What is cataract?

When this natural lens becomes opaque (ie loses transparency) it is known as cataract

When does one need to have cataract surgery?

Cataract surgery is advised when

  • There is loss of vision.
  • There is disturbing glare (difficulty in seeing in bright light) or haloes (seeing coloured rings around a light source).
  • The cataract has become too hard, although vision is normal, which is a common situation
  • Difficulty in treating other eye diseases, unless the cataract is removed.


What are the steps of cataract surgery?

Cataract surgery consists of two stages –

  • Cataract removal – Consists of removing the cataract.
  • Intraocular lens (IOL) implantation– Consists of placing the IOL inside the eye

What pre-operative investigations are required before surgery?

At Susrut, the following pre-operative investigations are advised

  • Biometry – To determine the power of intraocular lens (IOL).
  • Specular microscopy – To determine the health of the cornea.
  • Syringing – To check the patency of the passage between the eye and nose.
  • Corneal topography – To detect corneal aberrations if you are considering toric or multifocal IOLs.
  • OCT (optical coherence tomography) – To detect retina abnormalities in patients with suspected retinal problems.
  • USG – To detect structural (not functional) condition of retina in patients with very advanced cataracts.
  • RAM – to predict the vision after surgery (not possible for very advanced cataracts).
  • Blood pressure.
  • ECG.
  • Blood glucose (both fasting and post-prandial for diabetic patients).
  • Physician clearance – For patients with other health issues (heart disease, breathing trouble, etc).


Specular microscopy

Ultrasound biometry


Optical biometry



What options do I have for cataract removal?

  • 1. Phacoemulsification – Here, the cataract is removed, with the help of ultrasound energy. Before liquefying and sucking the cataract, the steps done manually are (i) entering inside the eye, (ii) opening the anterior capsule (the front layer of the covering of the natural lens), and (iii) breaking the cataract.
  • 2. Femto-second laser assisted cataract surgery (FLACS) – Here, a laser (femtosecond laser) is used (i) to enter inside the eye, (ii) open the anterior capsule and (iii) divide the cataract (instead of doing these steps manually). Then the ultrasound machine, same as in phacoemulsification, is used to liquefy and suck out the cataract. FLACS adds to the accuracy and precision of the procedure.

Phacoemulsification in progress

FLACS (Femtosecond laser assisted cataract surgery)

What options do I have for IOL implantation??

There are multiple options for IOL –

  • 1. Monofocal IOL – This corrects distance vision (for those without cylindrical errors). Spectacles are needed for near (i.e reading) vision after surgery.
  • 2. Toric IOL – For patients with cylindrical errors, toric IOLs are required to correct distance vision. (Else, i.e with monofocal IOLs, cylindrical spectacles will be needed for distance correction after surgery). Even with toric IOLs, spectacles will be needed for near (reading) vision.
  • 3. Multifocal IOL – In addition to distance vision, this provides near (reading) and/or intermediate (computer/ mobile phone) vision. The types of mutifocal IOL, depending on the distance from the eye it provides vision, are –
  • (i) Bifocal – Corrects distance and near vision.
  • (ii) Trifocal – Corrects distance, intermediate and near vision.
  • (iii) Extended depth of focus – Corrects distance and intermediate vision
  • 4. Multifocal + Toric IOL– For patients with cylindrical errors and desiring distance, as well as near and/or intermediate vision, IOLs with both toric and multifocal properties are required.

Cataract specialists in Susrut

  • Dr. Ratish Chandra Paul

    Dr. Ratish Chandra Paul, Head, Cataract Services


    Secretary, Susrut Eye Foundation and Research Centre

    Specialisation: Cataract & Anterior Segment
    He is one of the most experienced and renowned ‘ophthalmologists in Eastern India. He specializes in refractive cataract surgery and laser assisted cataract surgery. He is the medical director of Vanmukta Eye Bank. He is a faculty in cataract surgery training program at Susrut Eye Foundation and Research Centre.

  • Dr. Arindam Deb

    Dr. Arindam Deb


    Specialization :Cataract and Anterior Segment
    Dr. Arindam Deb completed MBBS and DO from University of Calcutta. He was awarded FRCS (Ophthalmology) from Royal College of Physicians and Surgeons of Glasgow in 2011. He has been working in this organization since 2006 and successfully performing phacoemulsification procedures with the most advanced machines and technologies. He is also attached with several community projects of this hospital.

