Technology



At Laxmi, we have always been at the forefront of embracing new technologies which increase our accuracy and precision, improve safety, or enhance patient comfort. Let’s take a closer look at some of the sophisticated equipment in our armamentarium.

Once cataract is diagnosed, preoperative tests and evaluation are done to calculate the power as well as determine the appropriate type of the lens to be implanted. This technology of using the appropriate IOL based on individual eye parameters is referred to as Customised Cataract Surgery.

Biometry (IOL power calculation) is done by trained personnel and every effort is made to ensure accurate results. It involves measurement of the eyeball length and corneal power.

  • Pentacam (Oculyzer from Alcon)– This is based on Scheimpflug camera wherein the corneal power is measured at multiple points. These measurements are based on elevation from a reference sphere – a form of elevation-based topography.

    The Pentacam can also accurately measure thickness of the cornea at various locations. This helps in assessing the corneal cylinder (astigmatism) accurately for planning toric IOLs as well as for planning limbal relaxing incisions for correction of astigmatism during surgery.

    The Pentacam helps us to manage complex cases such as patients coming for cataract surgery after having undergone refractive surgery (for example LASIK or PRK) or those with Keratoconus.
  • iTrace – This unique machine works on the principle of ray tracing technology. Visual problems can arise from loss of clarity in 2 important structures in the eye namely cornea and lens. iTrace can quantitatively estimate the visual loss due to each component and can reasonably predict the vision after cataract surgery.

    It can exactly measure the spherical aberration of the eye and helps in the selection of an appropriate aspheric IOL. The iTrace also measures various visual angles of the eye (angle alpha and angle kappa) which are useful in selection of premium IOLs like multifocal, trifocal and toric IOLs.
  • IOL Master – This works on the principle of partial coherence laser interferometry. Here the length of the eye is measured using laser, and hence is extremely accurate for calculating IOL power calculation. All the measurements are taken without touching the patient’s eye. It is an extremely fast machine which can take hundreds of readings within minutes.


Let’s now look at some of the equipment that is used during the cataract surgery.
  • Alcon Infiniti Phaco Machine- This is an advanced Phacoemulsification system, which incorporates conventional longitudinal phaco technology with Ozil technology. In Ozil technology, the tip of the phaco probe moves horizontally as well as longitudinally. This tremendously improves the efficiency of the machine to emulsify the cataract without damaging adjacent eye structures. Advanced fluidics sensors in the machine further increase the safety of the system during surgery.
  • Zeiss Visu 200 Microscope – This is a top-end microscope backed by German engineering and the finest optics from Carl Zeiss. It provides best visualisation of the minute structures inside the eye during surgery.
  • Positive Pressure Ventilation System – The operation theatre is equipped with a positive pressure ventilation system, which prevents contaminated air entering the operation theatre. It is equipped with HEPA filters, which exclude all pathogenic microorganisms which can cause infection.