How is dioptric power related to focal length?
ADirectly to square of focal length
BInversely to focal length
CDirectly to focal length
DInversely to square of focal length
Rigid gas permeable (RGP) lenses are made from which of the following combinations of materials?
AHydroxymethylmethacrylate
BCellulose acetate Butyrate
CPolymethylmethacrylate
DCopolymer of PMMA, Silicon containing monomer & cellulose acetyl butyrate
Interstitial keratitis is associated with all of the following except:
ASyphilis
BAcanthamoeba
CChlamydia Trachomatis
DHerpes Zoster Virus (HZV)
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