  • Dr. Alok Agrawal

    Dr. Alok Agrawal

    MBBS, MS,PhD, FMRF (Uvea), FSNEC (Uvea)

    Specialization : Cataract, Medical Retina & Uvea
    Dr. Alok Agrawal graduated in 2003. After his undergraduate degree he went and did a long-term observership in different eye hospitals in USA. He received his postgraduate degree from India in 2008 and Ph.D. in Ophthalmology in 2011. He did his long term fellowship training in Uveitis in 2008 at Sankara Nethralaya, India and later has acquired a wealth of experience in managing patients with a variety of complex ocular inflammatory diseases after doing another International Clinical Fellowship in Ocular Immunology & Inflammation from Singapore National Eye Center, Singapore in 2010. Dr. Alok’s uveitis research interests are mainly in Vogt-Koyanagi Harada disease, cytomegalovirus infection in the immunocompetent patients. Dr. Alok’s another passion is in uveitic cataract surgery.

  • Dr. Amit Budrukkar

    Dr. Amit Budrukkar

    MBBS, DNB, FSEFRC (Glaucoma), FICO

    Specialization :Glaucoma and Cataract
    Dr. Amit Budrukkar has done his MBBS from Maharashtra University of Health Sciences. He has completed his DNB from New Delhi in 2016. He has done his specialization in medical and surgical glaucoma. He has presented papers in national and international conferences.

  • Dr. Anirban Kundu

    Dr. Anirban Kundu

    MBBS , MS

    Specialization :Cataract & Anterior Segment
    Dr.Anirban Kundu completed his MS (Ophthalmology) from RIMS Ranchi & specializes in advanced techniques of cataract surgery and medical retina.

  • Dr. Anuradha Chandra

    Dr. Anuradha Chandra


    Specialization :Cataract, Glaucoma, Paediatric and Squint
    Dr. A. Chandra completed MBBS & MS (Opthalmology) from Medical College Kolkata in 2009. She has completed her Senior Residency in Pediatric Opthalmology, Strabismus & Pediatric Glaucoma from Dr. R. P. Centre for Ophthalmic Sciences, AIIMS, New Delhi in 2012. She has numerous papers dealing with glaucoma, strabismus and neurophthalmology in national & international journals.

  • Dr. Arghya Das

    Dr. Arghya Das

    MBBS, MS, FSEFRC (Cataract)

    Specialization :Cataract
    Dr. Arghya Das completed his MBBS from Bankura Sammilani Medical College in 2013 and MS (Ophthalmology) from Institute of Ophthalmology, Jawaharlal Nehru Medical College, AMU, Aligarh in 2017. He has done long term fellowship in cataract surgery from Susrut Eye Foundation and Research Centre, Kolkata in 2017-18.

  • Dr Abhisek Mondal

    Dr. Abhisek Mondal

    MBBS, MS,FSEFRC (Glaucoma)

    Specialisation: Cataract and Glaucoma
    Dr. Abhisek Mondal has done MBBS in 2010 and MS (Ophthalmology) in 2014 from Banaras Hindu University. He has done long term fellowship in Medical and Surgical Glaucoma from Susrut Eye Foundation & Research Centre in 2017-2018.

  • Dr. Arunava Bandyopadhyay

    Dr. Arunava Bandyopadhyay

    MBBS, MS, FSEFRC (Cataract)

    Specialization :Cataract
    Dr. A. Bandyopadhyay completed his MBBS from Calcutta University in 2002 and MS (Ophthalmology) from Dibrugarh University, Assam. He has done fellowship in cataract surgery from Susrut Eye Foundation & Research Centre.

  • Dr. Debasish Sarkar

    Dr. Debasish Sarkar

    MBBS, MS

    Specialization :Cataract
    Dr. Debasish Sarkar completed his MBBS from Goa Medical College under Bombay University in 1982 and MS (Ophthalmology)) from Regional Institute of Ophthalmology under Calcutta University.

  • Dr. Dhananjay Giri

    Dr. Dhananjay Giri

    MBBS, MS, Fellowship (Glaucoma & Cataract)

    Specialization :Cataract and Glaucoma
    Dr. Dhananjay Giri completed MBBS & MS from Kolkata. He did fellowship in Comprehensive Ophthalmology & Glaucoma from SNC, Chitrakoot (one of the largest surgery centres in India).

  • Dr. Diptesh Das

    Dr. Diptesh Das

    MBBS, DO

    Specialization :Cataract
    Dr. Diptesh Das completed his MBBS from Medical College, Kolkata in 2008 and D.O. from RIO, Medical College, Kolkata.

  • Dr. Doel Biswas

    Dr. Doel Biswas

    MBBS, MS, Fellowship in (Comprehensive Opthalmology)

    Specialization :Cataract & Refractive
    After completing MS, Dr. Biswas did Fellowship in Comprehensive Ophthalmology from SCEH, Delhi. However, her interest and skill lies in refractive surgery namely LASIK & ICL Implantation .

