---
title: NCLE 3.3
description: "3: Fitting Verification	\n	\n\nTwo broad categories of rigid contact lenses would include the Palpebral Lens and the\nlarger Lid Attachment Lens.\n.5/\nTHE PALBEBRAL LENS:\n \nGeneral characteristics: The lenses are small and thin.\nThey are small enough to be contained within the\ncornea with little or no contact with the upper or lower\nlids. Diameters usually range from 7.8 to 8.6 mm. With\neach blink the lens moves up and approaches the\nsuperior limbus. Between blinks, in ideal cases, it falls\nslowly toward the inferior limbus lowering to just\nbelow the center. Thicknesses are generally in the range\nof 0.08 and 0.12 mm. and the peripheral curves are\nrelatively steep.\n\nThe lenses should be large enough to provide a minimal\nsense of motion during blinking producing as little\nglare as possible. However, too large a lens can result\nin reduced comfort. The thinness of the lens results in\nsome flexure with each blink which creates a tear pump\nthat can help with tear exchange.\n\n1	It provides excellent tear exchange resulting in minimal corneal edema \nand spectacle blur.\n2.	Eye movement is free from lid irritation since the lens is smaller than the\npalpebral fissure.\n3.	The thinner lenses are more comfortable than conventional lenses and can\ntherefore be employed as a possible alternative to soft lenses especially\nwhen a significant amount of corneal astigmatism is present.\n4.	A high riding rigid lens problem may be solved through the use of the\nsmall microthin lenses which may center better.\n5.	Patients who have induced corneal astigmatism caused by the the \"mold-\ning\" effect of larger lenses may benefit from a smaller microthin lens."
---

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# NCLE 3.3

[NCLE 3-3 Photo](https://michaelrjensen.online/hubfs/IMG_8363.jpg)

| 3-3   |
| --- |

|   |   |   |
| --- | --- | --- |
| ***3: Fitting Verification*** |   |  |
|   |   |  |

**Two broad categories of rigid contact lenses would include the *Palpebral Lens* and the larger *Lid Attachment Lens.***

.

**THE PALBEBRAL LENS:**

**General characteristics: The lenses are small and thin.**

**They are small enough to be contained within the**

**cornea with little or no contact with the upper or lower**

**lids. Diameters usually range from 7.8 to 8.6 mm. With**

**each blink the lens moves up and approaches the**

**superior limbus. Between blinks, in ideal cases, it falls**

**slowly toward the inferior limbus lowering to just**

**below the center. Thicknesses are generally in the range**

**of 0.08 and 0.12 mm. and the peripheral curves are**

**relatively steep.**

**The lenses should be large enough to provide a minimal**

**sense of motion during blinking producing as little**

**glare as possible. However, too large a lens can result**

**in reduced comfort. The thinness of the lens results in**

**some flexure with each blink which creates a tear pump**

**that can help with tear exchange.**

 

- **It provides excellent tear exchange resulting in minimal corneal edema and spectacle blur.**

1. **Eye movement is free from lid irritation since the lens is smaller than the palpebral fissure.**

1. **The thinner lenses are more comfortable than conventional lenses and can therefore be employed as a possible alternative to soft lenses especially when a significant amount of corneal astigmatism is present.**

1. **A high riding rigid lens problem may be solved through the use of the small microthin lenses which may center better.**

1. **Patients who have induced corneal astigmatism caused by the the "molding" effect of larger lenses may benefit from a smaller microthin lens.**

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