Maintenance of Ophthalmic Instruments and Equipment


The quality and efficiency of medical service provided in any hospital depends very much on the proper functioning of the equipment and instruments used by the doctors and other clinical staff. Even under normal and careful use, instruments fail to function properly. The frequency of such failures can be considerably reduced by proper care, maintenance and timely repair. Hence we are providing you with resources which will be help for Care and Maintenance of Ophthalmic Instruments and Equipments.

Objectives of the Training :

  • How to listing and keeping track of all equipment in the hospital.
  • How maintaining adequate stock of essential supplies for instruments (bulbs, fuses, paper rolls etc.).
  • Developing procedures for keeping track of the entire maintenance process (care maintenance and repair) including warranty and maintenance contracts.
  • Maintaining catalogues instruction and service manuals of the instruments. Training the users of instruments on the various Dos and DON’Ts.
  • Trouble shooting and diagnosing the problems in instruments reported to be not working.
  • Rectifying faults that can be handled locally and properly communicating the problem as precisely as possible to the supplier/outside service agency.
  • Planning for maintenance activity in a outreach program site away from the hospital.
  • Skills relating to maintenance of electrical and electronic instruments.
  • Skills relating to maintenance of optical instruments
  • Skills relating to maintenance of mechanical parts of equipment


After obtaining this training trainees would able to perform :

Using multimeter. Identifying components and knowing their characteristics. Soldering and building simple electrical/electronic circuits. Identifying electrical fuses in instruments and understanding their rating. Calculating the power ratings of instruments to provide (I) proper fuses, (II) proper transformer or voltage stabilizer or UPS as required. Adapting a 110V instrument to work in 220V if the feature is built into the instruments. Building a 220V-110V step down power unit with proper fuse. Changing bulbs in ophthalmoscope, retinoscope, slit lamp, microscope, lensometer, keratometer and fundus camera. Locating electrical faults in equipment like torchlight, surgical lamp, foot switch etc. and rectifying the same.

Cleaning optical surfaces (mirrors, lenses and prisms). Dismantling, cleaning and assembling the following instruments ophthalmoscopes (direct and indirect), Retinoscope, Slit lamp. Carrying out preventive maintenance on other optical instruments: microscopes (operating and laboratory) lensometer, keratometer and fundus camera.

Locating and rectifying faults in castor wheels of equipment. Locating and rectifying faults in movement of table tops of slit lamp, fundus camera and other instruments, Lubricating necessary parts. Sharpening and repairing surgical instruments. Adapting damaged or worn-out surgical instruments for other use. Checking the calibration and rectifying faults in any in Schiotz tonometer. Checking leaks if any and fixing them and topping mercury in BP meters. Checking leaks if any in cryosystem and fixing the same.