  • Dr. Hari Shanker Nag

    Dr. Hari Shanker Nag


    Specialization :Cataract, Anterior Segment and Glaucoma
    Dr. Hari Shanker Nag completed his MBBS from VSS Medical College (Sambalpur University) and MS from Rajendra Institute of Medical Sciences (Ranchi University). He has done fellowship in IOL Microsurgery and Phacoemulsification from Arvind Eye Hospital, Madurai.

  • Dr. John Sarkar

    Dr. John Sarkar

    MBBS, MS, FMRF (Cornea)

    Specialization :Cataract, Cornea and Refractive Surgery
    Dr. John Sarkar is an expert in the state- of-art cataract surgery with premium (Multifocal and Toric) IOLs. He is also a prolific cornea Transplant Surgeon ( PK, DALK ,DSEK ) having performed more than 1000 procedures and regularly doing C3R and Refractive Surgeries (LASIK). Dr. John Sarkar completed his MBBS from R. G. Kar Medical College and Hospital, Kolkata and DO from RIO , Kolkata followed by MS in Ophthalmology from Assam Medical College, Dibrugarh, Assam. After Completion of MS, he pursued Cornea and Refractive Fellowship from Medical Research Foundation, Sankara Nethralaya, Chennai (2013 -2015). Subsequently he joined as an Associate Consultant (Cornea, Cataract & Refractive Services) in Chennai Sankara Nethralaya followed by SN Kolkata from 2015- 2018. He is member of various national and international Ophthalmological Societies, as of now presented 12 Papers and Posters in various National and International Conferences and won several Awards. During his fellowship he has received Runner up Award for Best Paper Presentation in 2014 from Prestigious Cornea Society of India for his research work “MOOKP- An Over A Decade Experience”. His areas of inerests are sutureless endothelal corneal transplantation(DSEK), refractive Surgery (LASIK) and stem cell research(SLET).

  • Dr. Kousik Sarkar

    Dr. Kousik Sarkar

    MBBS, MS, FSEFRC (Cataract)

    Specialization :Cataract
    Dr. Kousik Sarkar completed his MBBS from Bankura Sammilani Medical College, Bankura, in 2011 & M.S from AMC Dibrugarh in 2017. He has done long term fellowship in cataract surgery from Susrut Eye Foundation & Research Centre.

  • Dr. Kumkum Ghosh

    Dr. Kumkum Ghosh


    Specialization :Cataract, Cornea and Anterior Segment
    Dr. Kumkum Ghosh has done her MBBS and DO from Calcutta University and DNB in Ophthalmology under National Board of Examination (New Delhi). She was awarded FRCS (Ophthalmology) from Royal College of Physicians and Surgeons of Glasgow in 2013. She has been working in this organisation for the past 6 years and successfully performing phacoemulsification procedures with most advanced machines and technologies. She has interest in cornea also and successfully performing keratoplasty and other corneal surgeries.

  • Dr. Madhusudan Mandal

    Dr. Madhusudan Mandal

    MBBS, MS, FSEFRC (Cataract)

    Specialization :Cataract
    Dr. Madhusudan Mandal completed his MBBS from IPGME&R, Kolkata in 2010 and MS (Ophthalmology) from Institute of Ophthalmomology, Jawaharlal Nehru Medical College, AMU, Aligarh in 2016. He has done long term fellowship in cataract surgery from Susrut Eye Foundation and Research Centre, Kolkata in 2017.

  • Dr. Nalinakshi Karan

    Dr. Nalinakshi Karan

    MBBS, DO, DNB, Fellowship (Cornea)

    Specialization :Cataract, Cornea
    Dr. Nalinakshi Karan completed her MBBS from Calcutta University in 2006 and D.O. from RIO Medical College, Kolkata under. She also completed her DNB (Ophthalmology) and Fellowship in Cornea from Sri Shankaradeva Nethralaya, Guwahati in 2016.

  • Dr. Navajoyti Goswami

    Dr. Navajoyti Goswami

    MBBS, MS

    Specialization :Glaucoma, Cataract and Refractive
    Dr.Navajyoti Goswami has done his MBBS from Gauhati University, and MS from Assam University, Silchar in the year 2005.

  • Dr. Nilay Kumar Majumdar

    Dr. Nilay Kumar Majumdar

    MBBS, DO

    Specialization : Glaucoma and Cataract
    Dr. Nilay Kumar Majumdar is the senior glaucoma consultant of Susrut Eye Foundation & Research Centre. He did his MBBS from Calcutta National Medical College & Hospital in 1989 and Diploma in Ophthalmology from Regional Institute of Ophthalmology (RIO), Kolkata in 1993. He has also worked as Research Associate in the ICMR glaucoma project in RIO, Kolkata. He has several papers and presentations at national & international levels. His special interest is in spreading glaucoma awareness as well as in painting.

