Biomaterial Database

Clinical experience with the SimulVue soft bifocal contact lens. 1995

J R Bierly, and T G Furgason, and G Litteral, and W S VanMeter

Department of Ophthalmology, University of Kentucky, Lexington 40536, USA.

We fit the SimulVue bifocal contact lens, a soft lens with a simultaneous vision design, in 30 presbyopic patients. The lens has a central near correction surrounded by a concentric peripheral distance correction. Patients were evaluated prior to inclusion in the study and followed for a period of 1 year. The evaluation included visual acuity and contrast sensitivity at both distance and near with and without lenses. In addition, patients completed a questionnaire at the end of the study. At the end of 1 year, 16 of 30 (53%) patients were successfully wearing the contact lenses. Of these, 13 of 16 patients (81%) achieved J2 or better near vision, and 10 of 16 (63%) achieved 20/25 or better distance vision in both eyes. Greater reduction of contrast sensitivity occurred at near, with only 38% of patients (6/16) retaining their normal contrast sensitivity; whereas at distance, 81% of patients (13/16) retained normal contrast sensitivity. Fourteen patients failed to complete the study. The most common reasons cited were poor vision at distance (6/14, 43%), poor vision at near (6/14, 43%), and ghosting of images (4/14, 29%). We believe that the SimulVue contact lens is a viable option for the correction of many presbyopic patients.

UI	MeSH Term	Description	Entries
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011305	Presbyopia	The normal decreasing elasticity of the crystalline lens that leads to loss of accommodation.	Presbyopias
D011795	Surveys and Questionnaires	Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions.	Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response
D003263	Contact Lenses, Hydrophilic	Soft, supple contact lenses made of plastic polymers which interact readily with water molecules. Many types are available, including continuous and extended-wear versions, which are gas-permeable and easily sterilized.	Lenses, Contact, Hydrophilic,Soft Contact Lenses,Hydrophilic Contact Lens,Soft Contact Lens,Contact Lens, Hydrophilic,Contact Lens, Soft,Contact Lenses, Soft,Hydrophilic Contact Lenses,Lens, Hydrophilic Contact,Lens, Soft Contact,Lenses, Hydrophilic Contact,Lenses, Soft Contact
D005139	Eyeglasses	A pair of ophthalmic lenses in a frame or mounting which is supported by the nose and ears. The purpose is to aid or improve vision. It does not include goggles or nonprescription sun glasses for which EYE PROTECTIVE DEVICES is available.	Glasses,Spectacles,Sun Glasses, Prescription,Glasses, Prescription Sun,Prescription Sun Glasses
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D014785	Vision, Ocular	The process in which light signals are transformed by the PHOTORECEPTOR CELLS into electrical signals which can then be transmitted to the brain.	Vision,Light Signal Transduction, Visual,Ocular Vision,Visual Light Signal Transduction,Visual Phototransduction,Visual Transduction,Phototransduction, Visual,Transduction, Visual
D014792	Visual Acuity	Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.	Acuities, Visual,Acuity, Visual,Visual Acuities