+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The optical quality of currently manufactured intraocular lenses

, : The optical quality of currently manufactured intraocular lenses. American Journal of Ophthalmology 88(3 Pt 2): 548-555

We selected 95 intraocular lenses from ten lens manufacturers for a study of optical quality. Tremendous variation in resolution from a high of 313 line pairs per millimeter to a low of 40 line pairs per millimeter was seen. All of the lenses from eight manufacturers showed greater than 100 line pairs per millimeter resolution, the American National Standards Institute proposed minimum. Five of the 95 lenses had greater than 1.0 diopter error, whereas 79 of the 95 lenses had less than 0.5 diopter error from the stated power. With respect to toricity, there were 11 lenses with greater than 0.25 diopter (built-in astigmatism), however, no lenses showed more than 0.5 diopter astigmatism. Two lenses had a built-in double image, another clinically significant problem. We believe the optical quality of the lenses from some lens manufacturers cannot be guaranteed.


PMID: 484684

Other references

Brown, H.G., 1970: Electrical and cold injuries of the hand. Orthopedic Clinics of North America 1(2): 321-323

Takeshima, Y., 1998: Genetic diagnosis of Duchenne/Becker muscular dystrophy; clinical application and problems. Duchenne/Becker muscular dystrophies (DMD/BMD) are the most common inherited muscular disease and caused by mutations in the dystrophin gene. A half to two-thirds of DMD and BMD patients carry deletions (usually of several kilobases of genomic DNA...

Schulman, L.S., 2012: Cluster identification based on correlations. The problem addressed is the identification of cooperating agents based on correlations created as a result of the joint action of these and other agents. A systematic method for using correlations beyond second moments is developed. The technique...

Wit, J.J. de; Cutsem, J. van; Schoenmaker, G.J.W.; Braunius, W.W.; Bergh, J.P.A.M. van den, 1993: A serious outbreak of Aspergillus flavus infection in broilers, and disinfection by means of enilconazole. High mortality commencing at 20 days of age in a group of 23 000 broilers was traced to A. flavus infection, with granuloma formation in lungs and air sacs. When the group was slaughtered at 37 days of age (after 11.7% had died), 5.2% were rejecte...

Marshman, L.A.G., 2007: Disc cyst. Journal of Neurosurgery. Spine 7(1): 113-4; Author Reply 114

Puissant, S.Pinna.; Gauthier, J-Marie.; Van Oirbeek, R., 2011: The contribution of social rank and attachment theory to depression in a non clinical sample of adolescents. This study explores the relative contribution of the overall quality of attachment to the mother, to the father and to peers (Inventory of Parent and Peer Attachment scales), the style of attachment towards peers (Attachment Questionnaire for Chil...

Rao, P.S.; Kotian, M.; Shivananda, P.G., 1988: Drug resistance of Mycobacterium tuberculosis isolated from sputum in Manipal. Indian Journal of Pathology & Microbiology 31(4): 316-320

Van Aelbrouck, C.; Englberger, L.; Faraoni, D., 2013: Review of the fibrinolytic system: comparison of different antifibrinolytics used during cardiopulmonary bypass. Antifibrinolytic agents are often used in different clinical situations, especially in cardiac surgery. During several years, aprotinin was the drug of choice because more than antifibrinolytic properties, aprotinin offers a direct effect on kalli...

Morrison, P.R.; Seiler, A.L.; Head, J.M., 1950: Studies on adhesion and syneresis in fibrin clots. An abstract.

Jana, Sp, 1978: Effect of light on age of sexual maturity and egg production in layers. Poultry adviser: 11 (6) 61-65