ABO REVIEW STUDY GUIDE WITH SOLUTIONS 2024

ABO REVIEW STUDY GUIDE WITH SOLUTIONS 2024 Sclera - ️️ - Tough, white outer coat of the eyeball myopia - ️️ - nearsightedness; the condition in which parallel rays of light are brought into focus in front of the retina, rather than on it reflection - ️️ - light that bounces back refraction - ️️ - when the direction of light changes as it passes from one medium to another(bending of light) presbyopia - ️️ - Age of 40 need reading glass crystalline lens diminishes frame difference - ️️ - the difference betweeen the horizontal and vertical measurement Ex. 50-45= 5mm MPD - ️️ - mechanical PD in a finished pair of glasses the distance between the optic center measuring PD - ️️ - should sit at 40 cm(16in) from patient average PD for adults - ️️ - 50mm to 75mm diplopia - ️️ - double vision plus lens - ️️ - thick at the center magnify converge FL in front of lens minus lens - ️️ - think at the center minify diverge FL behind of lens astigmatism - ️️ - football shape eye two different powers refractive index - ️️ - N= speed of light in air/ speed of light in material a lens has a front surface power of +2.00D and a back surface power of -8.25. the corrective power is.. - ️️ - +2.00 ( -8.25 = -6.25D a -4.00D lens must be dec