Decoding Your Astigmatic Prescription made easy

WELCOME TO INSIGHT OPTHALAMOLOGY !! The refractive power of the astigmatic eye varies in different meridians. The image is formed as a Sturm's conoid.If the principal meridians are at 90° to each other, this is called regular astigmatism. If the principal meridians are at 90° to each other but do not lie at or near 90° and 180°, the term oblique astigmatism is used. If the principal meridians are not at 90° to each other, this is called irregular astigmatism and cannot be corrected by spectacles. Compound hypermetropic astigmatism – rays in all meridians come to a focus behind the retina Simple hypermetropic astigmatism – rays in one meridian focus on the retina, the other focus lies behind the retina. Mixed astigmatism – one line focus lies in front of the retina, the other behind the retina. Simple myopic astigmatism – one line focus lies on the retina, the other focus lies in front of the retina. The video gives tips and tricks on how to read and astigmatic prescription and how to correctly understand an astigmatic prescription. LINKS ASTIGMATISM TYPES MADE EASY :    • ASTIGMATISM || REGULAR ASTIGMATISM || with...   Thank you for joining and watching our videos. This channel is run and managed by Dr Amrit Sahil Panjwani( MBBS, MS ophthalmology) #ophthalmology #optometry #refraction