Dr.POONAM SINGH, S17974
Accurate IOP measurement is mainstay in Glaucoma management as modifiable risk factor. CCT effects also IOP readings. Contact and Noncontact Tonometers are basic two types IOP methods.Aims and Objectives-To measure the accuracy of IOP by Non Contact tonometer compared with Goldman tonometer &To analyse the effect of CCT on IOP measurement Crossectional Observational comparative study for 1 year. 100 patients more than 50 yrs of age.Material and method-NCT was done first .CCT was measured with OCT. Pressure corneal Index ( PCI) was calculated IOP/CCT3 .Results-High IOP between 15-18 mmHg by Non contact tonometer with p value=0.01.Patients with high PC index and normal IOP & normal PCI and High IOP need evaluation Conclusion- NCT gives comparable measurements with GAT in normal range of IOP.At High IOP, NCT readings to be reevaluated Thick corneas may overestimate &Thin corneas may underestimate IOP .NCT is good for Screening but IOP variables need further reevaluation.
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