact lens wearing was referred as comfortable, with no anterior segment alterations. Conclusion The SynergEyes Clearkone contact lens seems to be another potentially useful option for the visual rehabilitation after PKP, especially in cases of donor-host misalignment. How to cite this article Pérez-Cambrodí RJ, Ruiz-Fortes P, Llorens DPP. Reverse Geometry Hybrid Contact Lens Fitting in a Case of Donor-Host Misalignment after Keratoplasty. Int J Kerat Ect Cor Dis 2013;2(2):69-72.

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