Contact lenses and associated anterior segment disorders: dry eye, blepharitis, and allergy

2003 ◽  
Vol 16 (3) ◽  
pp. 463-469 ◽  
Author(s):  
M LEMP
Keyword(s):  
Dry Eye ◽  
Contact Lenses ◽  
Anterior Segment

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.

Ocular manifestations in patients who underwent COVID-19 in the early stages after Phaco surgery with implantation of IOL

2021 ◽  
pp. 80-85
Author(s):  
T.N. Savranova ◽  
◽  
V.U. Rozukulov ◽  
A.F. Yusupov ◽  
◽  
...  
Keyword(s):  
Dry Eye ◽  
Anterior Part ◽  
Anterior Segment ◽  
Early Postoperative Period ◽  
Posterior Segment ◽  
Vascular Pathology ◽  
Ocular Manifestations ◽  
Uveal Tract ◽  
Ocular Symptoms ◽  
Rehabilitation Period

Purpose. To study the ocular manifestations in patients with pseudophakia who underwent COVID-19 during the rehabilitation period after surgery. Material and methods. 46 patients with Phaco with implantation of IOL who underwent COVID-19 in the period from 1 week to 2 months after surgery. Of the examined patients, there were 28 men (61%), 18 women (391%). The average age of the patients was 63±1,2 years. Results. In 78% of cases, vascular pathology of the anterior and posterior segments of the eyeball was observed in patients who underwent COVID-19 in the early postoperative period after Phaco with implantation of IOL. Conclusions. The main ocular symptoms from the anterior segment of the eyeball in patients in 17% of cases were the occurrence or intensification of previously existing manifestations of the «dry eye» syndrome, as well as inflammatory phenomena from the anterior part of the uveal tract. From the posterior segment of the eye, in 70% of cases, there was a progression of vascular disorders, as well as the appearance of complications associated with manifestations of hypercoagulation syndrome and systemic vasculopathy. Key words: Covid-19, cataract phacoemulsification, pseudophakia.

Optimum | Tangible Hydra-PEG™ – Gaining Momentum in the Industry

The Eye ◽  
2021 ◽  
Vol 23 (4) ◽  
pp. 31-34
Author(s):  
M. Conway
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Surface Coating ◽  
Clinical Case ◽  
Contact Lenses ◽  
Ocular Surface Disease ◽  
Corneal Ectasia ◽  
Corneal Lens ◽  
Eye Symptoms ◽  
Dry Eye Symptoms

The issue of hydrophilicity of the surface of gas permeable contact lenses remains one of the persistent problems. Tangible Hydra-PEG™ surface coating is applied to gas permeable contact lenses to significantly improve wettability and wearing comfort. Although it is mainly used to alleviate dry eye symptoms in scleral and corneal lens users, particularly for those patients with corneal ectasia and/or Ocular Surface Disease (OSD), it can be used in other modalities. This article describes the development of the product and describes the benefits of its use in a clinical case.

OKVision ® SMARTFIT™ Scleral Contact Lens Manufacturing Technology

The Eye ◽  
2021 ◽  
Vol 23 (2) ◽  
pp. 47-52
Author(s):  
S. V. Listratov ◽  
N. A. Bakalova ◽  
V. V. Averich
Keyword(s):  
Dry Eye ◽  
Contact Lens ◽  
Conventional Treatment ◽  
Contact Lenses ◽  
Manufacturing Technology ◽  
Eye Diseases ◽  
Dry Eye Syndrome ◽  
Annual Increase ◽  
Treatment Methods

Corneal keratoectasia and dry eye syndrome (DES) are two of the most prevalent eye diseases. A number of studies is being carried out aimed at identifying and analyzing the annual increase in incidence of these diseases in population strata. Treatment and rehabilitation of patients with keratoectasia and DES remain topical issues in modern ophthalmology. Conventional treatment methods are not always effective, and scleral lenses (SCLs) may be considered an alternative. In this article, the authors expand on technology of manufacturing of OKVision® SMARTFIT™ scleral contact lenses.

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 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.

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