  • Dr. Rajarshi Chowdhury

    Dr. Rajarshi Chowdhury

    MBBS, MS

    Specialization :Cataract
    Dr. R. Chowdhury completed his MBBS & MS (Ophthalmology) from Assam University, Silchar in 1997 & 2005 respectively.

  • Dr. Rekha Chandra

    Dr. Rekha Chandra

    MBBS, MS

    Specialization :Cataract
    Dr. Rekha Chandra completed her MBBS from Govt. Medical College Jabalpur with certificate of merit in Ophthalmology. She passed her MS from the upgraded Department of Ophthalmology from the same institute. She had a long association with Tata Motors Hospital, Jamshedpur and superannuated as Head of Eye Department. She had skill upgradation training at AIIMS New Delhi, Disha Eye Hospital, Barrackpore, and Susrut Eye Foundation & Research Centre, Kolkata.

  • Dr. Raka Chatterjee

    Dr. Raka Chatterjee

    MBBS, MS, FMRF(Oculoplasty)

    Specialization :Cataract and Oculoplasty
    Dr. Raka Chatterjee did her MBBS from NRS Medical College and her MS (Ophthalmology) from MKCG Medical College. She did a short term fellowship in cataract surgery at LV Prasad Eye Institute, Hyderabad. She did two year long term fellowship at Sankara Nethralaya, Chennai in Orbit, Oculoplasty, Reconstructive and Aeshetic Surgery and cataract surgery. She has papers published in peer reviewed journals and she has authored a few book chapters. Her areas of interest are surgeries involving the eyelids, lacrimal apparatus and orbit in children & adults and ocular aesthetic surgery for enhancing the beauty of the face and eyes and also cataract surgery.

  • Dr. Sayan Das

    Dr. Sayan Das

    MBBS , MS , FRCS

    Specialization :Cornea, Cataract, Anterior Segment and Refractive
    Dr. Sayan Das passed MBBS from Calcutta Medical College (Calcutta University) in 1999. He completed his MS (Ophthalmology) from Post-graduate Institute of Medical Education and Research, Chandigarh in 2002. He was awarded FRCS (Ophthalmology) from Royal College of Physicians and Surgeons of Glasgow in 2007. He has several publications in journals and presentations at state, national and international conferences to his credit.

  • Dr. Vineet Agarwal

    Dr. Vineet Agarwal

    MBBS, DNB, FSEFRC (Cataract)

    Specialization : Cataract and Anterior Segment
    Dr. Vineet Agarwal has passed MBBS from Medical College, Calcutta (Calcutta University) in 2005. He has done his DNB (Ophthalmology) from B.R.Singh Hospital & Centre for Medical Education and Research (Kolkata) in 2012. He has done his fellowship in cataract surgery from Susrut Eye Foundation and Research Centre, Kolkata in 2014. Previously he has worked as a consultant and cataract surgeon in Disha Eye Hospital, Barrackpore. His areas of interest are cataract and general ophthalmology. He has been successfully performing ‘phacoemulsification procedures with the advanced machines and technologies.

  • Dr. Prateep Phadikar

    MBBS, MS

    Specialization :Cataract and Cornea
    Dr. Prateep Phadikar has completed his MBBS from Calcutta National Medical College and then MS Ophthalmology from King George Medical University, Lucknow. He has special interest in cornea transplantation. He is also interested in teaching and research activities. Has published articles in various international journals and has also written book chapters. Has been co-investigator in various clinical drug trials.

  • Dr. Sumit Banerjee

    MBBS, DO, MS

    Specialization :Cataract & Anterior Segment
    Being a member of Medicos 1978, completed House-staffship in 1985, started journey as ophthalmologist after doing Diploma in Ophthalmology in the year 1987. Completed MS in1993. After doing private practice for few years, started “Megha Eye Centre”. Joined hands with “Susrut Eye Hospital and Research Centre”. An anterior segment surgeon with special interest in the segment of glaucoma.

Cataract Services at Susrut

  • Seven state-of the art operation theatres, each with laminar airflow and hepa filters.
  • High end phacoemulsification machines -Centurion (Alcon), Infinity (Alcon), Stellaris (Bausch and Lomb) and Whitestar Signature Pro (Johnson and Johnson)
  • Femtosecond laser machine – LenSx (Alcon).
  • High end microscopes from Leica and Zeiss.
  • Video recording facility for each patient (available on prior demand by patient)
  • Capability to handle all difficult and complicated situations.
  • Efficient cornea and vitreoretinal services to handle all intraoperative and postoperative situations