Original Research Article
Year: 2022 | Month: August | Volume: 12 | Issue: 8 | Pages: 64-70
DOI: https://doi.org/10.52403/ijhsr.20220809
Evaluation of Biometry Parameters of patients from a Tertiary Eye Care Centre
Shib Sankar Roy1, Saptarshi Mukherjee2, Abhishek Sharma3, Thathagata Roy4
1Assistant professor ITM, Raipur, 2Vision Science Academy, 3,4Optometrist Dr Shroff Charity eye hospital
Corresponding Author: Shib Sankar Roy
ABSTRACT
Background: To evaluate the distribution of A- scan Biometry parameters and Corneal Astigmatism before Cataract Surgery in patients from a Tertiary Eye Care Centre.
Methods: Cataract patients were recruited at a Tertiary Eye Care Hospital. Ocular axial length (AL), Lens thickness (LT), keratometry values, anterior chamber depth (ACD) and horizontal corneal diameter (white to white [WTW]) of each cataract-affected eye were measured using the Axis Nano Device (Immersion Technique).
Results: The study evaluated 418 eyes of 209 cataract patients. The mean AL, ACD, and WTW were 23.17±1.81 mm, 3. 25 ± 0.40 mm, and 10.50 ± 0.36 mm, respectively. Corneal astigmatism of 0.71 to 1.00 diopters (D) was the most common range of values. The flat and steep keratometry values both gradually increased with age. The mean ACD and WTW showed increasing trends as the AL increased. When the AL was below 26.0 mm, the keratometry values decreased as AL increased. The against-the-rule (ATR) astigmatism proportion increased with age and the with-the-rule (WTR) astigmatism proportion decreased with age. The Oblique Astigmatism whereas shows gradual decrease in the percentage in-accordance to the age.
Conclusions: In conclusion, our study determined the distribution of ocular biometric parameters and the characteristics of corneal astigmatism as well as their variation among different age groups in Delhi region. The profile of ocular biometric data and corneal astigmatism may help ophthalmologists to achieve better outcome by improving their surgical procedures including appropriate IOL choice and more accurate corneal incision made to gain a high quality of postoperative vision.
Key words: Biometry, Keratometry, Corneal astigmatism, Axial Length, Lens thickness.