Hammad Tariq

hammad isra university optometry aphakia no lens ethics autonomy non-maleficence beneficence basic principles medical ethics madiroy optometrist antibiotics tariq animicrobials resistance classification student use crossresistance students anti misuse definition bending of light reflection properties of light properties light crystalline lens presbyopia without lens pseudophakia education iol eye intraocular lens health congential islamabad university isra iol implantation