Low Vision Aids Ophthalmic Equipment, UsageApplication Hospital, Operation Mode Manual

Low, Vision devices are intended to improve visual performance in children with low vision, Thus enabling academic and social adaptation and providing enrichment of daily experiences they may serve as optical or optical and electronic. Types of devices optical when conventional lenses do not provide required visual range, Aids that have optical properties capable of promoting better visual performance through lenses are indicated. 2 types of optical aids for distance intermediate distance near optical aids for distance and intermediate distance the telescopic system ts or telescope is an optical instrument that improves the resolution of an object via boosting the measurements of the image projected on the retina, Making it closer. A telescope enables greater participation in daily and social activities such as watching television street signs,, House and building numbers, And reading white boardsbillboards, And menu boards. Types of telescopes galilean or keplerian hand, Held, Spectacle, Mounted, Or clip, On monocular or binocular fixed focus, Or autofocus, Focusable telescope telescopes for distance, Near, And middle distance. Galilean telescope the galilean telescope is an easy-to-use system consisting of 2 lenses objective lens convex closest to, Plus lens the object ocular lens closest to, Minus lens the eye the gap separating the 2 lenses is dictated by the difference in their focal lengths. The image produced is real and erect. Keplerian telescope also identified as astronomical or prismatic, The keplerian telescope is an optical system that uses 2 convex the objective, Plus lenses lens being of smaller diopter power than the ocular. Hand, Held, Spectacle, Mounted, Or clip, On telescope a hand, Held telescope is simpler, Lighter, And cheaper than the galilean and keplerian types. A spectacle, Mounted telescope leaves the hands free. The clip, On model has the benefits of both it is lighter than the spectacle, Mounted model, However, It can scratch the lenses and reduce the visual field to further distances. Monocular or binocular a monocular telescope is indicated when you will find a significant difference in visual acuity va between the 2 eyes. Fixed, Focus, Focusable, Or autofocus telescope a fixed, Focus telescope is indicated for children with poor motor coordination. Nowadays it is rarely prescribed, A focusable telescope reaches far, Near, And intermediate distance and is preferred for and by children. Optical aids for near tasks children, Especially in the preschool age group, Tend not to complain about their difficulty with near tasks. F why to prescribe the prescription of low, Vision devices gives the child independence increased adaptation to the daily activities materials exposure to enriching experiences it constitutes an important factor for socioeconomic and cultural integration. How to prescribe a careful clinical history is important to setting goals based on real expectations. A child who participates in selecting the aid is more likely to learn how to handle it. 1, 2 how to prescribe optical devices determine the best corrected va for near/distance. Determine the va that the patient requires. Calculate the magnification needed to achieve the goal when to prescribe optical aids for near vision are introduced when the decrease in the distance between the item and the eye does not allow the necessary range or at the moment when the accommodative effort is too large.