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Peripheral near vision if distance vision is poor high myopia or decentrated pupil.
Soft contact lens fitting ppt. Soft contact lens fitting 1. Toric lens fitting 780mm 080mm 860mm the bc of the trial lens will be 860mm step 7 you have the sphericalcylindrical power as well as the base curve of the trial lens to be tried on the patient step 8 choose a trial lens as close as possible to spectacle cylindrical axisie 170 degrees 14. Toric lens fitting step 9 suppose the trial lens set with. Nooruz zaman moptom fiacle phd 2.
Introduction to contact lens fitting. A guide and methodology of contact lens fitting aliki kantzou saera university spain corresponding author aliki kantzou saera university the school of advanced education research and accreditation universidad isabel i spain email. Soft contact lens fitting trial lens fitting select trial bvp nearest to vertex corrected spectacle rx result if only 300 d or similar available use appropriate type ie plus or minus if rx high but only low rx trial lenses available consider getting more appropriate trial lenses if large difference between trial and rx remember to correct over rx for vertex distance16. Factors which affects lens fit modulus of elasticity manufacturing method water content keratometric readings lid tonus tear film 3.
Fitting toric soft contact. Fitting spherical soft contact lenses. Kastl corey dickson david w. Fitting spherical rigid gas permeable contact lenses.
Then based on the patients comfort and vision and the slit lamp. Multifocal soft contact lens fitting advice progression system and central optic zone zoc reading zone choice. The first lens is fit empirically. Find maximum convex correction for distance vision.
A soft lens by its very nature of being soft. Majority of the people are using contact lenses for. Lamberts when one considers whether to fit a rigid contact lens or a soft contact lens on a particular patient the main difference as far as the patient is concerned is comfort. Soft contact lens fitting most manufacturers make a specific style lens that varies in only 1 parameter such as a lens that comes in 3 base curves with all other parameters being the same.
Soft toric contact lens ppt. Often the lens chosen is one that the manufacturer reports will fit 80 of patients. Basics of soft contact lens fitting peter r. Material fitting and evaluation 1.
Iclc ppt contact lens fitting contact lens fitting is made up of the 8 following parts. The effects of rgp parameter changes on lens fitting. Prescribing and fitting contact lenses have become an integral part of todays comprehensive ophthalmology practice. Soft contact lens fitting md.
Centre near vision in most cases. Kalaiyarasan contact lens clinic aravind eye hospital madurai paramedical contact lenses are the smallest least visible the finest of all devices for correcting refractive errors of the eye.
