purpose: to report a relatively rare case of familial exudative vitreoretinopathy (fevr). patient and findings: a 13-year-old boy referred with decreased visual acuity of both eyes, specially right eye from 6 years ago. he had several ophthalmologist and optometrist visits and spectacle prescription without any improvement of vision. best corrected visual acuity (bcva) was 25 cm of count finger...

A 75-year-old Caucasian female with a full-thickness macular hole underwent a successful surgical repair. Vision improved from 20/400 to 20/30 after surgery. Two years later, the patient presented with a decreased vision after a fall onto her face with a reopened full-thickness macular hole. Vision decreased to 20/400 and then she underwent a second surgery with an internal limiting membrane pe...

PURPOSE To evaluate the effects of three increasing powers of monovision contact lenses on both objective and subjective vision in emmetropic presbyopic patients. METHODS A prospective single-center study was conducted on 50 emmetropic presbyopic patients with a mean age of 55.4 +/- 4.3 years (range, 50 to 66). Each patient wore for 1 week a +0.75 D, +1.50 D, and +2.50 D contact lens in the n...

Blindness or low vision affects more than 3 million Americans 40 years and older, and this number is projected to reach 5.5 million by 2020. In addition to treating a patient's vision loss and comorbid medical issues, physicians must be aware of the physical limitations and social issues associated with vision loss to optimize health and independent living for the visually impaired patient. In ...

gesture and motion recognition are needed for a variety of applications. the use of human hand motions as a natural interface tool has motivated researchers to conduct research in the modeling, analysis and recognition of various hand movements. in particular, human-computer intelligent interaction has been a focus of research in vision-based gesture recognition. in this work, we introduce a 3-...

acquired color deficiency in the tritan axis in parkinson’s disease has already been reported, manifesting itself as impaired performance in various visual tasks. however, its clinical significance has always been controversial. in this study we evaluated the performance of parkinson s disease patients in lanthony 15-desaturated clinical test and for the first time, compared it with the standar...

Changes in the skin that occur in the elderly may put them at increased risk for altered percutaneous penetration from pharmacotherapy along with potential adverse effects. Skin factors that may have a role in age-related percutaneous penetration include blood flow, pH, skin thickness, hair and pore density, and the content and structure of proteins, glycosaminoglycans (GAGs), water, and lipids...

Corrugator supercilii muscle activity is considered an objective measure of valence because it increases in response to negatively valenced facial expressions (angry) and decreases to positive expressions (happy). The authors sought to determine if corrugator activity could be used as an objective measure of positivity-negativity bias. The authors recorded corrugator responses as participants r...

Desire spurs competition; here we explore whether the converse is also true. In one study, female quartets (N1⁄4 58) completed anagrams, with the winner to receive compact speakers; controls anagrammed without competition. In the other study, female quartets (N1⁄4 74) described their ideal first date to a male judge, who chose the best description; controls read to him others’ date descriptions...