.                                          Home Dr's Comments Partial List of Users Survey Results References Cases Brochure Brochure Page 2 Products Page Service Distributors                                                                                        

Articles about the Retinal Acuity Meter RAM® :

When pre-operative acuity is better than 20/200, the following studies and abstracts conclude the following levels of correlation for predicting postoperative acuity prior to cataract surgery (predicts within 2 lines in 95% and within 1 line in 85% when preoperative acuity is better than 20/200) or YAG laser capsulotomy (predicts postoperative acuity to within 1 lines in 97% and within 2 lines in 100% of eyes when the preoperative acuity is better than 20/200.)

 

Hofeldt, A.J.: Illuminated near card assessment of potential visual acuity. J Cataract Refract Surg. 22:367-371, 1996.

Capsule Alone: Excellent Predictions (100%)
Co-Morbid Disease: Excellent Predictions (100%)
  Data Link

Weiss, M.J. and Hofeldt, A.J.: Illuminated near card assessment of potential acuity in macular disease. Vitreous Society Meeting, 1996.

Co-Morbid Disease: Excellent Predictions (98%)    Data Link

Asbell, P.A., Krashin-Bishler, I, Perez, V., Schechter, C. and So, P.: Scientific Poster #253, American Academy of Ophthalmology, 1996. 

Glaucoma: Excellent agreement with distance acuity (92%)  Data Link

Hofeldt, A.J. and Weiss M.J.: The illuminated near card assessment of acuity in eyes with cataract. Ophthalmology 105, 1531-6, 1998. 

Cataract Alone: Excellent Predictions (97%)
Co-Morbid Disease: Excellent Predictions (100%)    Data Link

Chang, MA, Airiani, S, Miele, D, Braunstein, RE : A Comparison of the Potential Acuity Meter (PAM) and the Illuminated Near Card (INC) in Patients undergoing Phacoemulsification.  EYE 2006) 20, 1345–1351.

Cataract Alone: Excellent Predictions (94%)
Co-Morbid Disease: Excellent Predictions (93%)
      Data Link

 

Studies Comparing RAM® to PAM  

Asbell, P.A., Krashin-Bishler, I, Perez, V., Schechter, C. and So, P.: Scientific Poster #253, American Academy of Ophthalmology, 1996. 

Glaucoma: Excellent agreement with distance acuity (92%)  Data Link

 

Chang, MA, Airiani, S, Miele, D, Braunstein, RE : A Comparison of the Potential Acuity Meter (PAM) and the Illuminated Near Card (INC) in Patients undergoing Phacoemulsification.  EYE advance online publication, 23 September 2005

Cataract Alone: Excellent Predictions (94%)
Co-Morbid Disease: Excellent Predictions (93%)
      Button Text

Home Hofeldt P. Asbell et al. Hofeldt/Weiss1 Hofeldt & Weiss