Background: Some post-LASIK patients complain of blurry distance vision months after refractive surgery, despite good corneal healing and negligible refractive error. We postulated that perceiving blur in the absence of refractive error or significant monocular aberrations might result from poor binocular control. Binocular vision testing in a series of such patients revealed convergence proble...

Case Description- An eleven-year-old Golden retriever male dog (dog I) and a four-year-old neutered Toy Terrier (dog II) were referred to Small Animal Clinic. Dog I was suffered from   partial loss of vision and engorgement of episcleral vessels of his right eye and dog II was blind. Intraocular pressure (IOP) of right eye was 37.8 mmHg in dog  I  and 34.5 and 31.6 mmHg in the right and left...

Purpose: Attention Deficit Hyperactivity Disorder (ADHD) is a serious health concern. Not only has ADHD been implicated as factors of academic performance in school children, it has been positively correlated with delinquency and drug use. Likewise, convergence insuf­ ficiency (CI) has been correlated with ADHD. Vision Therapy (VT) has recently been shown to improve both symptoms and clinical o...

some physical attributes of two common types of iranian garlic cloves (white and pink) were identified and compared. a machine vision system was used to determine three di-mensions and both major and minor projected areas of garlic cloves at a moisture content of 42.4% w. b. the geometric mean diameter and sphericity were calculated, as well as the unit mass and volume of cloves were measured. ...

fish larvae have several sensory systems that are functional at or soon after hatching and then are developed further during larval and juvenile stages. this study was conducted to investigate development of the eye in rutilus kutum , based on histological and allometric growth analysis during early developmental stages up to 35 day post hatching with emphasis on retinal morphology. for this pu...

PURPOSE To compare two methods of postoperative dressing regimen: patching vs "instant vision" without patch. DESIGN Prospective randomized clinical trial. METHODS Sixty consecutive hospitalized, nonambulatory patients with cataract surgery under topical anesthesia on both eyes at different days were enrolled prospectively. In randomized order, one eye was patched for the first 24 hours pos...

Recent gene therapy progress has raised the possibility that vision loss caused by inherited retinal degeneration can be slowed or prevented. Unfortunately, patients are not usually diagnosed until enough degeneration has occurred that the deterioration in vision is noticeable. Therefore, effective gene therapy must halt degeneration to stabilize and preserve any remaining vision. Gene therapy ...

PURPOSE To evaluate the changes in the stimulus and response Accommodative Convergence to Accommodation (AC/A) ratio following vision therapy (VT) in Convergence Insufficiency (CI). METHODS Stimulus and response AC/A ratio were measured on twenty five CI participants, pre and post 10 sessions of VT. Stimulus AC/A ratio was measured using the gradient method and response AC/A ratio was calcula...