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You can reach Dr Fogla on +91 9866976750 or email  dr_fogla@yahoo.com

Dr Fogla is available in the OPD on all weekdays between 9 to 5 pm,

Appointments are available between 6 and 8pm by prior appointments only
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Cornea Clinic
Tel 91 40 23607777,  Fax 91 40 23608050 ,24 hours emergency services call 1066
Cornea Clinic - Eye Department - Apollo Hospitals, Jubilee Hills, Hyderabad 500 033, A P,  INDIA
Cornea Clinic - toll free number 1600 345 1066, other numbers 91 40 23608333 / 23548888 / 23606655
What is the “Boston Keratoprosthesis”


Boston Keratoprosthesis is an artificial cornea device which can be used in cases with severe corneal disease.
Most cases with corneal disease can be successfully managed with corneal transplantation surgery using corneal
tissue from human donors. However in certain situations routine corneal transplantation is not possible or carries a
greater risk of failure. Boston Keratoprosthesis can be used is such situations, wherein standard corneal
transplant has failed or is unlikely to succeed.


Boston Keratoprosthesis received US FDA approval in 1992, and is currently the most frequently used
keratoprosthesis in United States. This device is made of polymethylmethacrylate (PMMA) which is a clear
biocompatible plastic material with excellent optical properties. It consists of two parts but when fully assembled, it
has the shape of a collar button
  • The device is inserted into a donor corneal tissue,
    which is then sutured to the patient’s cloudy
    cornea.
  • The natural lens is removed and replaced with
    intraocular lens if possible.
  • A contact lens is placed on the eye at the end of
    surgery.
  • Periodic follow up visits are essential, and topical
    medications need to be continued for long term.


Indications that a patient is suitable for the Boston Keratoprosthesis include

  • One or two failed corneal grafts, with poor prognosis for further grafting

  • Vision less than 3/60 (20/400) in the affected eye & additionally with lower than optimal vision in the fellow eye

  • No end stage glaucoma or retinal detachment

Prior to surgery, a detailed history will be taken which helps to assess the corneal condition and determine if the patient
is a good candidate for the surgery.

The one step surgery is relatively simple. General anesthesia is recommended. The device is incorporated into the
corneal graft, which is then sutured into the patient’s cornea like a standard graft. Visual improvement is usually already
seen the following day.


The Boston Keratoprosthesis is known for long term stability and safety. Its optical system can provide excellent vision if
the rest of the eye is undamaged.
Ms Gita, suffered chemical injury for which
normal corneal transplant had failed. Vision
restored to 6/12 with Boston Keratoprosthesis
Mr Kishore, had Stevens Johnson syndrome.
Bilaterally affected. Routine corneal graft
failed to restore eyesight. Vision restored to
5/60 enabling him to move around
independently  with Boston Keratoprosthesis
Mr Jayanth, had acid burn in both eyes. One
eyed patient, routine corneal graft was not
recommended due to limbal stem cell
deficiency. Vision restored to 6/9 with Boston
Keratoprosthesis
Mr Sumith, one eyed patient, had multiple  
corneal graft surgery which failed. Vision
restored to 6/18 with Boston Keratoprosthesis
Dr Rajesh Fogla, with Prof Claes Dohlman at the Massachusetts Eye
and Ear Infirmary, Boston, USA.

Prof Dohlman has worked hard to develop this keratoprosthesis, and
it is only because of his hard work that we are able to use this device
to restore eyesight in patients with severe corneal disease.